B7-LIKE POLYNUCLEOTIDES, POLYPEPTIDES, AND ANTIBODIES

Abstract: The present invention relates to novel human B7-like polypeptides and isolated nucleic acids containing the coding regions of the genes encoding such polypeptides. Also provided are vectors, host cells, antibodies, and recombinant methods for producing human B7-like polypeptides. The invention further relates to diagnostic and therapeutic methods useful for diagnosing and treating disorders related to these novel human B7-like polypeptides.

Description: B7-LIKE POLYNUCLEOTIDES, POLYPEPTIDES, AND ANTIBODIES FIELD OF THE INVENTION [1] The present invention relates to novel B7-like proteins. More specifically, isolated nucleic acid molecules are provided encoding novel B7-like polypeptides. Novel B7-like polypeptides and antibodies that bind to these polypeptides are provided. Also provided are vectors, host cells, and recombinant and synthetic methods for producing human B7-like polynucleotides and/or polypeptides. The invention further relates to diagnostic and therapeutic methods useful for diagnosing, treating, preventing and/or prognosing disorders related to these novel B7-like polypeptides. The invention further relates to screening methods for identifying agonists and antagonists, of polynucleotides and polypeptides of the invention. The present invention further relates to methods and/or compositions for inhibiting the production and function ofthe polypeptides ofthe present invention. BACKGROUND OF THE INVENTION [2] Costimulatory interactions between the B7 family ligands and their receptors play critical roles in the growth, differentiation and death of T cells. Engagement of the T cell costimulator CD28 by either specific antibodies or its natural ligands B7-1 and B7-2 increases antigen-specific proliferation of CD4+ T cells, enhances production of cytokines, induces 'maturation of CD8+ effector T cells, and promotes T cell survival (Chambers, C.A., et al, Curr. Opin. Immunol, 9:396-404 (1997); Lenschow, D.J., et al, Annu. Rev. Immunol, 14:233-58 (1996); Chen, L., et al, Immunol. Today, 14:483-86 (1993); Boise, L.H., et al, Curr. Opin. Immunol, 7:620-25 (1995)). Signaling through the homologous CTLA-4 receptor of B7-1 and B7-2 on activated T cells, however, is thought to deliver a negative signal that inhibits T cell proliferation, IL-2 production, and cell cycle progression (Krummei, M.F., et al, J. Exp. Med., 183:2533-540 (1996); Walunas, T.L., et al, J. Exp. Med., 183:2541-550 (1996)). [3] Although B7-1 and B7-2 share approximately 20% homology at the amino acid level, the two proteins share similar tertiary structure and costimulatory functions (Peach, R.J.J., et al, J. Biol. Chem., 270:21181-187 (1995); Fargeas, C.A., et al, J. Exp. Med., 182:661-15 (1995); Bajorath, J., et al, Protein Sc , 5:2148-150 (1994); Guo, Y., et al, Mol Immunol, 35:215-25 (1998)). [4] Recent studies indicate that other members ofthe B7-CD28 family of proteins may also participate in the regulation of cellular and humoral immune responses. One of the new members is inducible costimulator (ICOS), a CD28-like receptor (Hutloff, A., et al, Nature, 397:263-66 (1999)). While the natural ligand for ICOS has not been identified yet, a F44 monoclonal antibody (mAb) against ICOS costimulates T cell growth and increases secretion of several cytokines, including EL-10, IFN-γ, and IL-4, but not IL-2 (Hutloff, A., et al, Nature, 397:263-66 (1999)). [5] Another new B7 family member is mouse B7h, identified by Swallow and colleagues (Swallow, M.M., et al, Immunity, 11:423-32 (1999)). B7h does not bind to CD28 and CTLA-4, and can costimulate T cell growth in the presence of antigenic signals. Surface expression of B7h can be up-regulated by TNF-α in 3T3 fibroblast cell lines, and the increase of B7h mRNA is also observed in non-lymphoid tissues exposed to LPS (Swallow, M.M., et al, Immunity, 11:423-32 (1999)). [6] A further recently reported novel member of the human B7 family of proteins is B7-H1 (Dong, H., et al, Nature Med, 5:1365-69 (1999)). B7-H1 shares approximately 20% identical amino acid sequence with B7-1 and B7-2 in the Ig V- and Ig C-like extracellular domains, but differs more profoundly from B7-1 and B7-2 in the cytoplasmic domain. Surface expression of B7-H1 can be detected in the majority of activated CD 14+ macrophages, and in a fraction of activated T cells. B7-H1 costimulates T cell responses in the presence of the suboptimal doses of anti-CD3 mAb, enhances allogenic mixed lymphocyte responses, and preferentially induces EL- 10 secretion from T cells (Dong, H., et al, Nature Med., 5:1365-69 (1999)). [7] Activation of certain cells in the body, such as T cells, can result in the initiation of the inflammatory response, resulting in inflammation. Inflammation, which is characterized by redness, swelling, heat, and pain, is an essential immune response which occurs following tissue injury or infection. The initial event triggers an elaborate signaling cascade which results in increased local blood flow, blood clotting, and vascular permeability. These acute changes facilitate the recruitment of phagocytic leukocytes to the site of injury or infection. Once at the affected site, the immune cells can begin to neutralize pathogens and contribute to tissue repair. [8] Among the many protein classes involved in the inflammatory response are blood clotting factors, vasodilating substances (such as histamine and bradykimn), cell adhesion molecules, cytokines (such as interleukins and chemokines), and immune system effector cells (such as neutrophils, macrophages, and lymphocytes). [9] Although the inflammatory response is an important defense mechanism against infection by foreign substances, inappropriate or excessive activation of inflammation can lead to tissue damage and even death. Medical conditions resulting from inflammation include, but are not limited to, inflammatory bowel disease, multiple sclerosis, arthritis, asthma, allergies, sarcoidosis, septic shock, gastrointestinal cancers, pancreatitis, dermatitis, gout, systemic lupus erythematosis, and Grave's disease. Inflammation is also a potentially life-threatening complication of cardiopulmonary bypass surgery, renal ischemia-reperfusion, and traumatic injury. [10] Several steroidal and nonsteroidal drugs have been used to control inflammation or to provide symptomatic relief. However, these therapies can be accompanied by numerous side effects which limit their usefulness. Therefore, there is a continuing need for more effective and less toxic alternatives for modulating the inflammatory response. [11] Thus, there is a further need for polypeptides that are involved in the costimulation of T-cells, since disturbances of such regulation may be involved in disorders relating to the immune system and/or inflammatory disorders. Therefore, there is a need for the identification and characterization of such human polypeptides and antagonists thereof which can play a role in detecting, preventing, ameliorating or correcting such disorders. SUMMARY OF THE INVENTION [12] The present invention includes isolated nucleic acid molecules comprising, or alternatively, consisting of a polynucleotide sequence disclosed in the sequence listing and/or contained in a human cDNA plasmid described in Table 1 and deposited with the American Type Culture Collection (ATCC). Fragments, variants, and derivatives of these nucleic acid molecules are also encompassed by the invention. The present invention also includes isolated nucleic acid molecules comprising, or alternatively, consisting of, a polynucleotide encoding B7-like polypeptides. The present invention further includes B7-like polypeptides encoded by these polynucleotides. Further provided for are amino acid sequences comprising, or alternatively, consisting of, B7-like polypeptides as disclosed in the sequence listing and/or encoded by the human cDNA plasmids described in Table 1 and deposited with the ATCC. Antibodies that bind these polypeptides are also encompassed by the invention. Polypeptide fragments, variants, and derivatives of these amino acid sequences are also encompassed by the invention, as are polynucleotides encoding these polypeptides and antibodies that bind these polypeptides. DETAILED DESCRIPTION Tables [13] Table 1 summarizes ATCC Deposits, Deposit dates, and ATCC designation numbers of deposits made with the ATCC in connection with the present application. Table 1 further summarizes the information pertaining to each "Gene No." described below, including cDNA plasmid identifier, the type of vector contained in the cDNA plasmid identifier, the nucleotide sequence identifier number, nucleotides contained in the disclosed sequence, the location of the 5' nucleotide of the start codon of the disclosed sequence, the amino acid sequence identifier number, and the last amino acid of the ORF encoded by the disclosed sequence. [14] Table 2 indicates public ESTs, of which at least one, two, three, four, five, ten, or more of any one or more of these public EST sequences are optionally excluded from certain embodiments ofthe invention. [15] Table 3 represents the Tabular data for Figure 2, relating to the amino acid analysis of the B7-H8 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [16] Table 4 represents the Tabular data for Figure 4, relating to the amino acid analysis of the B7-H7 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [17] Table 5 represents the Tabular data for Figure 6, relating to the amino acid analysis of the B7-H9 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [18] Table 6 represents the Tabular data for Figure 8, relating to the amino acid analysis of the B7-H11 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [19] Table 7 represents the Tabular data for Figure 10, relating to the amino acid analysis of the B7-H10 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [20] Table 8 represents the Tabular data for Figure 12, relating to the amino acid analysis of the B7-H12 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [21] Table 9 represents the Tabular data for Figure 14, relating to the amino acid analysis of the B7-H13 protein. Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [22] Table 10 summarizes the expression profile of polynucleotides corresponding to the clones disclosed in Table 1. The first column provides a unique clone identifier, "cDNA PlasmidN", for a cDΝA clone related to each contig sequence disclosed in Table 1. Column 2, "Library Code" shows the expression profile of tissue and/or cell line libraries which express the polynucleotides of the invention. Each Library Code in column 2 represents a tissue/cell source identifier code corresponding to the Library Code and Library description provided in Table 12. Expression of these polynucleotides was not observed in the other tissues and/or cell libraries tested. One of skill in the art could routinely use this information to identify tissues which show a predominant expression pattern of the corresponding polynucleotide of the invention or to identify polynucleotides which show predominant and/or specific tissue expression. [23] Table 11, column 1, provides a nucleotide sequence identifier, "SEQ ID ΝO:X," that matches a nucleotide SEQ ID NO:X disclosed in Table 1, column 5. Table 11, column 2, provides the chromosomal location, "Cytologic Band or Chromosome," of polynucleotides corresponding to SEQ ID NO:X. Chromosomal location was determined by finding exact matches to EST and cDNA sequences contained in the NCBI (National Center for Biotechnology mformation) UniGene database. [24] Table 12, column 1, provides the Library Code disclosed in Table 10, column 2. Column 2 provides a description of the tissue or cell source from which the corresponding library was derived. Library codes corresponding to diseased tissues are indicated in column 3 with the word "disease". The use of the word "disease" in column 3 is non-limiting. The tissue source of the library may be specific (e.g., a neoplasm), or may be disease-associated (e.g., a tissue sample from a normal portion of a diseased organ). Furthermore, libraries lacking the "disease" designation may still be derived from sources directly or indirectly involved in a disease state or disorder, and therefore may have a further utility in that disease state or disorder. Figures [25] Figures 1A-D show the nucleotide (SEQ ID NO: 2) and deduced amino acid sequence (SEQ ID NO: 14) corresponding to the B7-H8 gene. [26] Figure 2 shows an analysis of the amino acid sequence of the B7-H8 protein (SEQ ID NO: 14). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations ofthe highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [27] Figures 3A-C show the nucleotide (SEQ ID NO: 3) and deduced amino acid sequence (SEQ ID NO: 15) corresponding to the B7-H7 gene. [28] Figure 4 shows an analysis ofthe amino acid sequence of the B7-H7 protein (SEQ ID NO: 15). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. hi the "Antigenic Index or Jameson- Wolf ' graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [29] Figures 5A-C show the nucleotide (SEQ ID NO: 4) and deduced amino acid sequence (SEQ ID NO: 16) corresponding to the B7-H9 gene. [30] Figure 6 shows an analysis ofthe amino acid sequence ofthe B7-H9 protein (SEQ ID NO: 16). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations ofthe highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present mvention, as are polynucleotides encoding these polypeptides. [31] Figures 7A-C show the nucleotide (SEQ ID NO: 5) and deduced amino acid sequence (SEQ ID NO: 17) corresponding to the B7-H11 gene. [32] Figure 8 shows an analysis of the amino acid sequence of the B7-H11 protein (SEQ ID NO: 17). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations ofthe highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [33] Figures 9A-B show the nucleotide (SEQ JO NO: 6) and deduced amino acid sequence (SEQ ID NO: 18) corresponding to the B7-H10 gene. [34] Figure 10 shows an analysis of the amino acid sequence of the B7-H10 protein (SEQ ID NO: 18). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations ofthe highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [35] Figures 11A-B show the nucleotide (SEQ ID NO: 7) and deduced amino acid sequence (SEQ JJD NO: 19) corresponding to the B7-H12 gene. [36] Figure 12 shows an analysis of the amino acid sequence of the B7-H12 protein (SEQ ID NO: 19). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations ofthe highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. [37] Figures 13A-C show the nucleotide (SEQ ID NO: 8) and deduced amino acid sequence (SEQ ID NO: 20) corresponding to the B7-H13 gene. [38] Figure 14 shows an analysis of the amino acid sequence of the B7-H13 protein (SEQ ID NO: 20). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations ofthe highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. Definitions [39] The following definitions are provided to facilitate understanding of certain terms used throughout this specification. [40] In the present invention, "isolated" refers to material removed from its original environment (e.g., the natural environment if it is naturally occurring), and thus is altered "by the hand of man" from its natural state. For example, an isolated polynucleotide could be part of a vector or a composition of matter, or could be contained within a cell, and still be "isolated" because that vector, composition of matter, or particular cell is not the original environment of the polynucleotide. The term "isolated" does not refer to genomic or cDNA libraries, whole cell total or mRNA preparations, genomic DNA preparations (including those separated by electrophoresis and transferred onto blots), sheared whole cell genomic DNA preparations or other compositions where the art demonstrates no distinguishing features ofthe polynucleotide/sequences ofthe present invention. [41] As used herein, a "polynucleotide" refers to a molecule having a nucleic acid sequence contained in SEQ ID NO:X (as described in column 5 of Table 1), or cDNA plasmid.N (as described in column 2 of Table 1 and contained within a pool of plasmids deposited with the ATCC in ATCC Deposit Νo:Z). For example, the polynucleotide can contain the nucleotide sequence of the full length cDNA sequence, including the 5' and 3' untranslated sequences, the coding region, with or without a natural or artificial signal sequence, the protein coding region, as well as fragments, epitopes, domains, and variants of the nucleic acid sequence. Moreover, as used herein, a "polypeptide" refers to a molecule having an amino acid sequence encoded by a polynucleotide of the invention as broadly defined (obviously excluding poly-Phenylalanine or poly-Lysine peptide sequences which result from translation of a polyA tail of a sequence corresponding to a cDNA). [42] In the present invention, a representative plasmid containing the sequence of SEQ ID NO:X was deposited with the American Type Culture Collection ("ATCC") and/or described in Table 1. As shown in Table 1, each plasmid is identified by a cDNA Plasmid Identifier and the ATCC Deposit Number (ATCC Deposit No:Z). Plasmids that were pooled and deposited as a single deposit have the same ATCC Deposit Number. The ATCC is located at 10801 University Boulevard, Manassas, Virginia 20110-2209, USA. The ATCC deposit was made pursuant to the terms of the Budapest Treaty on the international recognition ofthe deposit of microorganisms for purposes of patent procedure. [43] A "polynucleotide" of the present invention also includes those polynucleotides capable of hybridizing, under stringent hybridization conditions, to sequences contained in SEQ ID NO:X, or the complement thereof (e.g., the complement of any one, two, three, four, or more of the polynucleotide fragments described herein) and/or sequences contained in cDNA plasmid:N (e.g., the complement of any one, two, three, four, or more of the polynucleotide fragments described herein). "Stringent hybridization conditions" refers to an overnight incubation at 42 degree C in a solution comprising 50% formamide, 5x SSC (750 mM ΝaCl, 75 mM trisodium citrate), 50 mM sodium phosphate (pH 7.6), 5x Denhardt's solution, 10% dextran sulfate, and 20 μg/ml denatured, sheared salmon sperm D A, followed by washing the filters in O.lx SSC at about 65 degree C. [44] Also included within "polynucleotides" of the present invention are nucleic acid molecules that hybridize to the polynucleotides of the present invention at lower stringency hybridization conditions. Changes in the stringency of hybridization and signal detection are primarily accomplished through the manipulation of formamide concentration (lower percentages of formamide result in lowered stringency); salt conditions, or temperature. For example, lower stringency conditions include an overnight incubation at 37 degree C in a solution comprising 6X SSPE (20X SSPE = 3M ΝaCl; 0.2M ΝaH 2 PO 4 ; 0.02M EDTA, pH 7.4), 0.5% SDS, 30% formamide, 100 μg/ml salmon sperm blocking DNA; followed by washes at 50 degree C with 1XSSPE, 0.1% SDS. In addition, to achieve even lower stringency, washes performed following stringent hybridization can be done at higher salt concentrations (e.g. 5X SSC). [45] Note that variations in the above conditions may be accomplished through the inclusion and/or substitution of alternate blocking reagents used to suppress background in hybridization experiments. Typical blocking reagents include Denhardt's reagent, BLOTTO, heparin, denatured salmon sperm DNA, and commercially available proprietary formulations. The inclusion of specific blocking reagents may require modification of the hybridization conditions described above, due to problems with compatibility. [46] Of course, a polynucleotide which hybridizes only to polyA÷ sequences (such as any 3' terminal polyA+ tract of a cDNA shown in the sequence listing), or to a complementary stretch of T (or U) residues, would not be included in the definition of "polynucleotide," since such a polynucleotide would hybridize to any nucleic acid molecule containing a poly (A) stretch or the complement thereof (e.g., practically any double-stranded cDNA clone generated using oligo dT as a primer). [47] The polynucleotides of the present invention can be composed of any polyribonucleotide or polydeoxribonucleotide, which may be unmodified RNA or DNA or modified RNA or DNA. For example, polynucleotides can be composed of single- and double-stranded DNA, DNA that is a mixture of single- and double-stranded regions, single- and double-stranded RNA, and RNA that is mixture of single- and double-stranded regions, hybrid molecules comprising DNA and RNA that may be single-stranded or, more typically, double-stranded or a mixture of single- and double-stranded regions. In addition, the polynucleotide can be composed of triple-stranded regions comprising RNA or DNA or both RNA and DNA. A polynucleotide may also contain one or more modified bases or DNA or RNA backbones modified for stability or for other reasons. "Modified" bases include, for example, tritylated bases and unusual bases such as inosine. A variety of modifications can be made to DNA and RNA; thus, "polynucleotide" embraces chemically, enzymatically, or metabolically modified forms. [48] In specific embodiments, the polynucleotides of the invention are at least 15, at least 30, at least 50, at least 100, at least 125, at least 500, or at least 1000 continuous nucleotides but are less than or equal to 300 kb, 200 kb, 100 kb, 50 kb, 15 kb, 10 kb, 7.5kb, 5 kb, 2.5 kb, 2.0 kb, or 1 kb, in length. In a further embodiment, polynucleotides of the invention comprise a portion of the coding sequences, as disclosed herein, but do not comprise all or a portion of any intron. hi another embodiment, the polynucleotides comprising coding sequences do not contain coding sequences of a genomic flanking gene (i.e., 5' or 3' to the gene of interest in the genome). In other embodiments, the polynucleotides of the invention do not contain the coding sequence of more than 1000, 500, 250, 100, 50, 25, 20, 15, 10, 5, 4, 3, 2, or 1 genomic flanking gene(s). [49] "SEQ ID NO:X" refers to a polynucleotide sequence described in column 5 of Table 1, while "SEQ JO NO:Y" refers to a polypeptide sequence described in column 10 of Table 1. SEQ ED NO:X is identified by an integer specified in column 6 of Table 1. The polypeptide sequence SEQ ID NO:Y is a translated open reading frame (ORF) encoded by polynucleotide SEQ ED NO:X. The polynucleotide sequences are shown in the sequence listing immediately followed by all of the polypeptide sequences. Thus, a polypeptide sequence corresponding to polynucleotide sequence SEQ ED NO:2 is the first polypeptide sequence shown in the sequence listing. The second polypeptide sequence corresponds to the polynucleotide sequence shown as SEQ ID NO:3, and so on. [50] The polypeptides of the present invention can be composed of amino acids joined to each other by peptide bonds or modified peptide bonds, i.e., peptide isosteres, and may contain amino acids other than the 20 gene-encoded amino acids. The polypeptides may be modified by either natural processes, such as posttranslational processing, or by chemical modification techniques which are well known in the art. Such modifications are well described in basic texts and in more detailed monographs, as well as in a voluminous research literature. Modifications can occur anywhere in a polypeptide, including the peptide backbone, the amino acid side-chains and the amino or carboxyl termini. It will be appreciated that the same type of modification may be present in the same or varying degrees at several sites in a given polypeptide. Also, a given polypeptide may contain many types of modifications. Polypeptides may be branched, for example, as a result of ubiquitination, and they may be cyclic, with or without branching. Cyclic, branched, and branched cyclic polypeptides may result from posttranslation natural processes or may be made by synthetic methods. Modifications include acetylation, acylation, ADP-ribosylation, amidation, covalent attachment of flavin, covalent attachment of a heme moiety, covalent attachment of a nucleotide or nucleotide derivative, covalent attachment of a lipid or lipid derivative, covalent attachment of phosphotidylinositol, cross-linking, cyclization, disulfide bond formation, demethylation, formation of covalent cross-links, formation of cysteine, formation of pyroglutamate, formylation, gamma-carboxylation, glycosylation, GPI anchor formation, hydroxylation, iodination, methylation, myristoylation, oxidation, pegylation, proteolytic processing, phosphorylation, prenylation, racemization, selenoylation, sulfation, transfer- RNA mediated addition of amino acids to proteins such as arginylation, and ubiquitination. (See, for instance, PROTEINS - STRUCTURE AND MOLECULAR PROPERTIES, 2nd Ed., T. E. Creighton, W. H. Freeman and Company, New York (1993); POSTTRANSLATIONAL COVALENT MODIFICATION OF PROTEINS, B. C. Johnson, Ed., Academic Press, New York, pgs. 1-12 (1983); Seifter et al., Meth Enzymol 182:626-646 (1990); Rattan et al., Ann NY Acad Sci 663:48-62 (1992)). [51] The polypeptides of the invention can be prepared in any suitable manner. Such polypeptides include isolated naturally occurring polypeptides, recombinantly produced polypeptides, synthetically produced polypeptides, or polypeptides produced by a combination of these methods. Means for preparing such polypeptides are well understood in the art. [52] The polypeptides may be in the form of the secreted protein, including the mature form, or may be a part of a larger protein, such as a fusion protein (see below). It is often advantageous to include an additional amino acid sequence which contains secretory or leader sequences, pro-sequences, sequences which aid in purification, such as multiple histidine residues, or an additional sequence for stability during recombinant production. [53] The polypeptides of the present invention are preferably provided in an isolated form, and preferably are substantially purified. A recombinantly produced version of a polypeptide, including the secreted polypeptide, can be substantially purified using techniques described herein or otherwise known in the art, such as, for example, by the one- step method described in Smith and Johnson, Gene 67:31-40 (1988). Polypeptides of the invention also can be purified from natural, synthetic or recombinant sources using techniques described herein or otherwise known in the art, such as, for example, antibodies of the invention raised against the polypeptides of the present invention in methods which are well known in the art. [54] By a polypeptide demonstrating a "functional activity" is meant, a polypeptide capable of displaying one or more known functional activities associated with a full-length (complete) protein ofthe invention. Such functional activities include, but are not limited to, biological activity, antigenicity [ability to bind (or compete with a polypeptide for binding) to an anti-polypeptide antibody], immunogenicity (ability to generate antibody which binds to a specific polypeptide of the invention), ability to form multimers with polypeptides of the invention, and ability to bind to a receptor for a polypeptide. [55] "A polypeptide having functional activity" refers to polypeptides exhibiting activity similar, but not necessarily identical to, an activity of a polypeptide of the present invention, including mature forms, as measured in a particular assay, such as, for example, a biological assay, with or without dose dependency. In the case where dose dependency does exist, it need not be identical to that of the polypeptide, but rather substantially similar to the dose-dependence in a given activity as compared to the polypeptide of the present invention (i.e., the candidate polypeptide will exhibit greater activity or not more than about 25-fold less and, preferably, not more than about tenfold less activity, and most preferably, not more than about three-fold less activity relative to the polypeptide ofthe present invention). [56] The functional activity of the polypeptides, and fragments, variants derivatives, and analogs thereof, can be assayed by various methods. [57] For example, in one embodiment where one is assaying for the ability to bind or compete with full-length polypeptide of the present invention for binding to an antibody to the full length polypeptide, various immunoassays known in the art can be used, including but not limited to, competitive and non-competitive assay systems using techniques such as radioimmunoassays, ELISA (enzyme linked immunosorbent assay), "sandwich" immunoassays, immunoradiometric assays, gel diffusion precipitation reactions, immunodiffusion assays, in situ immunoassays (using colloidal gold, enzyme or radioisotope labels, for example), western blots, precipitation reactions, agglutination assays (e.g., gel agglutination assays, hemagglutination assays), complement fixation assays, immunofluorescence assays, protein A assays, and immunoelectrophoresis assays, etc. In one embodiment, antibody binding is detected by detecting a label on the primary antibody. In another embodiment, the primary antibody is detected by detecting binding of a secondary antibody or reagent to the primary antibody. In a further embodiment, the secondary antibody is labeled. Many means are known in the art for detecting binding in an immunoassay and are within the scope ofthe present invention. [58] In another embodiment, where a ligand is identified, or the ability of a polypeptide fragment, variant or derivative ofthe invention to multimerize is being evaluated, binding can be assayed, e.g., by means well-known in the art, such as, for example, reducing and non- reducing gel chromatography, protein affinity chromatography, and affinity blotting. See generally, Phizicky, E., et al., Microbiol. Rev. 59:94-123 (1995). In another embodiment, physiological correlates polypeptide of the present invention binding to its substrates (signal transduction) can be assayed. [59] i addition, assays described herein (see Examples) and otherwise known in the art may routinely be applied to measure the ability of polypeptides of the present invention and fragments, variants derivatives and analogs thereof to elicit polypeptide related biological activity (either in vitro or in vivo). Other methods will be known to the skilled artisan and are within the scope ofthe invention. FEATURES OFPROTEIN ENCODED BY GENE NO: 1 [60] For purposes of this application, this gene and its corresponding translation product are known as the B7-H8 gene and B7-H8 protein. This protein is believed to reside as a cell- surface molecule, and the transmembrane domain of this protein is believed to approximately embody the following preferred amino acid residues: SKASLCVSSFFAISWALLPL (SEQ ED NO: 26). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these peptides. As one skilled in the art would understand, the transmembrane domain was predicted using computer analysis, and the transmembrane domain may vary by one, two, three, four, five, six, seven, eight, nine, and/or ten amino acids from the N and C-termini of the predicted transmembrane domain. The B7-H8 gene shares sequence homology with members of the B7 family of ligands (i.e., B7-1 (See Genbank Accession AAF25807)). These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation and death of T cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation ofthe T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists, such as antibodies or small molecules directed against translation products ofthe B7-H8 gene are useful for treating T cell mediated immune system disorders, as well as disorders of other immune system cells, such as for example, neutrophils, macrophage, and leukocytes. [61] Preferred polypeptides of the present invention comprise, or alternatively consist of, one or both ofthe immunogenic epitopes shown in SEQ ID NO: 14 as residues: Lys-84 to Glu-95 and Ser-243 to Ser-249. Polynucleotides encoding these polypeptides are also encompassed by the mvention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [62] In nonexclusive embodiments, polypeptides of the invention comprise, or alternatively consist of, an amino acid sequence selected from the group consisting of: [63] The extracellular domain of the B7-H8 protein: MASLGQflLFWSπSIIIILAGAJALπGFGISGRHSITNTTNASAGNIGEDGILSCTFEPDIKL SDINIQWLKEGVLGLNHEFKEGKDELSEQDEMFRGRTANFADQNJNGNASLRLKNN QLTDAGTYKCYπTSKGKGΝAΝLEYKTGAFSMPENΝNDYΝASSETLRCEAPRWFPQP TNVWASQNDQGAΝFSENSΝTSFELΝSEΝNTMKNNSNLYΝVTIΝΝTYSCMIEΝDIAK ATGDEKNTESEIKRRSHLQLLΝ (SEQ ID NO: 27), [64] The mature extracellular domain of the B7-H8 protein: LπGFGISGRHSITVTTNASAGNIGEDGELSCTFEPDIKLSDiNIQWLKEGNLGLNHEFKE GKDELSEQDEMFRGRTAVFADQNrVGΝASLRLKΝNQLTDAGTYKCYπTSKGKGΝA ΝLEYKTGAFSMPENΝNDYΝASSETLRCEAPRWFPQPTNNWASQNDQGAΝFSENSΝT SFELΝSEΝVTMKNNSVLYΝNTIΝΝTYSCMIEΝDIAKATGDIKVTESEIKRRSHLQLLΝ (SEQ ED NO: 28), and/or [65] The leader sequence of the B7-H8 protein: MASLGQILFWSπSiπiLAGAIA (SEQ ID NO: 29). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [66] Also preferred are polypeptides comprising, or alternatively consisting of, fragments of the mature extracellular portion of the B7-H8 protein demonstrating functional activity (SEQ ED NO: 28). Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [67] By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H8 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H8 polypeptide for binding) to an anti-B7-H8 antibody], immunogenicity (ability to generate antibody which binds to a B7-H8 polypeptide), ability to form multimers with B7-H8 polypeptides of the invention, and ability to bind to a receptor for a B7-H8 polypeptide. [68] Figures 1A-D show the nucleotide (SEQ ED NO: 2) and deduced amino acid sequence (SEQ ID NO: 14) corresponding to this gene. Figure 2 shows an analysis of the amino acid sequence (SEQ ID NO: 14). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 2 are also represented in tabular form in Table 3. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XIN. The column headings refer to the following features of the amino acid sequence presented in Figure 2, and Table 3: "Res": amino acid residue of SEQ ED NO: 14 and Figures 1A-D; "Position": position of the corresponding residue within SEQ DD NO: 14 and Figures 1A-D; I: Alpha, Regions - Garnier-Robson; JJ: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier-Robson; IN: Beta, Regions - Chou-Fasman; V: Turn, Regions - Garnier-Robson; VI: Turn, Regions - Chou-Fasman; Nil: Coil, Regions - Garnier-Robson; NIII: Hydrophilicity Plot - Kyte-Doolittle; EX: Hydrophobicity Plot - Hopp-Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; XU: Flexible Regions - Karplus-Schulz; XJJJ: Antigenic Index - Jameson- Wolf; and XJN: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more of the following regions: alpha-helix and alpha-helix forming regions ("alpha- regions"), beta-sheet and beta-sheet forming regions ("beta-regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes ofthe protein set forth in Figure 2 and/or Table 3, as described above, was generated using the various modules and algorithms of the DΝA*STAR set on default parameters, hi a preferred embodiment, the data presented in columns NTH, IX, XDI, and XIN of Table 3 can be used to determine regions ofthe protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns NEU, IX, XDI, and/or XIN by choosing values which represent regions of the polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 2, but may, as shown in Table 3, be represented or identified by using tabular representations of the data presented in Figure 2. The DΝA*STAR computer algorithm used to generate Figure 2 (set on the original default parameters) was used to present the data in Figure 2 in a tabular format (See Table 3). The tabular format of the data in Figure 2 (See Table 3) is used to easily determine specific boundaries of a preferred region. [69] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ D NO: 2, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt, still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 2. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ DD NO: 2. h this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ DD NO: 2, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. In additional embodiments, the polynucleotides ofthe invention encode functional attributes ofthe corresponding protein. [70] Preferred polypeptide fragments of the invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the polypeptide can be described by the general formula m-282 where m is an integer from 2 to 277, where m corresponds to the position of the amino acid residue identified in SEQ DD NO: 14. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: A-2 to K-282; S- 3 to K-282; L-4 to K-282; G-5 to K-282; Q-6 to K-282; 1-7 to K-282; L-8 to K-282; F-9 to K- 282; W-10 to K-282; S-ll to K-282; 1-12 to K-282; 1-13 to K-282; S-14 to K-282; 1-15 to K- 282; 1-16 to K-282; 1-17 to K-282; 1-18 to K-282; L-19 to K-282; A-20 to K-282; G-21 to K- 282; A-22 to K-282; 1-23 to K-282; A-24 to K-282; L-25 to K-282; 1-26 to K-282; 1-27 to K- 282; G-28 to K-282; F-29 to K-282; G-30 to K-282; 1-31 to K-282; S-32 to K-282; G-33 to K-282; R-34 to K-282; H-35 to K-282; S-36 to K-282; 1-37 to K-282; T-38 to K-282; N-39 to K-282; T-40 to K-282; T-41 to K-282; N-42 to K-282; A-43 to K-282; S-44 to K-282; A-45 to K-282; G-46 to K-282; Ν-47 to K-282; 1-48 to K-282; G-49 to K-282; E-50 to K-282; D- 51 to K-282; G-52 to K-282; 1-53 to K-282; L-54 to K-282; S-55 to K-282; C-56 to K-282; T-57 to K-282; F-58 to K-282; E-59 to K-282; P-60 to K-282; D-61 to K-282; 1-62 to K-282; K-63 to K-282; L-64 to K-282; S-65 to K-282; D-66 to K-282; 1-67 to K-282; N-68 to K-282; 1-69 to K-282; Q-70 to K-282; W-71 to K-282; L-72 to K-282; K-73 to K-282; E-74 to K- 282; G-75 to K-282; N-76 to K-282; L-77 to K-282; G-78 to K-282; L-79 to K-282; N-80 to K-282; H-81 to K-282; E-82 to K-282; F-83 to K-282; K-84 to K-282; E-85 to K-282; G-86 to K-282; K-87 to K-282; D-88 to K-282; E-89 to K-282; L-90 to K-282; S-91 to K-282; E- 92 to K-282; Q-93 to K-282; D-94 to K-282; E-95 to K-282; M-96 to K-282; F-97 to K-282; R-98 to K-282; G-99 to K-282; R-100 to K-282; T-101 to K-282; A-102 to K-282; V-103 to K-282; F-104 to K-282; A-105 to K-282; D-106 to K-282; Q-107 to K-282; N-108 to K-282; 1-109 to K-282; N-l 10 to K-282; G-l 11 to K-282; Ν-l 12 to K-282; A-l 13 to K-282; S-l 14 to K-282; L-115 to K-282; R-116 to K-282; L-117 to K-282; K-118 to K-282; N-119 to K-282; V-120 to K-282; Q-121 to K-282; L-122 to K-282; T-123 to K-282; D-124 to K-282; A-125 to K-282; G-126 to K-282; T-127 to K-282; Y-128 to K-282; K-129 to K-282; C-130 to K- 282; Y-131 to K-282; 1-132 to K-282; 1-133 to K-282; T-134 to K-282; S-135 to K-282; K- 136 to K-282; G-137 to K-282; K-138 to K-282; G-139 to K-282; N-140 to K-282; A-141 to K-282; N-142 to K-282; L-143 to K-282; E-144 to K-282; Y-145 to K-282; K-146 to K-282; T-147 to K-282; G-148 to K-282; A-149 to K-282; F-150 to K-282; S-151 to K-282; M-152 to K-282; P-153 to K-282; E-154 to K-282; V-155 to K-282; N-156 to K-282; V-157 to K- 282; D-158 to K-282; Y-159 to K-282; N-160 to K-282; A-161 to K-282; S-162 to K-282; S- 163 to K-282; E-164 to K-282; T-165 to K-282; L-166 to K-282; R-167 to K-282; C-168 to K-282; E-169 to K-282; A-170 to K-282; P-171 to K-282; R-172 to K-282; W-173 to K-282; F-174 to K-282; P-175 to K-282; Q-176 to K-282; P-177 to K-282; T-178 to K-282; V-179 to K-282; V-180 to K-282; W-181 to K-282; A-182 to K-282; S-183 to K-282; Q-184 to K-282; N-185 to K-282; D-186 to K-282; Q-187 to K-282; G-188 to K-282; A-189 to K-282; Ν-190 to K-282; F-191 to K-282; S-192 to K-282; E-193 to K-282; V-194 to K-282; S-195 to K- 282; N-196 to K-282; T-197 to K-282; S-198 to K-282; F-199 to K-282; E-200 to K-282; L- 201 to K-282; N-202 to K-282; S-203 to K-282; E-204 to K-282; N-205 to K-282; V-206 to K-282; T-207 to K-282; M-208 to K-282; K-209 to K-282; V-210 to K-282; V-211 to K-282; S-212 to K-282; V-213 to K-282; L-214 to K-282; Y-215 to K-282; N-216 to K-282; V-217 to K-282; T-218 to K-282; 1-219 to K-282; N-220 to K-282; N-221 to K-282; T-222 to K- 282; Y-223 to K-282; S-224 to K-282; C-225 to K-282; M-226 to K-282; 1-227 to K-282; E- 228 to K-282; N-229 to K-282; D-230 to K-282; 1-231 to K-282; A-232 to K-282; K-233 to K-282; A-234 to K-282; T-235 to K-282; G-236 to K-282; D-237 to K-282; 1-238 to K-282; K-239 to K-282; N-240 to K-282; T-241 to K-282; E-242 to K-282; S-243 to K-282; E-244 to K-282; 1-245 to K-282; K-246 to K-282; R-247 to K-282; R-248 to K-282; S-249 to K- 282; H-250 to K-282; L-251 to K-282; Q-252 to K-282; L-253 to K-282; L-254 to K-282; Ν- 255 to K-282; S-256 to K-282; K-257 to K-282; A-258 to K-282; S-259 to K-282; L-260 to K-282; C-261 to K-282; N-262 to K-282; S-263 to K-282; S-264 to K-282; F-265 to K-282; F-266 to K-282; A-267 to K-282; 1-268 to K-282; S-269 to K-282; W-270 to K-282; A-271 to K-282; L-272 to K-282; L-273 to K-282; P-274 to K-282; L-275 to K-282; S-276 to K- 282; and/or P-277 to K-282 of SEQ DD NO: 14. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [71] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 1A-D (SEQ DD NO: 14), as described by the general formula 1- n, where n is an integer from 7 to 281, where n corresponds to the position ofthe amino acid residue identified in SEQ ED NO: 14. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group ofC-terminal deletions: M-1 to L-281; M-1 to M-280; M-1 to L-279; M-1 to Y-278; M-1 to P-277; M-1 to S-276; M-1 to L-275; M-1 to P-274; M-1 to L-273; M-1 to L-272; M-1 to A-271; M-1 to W-270; M-1 to S-269; M-1 to 1-268; M-1 to A- 267; M-1 to F-266; M-1 to F-265; M-1 to S-264; M-1 to S-263; M-1 to N-262; M-1 to C-261; M-1 to L-260; M-1 to S-259; M-1 to A-258; M-1 to K-257; M-1 to S-256; M-1 to Ν-255; M- 1 to L-254; M-1 to L-253; M-1 to Q-252; M-1 to L-251; M-1 to H-250; M-1 to S-249; M-1 to R-248; M-1 to R-247; M-1 to K-246; M-1 to 1-245; M-1 to E-244; M-1 to S-243; M-1 to E- 242 M--11 to T-241; M-1 to V-240; M-1 to K-239; M-1 to 1-238; M-1 to D-237; M-1 to G- 236 M--11 to T-235; M-1 to A-234; M-1 to K-233; M-1 to A-232; M-1 to 1-231; M-1 to D- 230 M--11 to N-229; M-1 to E-228; M-1 to 1-227; M-1 to M-226; M-1 to C-225; M-1 to S- 224 M--11 to Y-223; M-1 to T-222; M-1 to N-221; M-1 to N-220; M-1 to 1-219; M-1 to T- 218 M--11 to V-217; M-1 to N-216; M-1 to Y-215; M-1 to L-214; M-1 to V-213; M-1 to S- 212 M--11 to N-211; M-1 to N-210; M-1 to K-209; M-1 to M-208; M-1 to T-207; M-1 to V- 206 M--11 to Ν-205; M-1 to E-204; M-1 to S-203; M-1 to N-202; M-1 to L-201; M-1 to E- 200 M--11 to F-199; M-1 to S-198; M-1 to T-197; M-1 to N-196; M-1 to S-195; M-1 to V- 194 M--11 to E-193; M-1 to S-192; M-1 to F-191; M-1 to N-190; M-1 to A-189; M-1 to G- 188 M--11 to Q-187; M-1 to D-186; M-1 to V-185; M-1 to Q-184; M-1 to S-183; M-1 to A- 182 ,M--11 to W-181; M-1 to V-180; M-1 to V-179; M-1 to T-178; M-1 to P-177; M-1 to Q- 176 M--11 to P-175; M-1 to F-174; M-1 to W-173; M-1 to R-172; M-1 to P-171; M-1 to A- 170 M--11 to E-169; M-1 to C-168; M-1 to R-167; M-1 to L-166; M-1 to T-165; M-1 to E- 164 M--11 to S-163; M-1 to S-162; M-1 to A-161; M-1 to N-160; M-1 to Y-159; M-1 to D- 158 M--11 to V-157; M-1 to N-156; M-1 to V-155; M-1 to E-154; M-1 to P-153; M-1 to M- 152 M--11 to S-151; M-1 to F-150; M-1 to A-149; M-1 to G-148; M-1 to T-147; M-1 to K- 146 M--11 to Y-145; M-1 to E-144; M-1 to L-143; M-1 to N-142; M-1 to A-141; M-1 to N- 140 M--11 to G-139; M-1 to K-138; M-1 to G-137; M-1 to K-136; M-1 to S-135; M-1 to T- 134 M--11 to 1-133; M-1 to 1-132; M-1 to Y-131; M-1 to C-130; M-1 to K-129; M-1 to Y-128; M-1 to T-127; M-1 to G-126; M-1 to A-125; M-1 to D-124; M-1 to T-123; M-1 to L-122; M- 1 to Q-121; M-1 to V-120; M-1 to N-119; M-1 to K-118; M-1 to L-117; M-1 to R-116; M-1 to L-115; M-1 to S-114; M-1 to A-113; M-1 to N-112; M-1 to G-111; M-1 to V-110; M-1 to 1-109; M-1 to V-108; M-1 to Q-107; M-1 to D-106; M-1 to A-105; M-1 to F-104; M-1 to V- 103; M-1 to A-102; M-1 to T-101; M-1 to R-100; M-1 to G-99; M-1 to R-98; M-1 to F-97; M-1 to M-96; M-1 to E-95; M-1 to D-94; M-1 to Q-93; M-1 to E-92; M-1 to S-91; M-1 to L- 90; M-1 to E-89; M-1 to D-88; M-1 to K-87; M-1 to G-86; M-1 to E-85; M-1 to K-84; M-1 to F-83; M-1 to E-82; M-1 to H-81; M-1 to N-80; M-1 to L-79; M-1 to G-78; M-1 to L-77; M-1 to N-76; M-1 to G-75; M-1 to E-74; M-1 to K-73; M-1 to L-72; M-1 to W-71; M-1 to Q-70; M-1 to 1-69; M-1 to N-68; M-1 to 1-67; M-1 to D-66; M-1 to S-65; M-1 to L-64; M-1 to K- 63; M-1 to 1-62; M-1 to D-61; M-1 to P-60; M-1 to E-59; M-1 to F-58; M-1 to T-57; M-1 to C-56; M-1 to S-55; M-1 to L-54; M-1 to 1-53; M-1 to G-52; M-1 to D-51; M-1 to E-50; M-1 to G-49; M-1 to 1-48; M-1 to Ν-47; M-1 to G-46; M-1 to A-45; M-1 to S-44; M-1 to A-43; M-1 to V-42; M-1 to T-41; M-1 to T-40; M-1 to V-39; M-1 to T-38; M-1 to 1-37; M-1 to S- 36; M-1 to H-35; M-1 to R-34; M-1 to G-33; M-1 to S-32; M-1 to 1-31; M-1 to G-30; M-1 to F-29; M-1 to G-28; M-1 to 1-27; M-1 to 1-26; M-1 to L-25; M-1 to A-24; M-1 to 1-23; M-1 to A-22; M-1 to G-21; M-1 to A-20; M-1 to L-19; M-1 to 1-18; M-1 to 1-17; M-1 to 1-16; M-1 to 1-15; M-1 to S-14; M-1 to 1-13; M-1 to 1-12; M-1 to S-l l; M-1 to W-10; M-1 to F-9; M-1 to L-8; and/or M-1 to 1-7 of SEQ DD NO: 14. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [72] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protein results in modification of loss of one or more biological functions ofthe protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to induce antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority of the residues of the complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or iinmunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [73] More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of N-terminal deletions of the mature extracellular portion of the B7-H8 protein (SEQ DD NO: 28): 1-26 to N-255; 1-27 to N-255; G-28 to N-255; F-29 to N-255; G-30 to N-255; 1-31 to N- 255; S-32 to N-255; G-33 to N-255; R-34 to N-255; H-35 to N-255; S-36 to N-255; 1-37 to N-255; T-38 to N-255; V-39 to N-255; T-40 to N-255; T-41 to N-255; V-42 to N-255; A-43 to N-255; S-44 to N-255; A-45 to N-255; G-46 to N-255; N-47 to N-255; 1-48 to N-255; G- 49 to N-255; E-50 to N-255; D-51 to N-255; G-52 to N-255; 1-53 to N-255; L-54 to N-255 S-55 to N-255; C-56 to N-255; T-57 to N-255; F-58 to N-255; E-59 to N-255; P-60 to N-255 D-61 to N-255; 1-62 to N-255; K-63 to N-255; L-64 to N-255; S-65 to N-255; D-66 to N-255 1-67 to N-255; N-68 to Ν-255; 1-69 to N-255; Q-70 to N-255; W-71 to N-255; L-72 to N-255 K-73 to N-255; E-74 to N-255; G-75 to N-255; N-76 to Ν-255; L-77 to Ν-255; G-78 to Ν- 255; L-79 to Ν-255; N-80 to Ν-255; H-81 to Ν-255; E-82 to Ν-255; F-83 to Ν-255; K-84 to Ν-255; E-85 to Ν-255; G-86 to Ν-255; K-87 to Ν-255; D-88 to Ν-255; E-89 to Ν-255; L-90 to Ν-255; S-91 to Ν-255; E-92 to Ν-255; Q-93 to Ν-255; D-94 to Ν-255; E-95 to Ν-255; M- 96 to Ν-255; F-97 to Ν-255; R-98 to Ν-255; G-99 to Ν-255; R-100 to Ν-255; T-101 to Ν- 255; A-102 to Ν-255; N-103 to Ν-255; F-104to Ν-255; A-105 to Ν-255; D-106 to Ν-255; Q- 107 to Ν-255; V-108 to Ν-255; 1-109 to Ν-255; N-110 to Ν-255; G-111 to Ν-255; Ν-112 to N-255; A-113 to N-255; S-114 to N-255; L-115 to N-255; R-116 to N-255; L-117 to N-255; K-118 to N-255; N-119 to N-255; N-120 to Ν-255; Q-121 to Ν-255; L-122 to Ν-255; T-123 to Ν-255; D-124 to Ν-255; A-125 to Ν-255; G-126 to Ν-255; T-127 to Ν-255; Y-128 to Ν- 255; K-129 to Ν-255; C-130 to Ν-255; Y-131 to Ν-255; 1-132 to Ν-255; 1-133 to Ν-255; T- 134 to Ν-255; S-135 to Ν-255; K-136 to Ν-255; G-137 to Ν-255; K-138 to Ν-255; G-139 to Ν-255; Ν-140 to N-255; A-141 to N-255; N-142 to N-255; L-143 to N-255; E-144 to N-255; Y-145 to N-255; K-146 to N-255; T-147 to N-255; G-148 to N-255; A-149 to N-255; F-150 to N-255; S-151 to N-255; M-152 to N-255; P-153 to N-255; E-154 to N-255; V-155 to N- 255; N-156 to N-255; V-157 to N-255; D-158 to N-255; Y-159 to N-255; N-160 to N-255; A-161 to N-255; S-162 to N-255; S-163 to N-255; E-164 to N-255; T-165 to N-255; L-166 to N-255; R-167 to N-255; C-168 to N-255; E-169 to N-255; A-170 to N-255; P-171 to N-255; R-172 to N-255; W-173 to N-255; F-174 to N-255; P-175 to N-255; Q-176 to N-255; P-177 to N-255; T-178 to N-255; V-179 to N-255; V-180 to N-255; W-181 to N-255; A-182 to N- 255; S-183 to N-255; Q-184 to N-255; N-185 to Ν-255; D-186 to Ν-255; Q-187 to Ν-255; G- 188 to Ν-255; A-189 to Ν-255; Ν-190 to N-255; F-191 to N-255; S-192 to N-255; E-193 to N-255; N-194 to Ν-255; S-195 to Ν-255; Ν-196 to N-255; T-197 to N-255; S-198 to N-255; F-199 to N-255; E-200 to N-255; L-201 to N-255; N-202 to N-255; S-203 to N-255; E-204 to N-255; N-205 to N-255; V-206 to N-255; T-207 to N-255; M-208 to N-255; K-209 to N-255; V-210 to N-255; V-211 to N-255; S-212 to N-255; V-213 to N-255; L-214 to N-255; Y-215 to N-255; N-216 to N-255; V-217 to N-255; T-218 to N-255; 1-219 to N-255; N-220 to N- 255; N-221 to N-255; T-222 to N-255; Y-223 to N-255; S-224 to N-255; C-225 to N-255; M- 226 to N-255; 1-227 to N-255; E-228 to N-255; N-229 to N-255; D-230 to N-255; 1-231 to N- 255; A-232 to N-255; K-233 to N-255; A-234 to N-255; T-235 to N-255; G-236 to N-255; D- 237 to N-255; 1-238 to N-255; K-239 to N-255; V-240 to N-255; T-241 to N-255; E-242 to N-255; S-243 to N-255; E-244 to N-255; 1-245 to N-255; K-246 to N-255; R-247 to N-255; R-248 to N-255; S-249 to N-255; and/or H-250 to N-255 of SEQ ID NO: 14. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 91%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [74] Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of C-terminal deletions of the mature extracellular portion of the B7-H8 protein (SEQ DD NO: 28): L-25 to L-254; L-25 to L-253; L-25 to Q-252; L-25 to L-251; L-25 to H-250; L-25 to S- 249; L-25 to R-248; L-25 to R-247; L-25 to K-246; L-25 to 1-245; L-25 to E-244; L-25 to S- 243; L-25 to E-242; L-25 to T-241; L-25 to V-240; L-25 to K-239; L-25 to 1-238; L-25 to D- 237; L-25 to G-236; L-25 to T-235; L-25 to A-234; L-25 to K-233; L-25 to A-232; L-25 to I- 231; L-25 to D-230; L-25 to N-229; L-25 to E-228 L-25 to 1-227; L-25 to M-226; L-25 to C- 225; L-25 to S-224; L-25 to Y-223; L-25 to T-222 L-25 to N-221; L-25 to N-220; L-25 to I- 219; L-25 to T-218; L-25 to V-217; L-25 to N-216 L-25 to Y-215; L-25 to L-214; L-25 to V- 213; L-25 to S-212; L-25 to V-211; L-25 to V-210; L-25 to K-209; L-25 to M-208; L-25 to L-25 to N-205; L-25 to E-204; L-25 to S-203; L-25 to N-202; L-25 to L-25 to F-199; L-25 to S-198; L-25 to T-197; L-25 to N-196; L-25 to L-25 to E-193; L-25 to S-192; L-25 to F-191; L-25 to N-190; L-25 to L-25 to Q-187; L-25 to D-186; L-25 to V-185; L-25 to Q-184; L-25 to L-25 to W-181; L-25 to V-180; L-25 to V-179; L-25 to T-178; L-25 to L-25 to P-175; L-25 to F-174; L-25 to W-173; L-25 to R-172; L-25 to L-25 to E-169; L-25 to C-168; L-25 to R-167; L-25 to L-166; L-25 to L-25 to S-163; L-25 to S-162; L-25 to A-161; L-25 to N-160; L-25 to L-25 to V-157; L-25 to N-156; L-25 to V-155; L-25 to E-154; L-25 to L-25 to S-151; L-25 to F-150; L-25 to A-149; L-25 to G-148; L-25 to L-25 to Y-145; L-25 to E-144; L-25 to L-143; L-25 to N-142; L-25 to L-25 to G-139; L-25 to K-138; L-25 to G-137; L-25 to K-136; L-25 to L-25 to 1-133; L-25 to 1-132; L-25 to Y-131; L-25 to C-130; L-25 to L-25 to T-127; L-25 to G-126; L-25 to A-125; L-25 to D-124; L-25 to L-25 to Q-121; L-25 to N-120; L-25 to Ν-119; L-25 to K-118; L-25 to L-25 to L-115; L-25 to S-114; L-25 to A-113; L-25 to N-112; L-25 to L-25 to 1-109; L-25 to V-108; L-25 to Q-107; L-25 to D-106; L-25 to L-25 to V-103; L-25 to A-102; L-25 to T-101; L-25 to R-100; L-25 to G-99; L-25 to R-98; L-25 to F-97; L-25 to M-96; L-25 to E-95; L-25 to D-94; L-25 to Q-93; L-25 to E-92; L-25 to S-91; L-25 to L-90; L-25 to E-89; L-25 to D-88; L-25 to K-87; L-25 to G-86; L-25 to E-85; L-25 to K-84; L-25 to F-83; L-25 to E-82; L-25 to H-81; L-25 to V-80; L-25 to L-79; L-25 to G-78; L-25 to L-77; L-25 to V-76; L-25 to G-75; L-25 to E-74; L-25 to K-73; L-25 to L-72; L-25 to W-71; L-25 to Q-70; L-25 to 1-69; L-25 to V-68; L-25 to 1-67; L-25 to D-66; L-25 to S-65; L-25 to L-64; L-25 to K-63; L-25 to 1-62; L-25 to D-61; L-25 to P-60; L-25 to E-59; L-25 to F-58; L-25 to T-57; L-25 to C-56; L-25 to S-55; L-25 to L-54; L- 25 to 1-53; L-25 to G-52; L-25 to D-51; L-25 to E-50; L-25 to G-49; L-25 to 1-48; L-25 to N- 47; L-25 to G-46; L-25 to A-45; L-25 to S-44; L-25 to A-43; L-25 to V-42; L-25 to T-41; L- 25 to T-40; L-25 to V-39; L-25 to T-38; L-25 to 1-37; L-25 to S-36; L-25 to H-35; L-25 to R- 34; L-25 to G-33; L-25 to S-32; and/or L-25 to 1-31 of SEQ DD NO: 14. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 91%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [75] In addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of SEQ DD NO: 14, where n and m are integers as described above. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [76] The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% identical to a polypeptide sequence set forth herein as m-n. In preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [77] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 276 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 276 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [78] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [79] It has been discovered that this gene is expressed in dendritic cells, T cells, and infant brain tissue. [80] Polynucleotides, translation products and antibodies corresponding to this gene are useful as reagents for differential identification of immune system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly involving T cells, in addition to other immune system cells such as dendritic cells, neutrophils, and leukocytes, as well as for diseases and/or disorders of the neural system. Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification ofthe tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity of the B7-H8 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activites as are disclosed herein (e.g. T cell modulated activities). [81] For a number of disorders of the above tissues or cells, particularly of the immune system, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., immune, neural, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [82] The tissue distribution in immune cells (e.g., T-cells, dendritic cells), and the homology to members of the B7 family of ligands, indicates that the polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells, neutrophils, dendritic cells, leukocytes, and other immune system cells. In particular, the translation product ofthe B7-H8 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation ofthe expression of particular cytokines, for example. [83] More generally, the tissue distribution in immune system cells indicates that this gene product may be involved in the regulation of cytokine production, antigen presentation, or other processes that may also suggest a usefulness in the treatment of cancer (e.g. by boosting immune responses). Since the gene is expressed in cells of immune system origin, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or i munotherapy targets for immune system cells and tissues. [84] Polynucleotides, translation products and antibodies corresponding to this gene may be also used as an agent for immunological disorders including arthritis, asthma, immune deficiency diseases such as ADDS, leukemia, rheumatoid arthritis, inflammatory bowel disease, sepsis, acne, and psoriasis. In addition, this gene product may have commercial utility in the expansion of stem cells and committed progenitors of various blood lineages, and in the differentiation and/or proliferation of various cell types. Furthermore, the protein may also be used to determine biological activity, to raise antibodies, as tissue markers, to isolate cognate ligands or receptors, to identify agents that modulate their interactions, in addition to its use as a nutritional supplement. [85] Expression within infant brain tissue suggests that polynucleotides, translation products and antibodies corresponding to this clone are useful for the detection and/or treatment of neurodegenerative disease states and behavioural disorders such as Alzheimers Disease, Parkinsons Disease, Huntingtons Disease, Tourette Syndrome, schizophrenia, mania, dementia, paranoia, obsessive compulsive disorder, panic disorder, learning disabilities, ALS, psychoses, autism, and altered behaviors, including disorders in feeding, sleep patterns, balance, and perception. In addition, the gene or gene product may also play a role in the treatment and/or detection of developmental disorders associated with the developing embryo, or sexually-linked disorders. Additionally, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. FEATURES OF PROTEIN ENCODED BY GENE NO: 2 [86] For purposes of this application, this gene and its corresponding translation product are known as the B7-H7 gene and B7-H7 protein. This protein is believed to reside as a cell- surface molecule, and the transmembrane domain of this protem is believed to approximately embody the following preferred amino acid residues: PTWLLHJEffSCIlAFlFLATNlALRKQLC (SEQ DD NO: 30). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these peptides. As one skilled in the art would understand, the transmembrane domain was predicted using computer analysis, and the transmembrane domain may vary by one, two, three, four, five, six, seven, eight, nine, and/or ten amino acids from the N and C- termini ofthe predicted transmembrane domain. [87] The B7-H7 gene shares sequence homology with members of the B7 family of ligands (i.e., B7-H1 (See Genbank Accession AAF25807)). These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation and death of T cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation ofthe T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists such as antibodies or small molecules directed against the B7-H7 gene are useful for treating T cell mediated immune system disorders, as well as disorders of other immune system cells, such as for example, neutrophils, macrophage, and leukocytes. [88] Preferred polypeptides of the present invention comprise, or alternatively consist of, one, two, three, four, five, six, seven, or all seven ofthe immunogenic epitopes of the B7- H7 protein shown in SEQ DD NO: 15 as residues: Lys-61 to Arg-72, Arg-95 to Tyr-100, Ala- 121 to Ile-126, Asn-163 to Gly-172, Lys-183 to Asn-189, Ser-211 to His-218, and Leu-251 to Nal-269. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [89] In additional nonexclusive embodiments, polypeptides of the invention comprise, or alternatively consist of, an amino acid sequence selected from the group consisting of: [90] The extracellular domain of the B7-H7 protein: MIFLLLMLSLELQLHQIAALFTNTVPKELYIIEHGSNVTLECNFDTGSHVNLGAITASL QKVENDTSPHRERATLLEEQLPLGKASFHIPQVQVRDEGQYQCπiYGVAWDYKYLT LKVKASYRKINTHILKVPETDEVELTCQATGYPLAEVSWPNVSVPANTSHSRTPEGL YQVTSVLRLKPPPGRNFSCVFWNTHVRELTLASIDLQSQMEPRTH (SEQ DD NO: 31), [91] The mature extracellular domain of the B7-H7 protein: LFTVTVPKELYEEHGSNVTLECNFDTGSHVNLGAITASLQKVENDTSPHRERATLLEE QLPLGKASFHIPQVQVPJDEGQYQCIDYGVAWDYKYLTLKVKASYRKINTHILKVPET DEVELTCQATGYPLAEVSWPNVSVPANTSHSRTPEGLYQVTSVLRLKPPPGRNFSCV FWNTHNRELTLASDDLQSQMEPRTH (SEQ DD NO: 32), and/or [92] The leader sequence of the B7-H7 protein: MEFLLLMLSLELQLHQIAA (SEQ DD NO: 33). [93] Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [94] In specific embodiments, polypeptides ofthe invention comprise, or alternatively consist of, an amino acid sequence selected from the pair of immunoglobulin-like regions of the B7-H7 protein: ELYΠEHGSNVTLECNFDTGSFΓVNLGAITASLQKVENDTSPHRERATLLEEQLPLGKA SFHIPQVQVRDEGQYQCDJYGVAWDYKYLTLKVK (SEQ ED NO: 34) and/or SYRKΓNTHILKVPETDEVELTCQATGYPLAEVSWPNVSVPANTSHSRTPEGLYQVTSV LRLKPPPGRNFSCVFWNTHVRELTLASDDLQSQMEP (SEQ DD NO: 35). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [95] Also preferred are polypeptides comprising, or alternatively consisting of, fragments of the mature extracellular portion of the B7-H7 protein demonstrating functional activity (SEQ DD NO: 32). Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [96] By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H7 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H7 polypeptide for binding) to an anti-B7-H7 antibody], immunogenicity (ability to generate antibody which binds to a B7-H7 polypeptide), ability to form multimers with B7-H7 polypeptides of the invention, and ability to bind to a receptor for a B7-H7 polypeptide. [97] Figures 3A-C show the nucleotide (SEQ ED NO: 3) and deduced amino acid sequence (SEQ DD NO: 15) corresponding to this gene. [98] Figure 4 shows an analysis of the amino acid sequence (SEQ DD NO: 15). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 4 are also represented in tabular form in Table 4. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XIV. The column headings refer to the following features ofthe amino acid sequence presented in Figure 4, and Table 4: "Res": amino acid residue of SEQ DD NO: 15 and Figures 3A-C; "Position": position of the corresponding residue within SEQ DD NO: 15 and Figures 3A-C; I: Alpha, Regions - Garnier-Robson; II: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier-Robson; IN: Beta, Regions - Chou-Fasman; N: Turn, Regions - Garnier-Robson; VI: Turn, Regions - Chou-Fasman; NIL Coil, Regions - Garnier-Robson; ND3: Hydrophilicity Plot - Kyte- Doolittle; IX: Hydrophobicity Plot - Hopp-Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; Xu: Flexible Regions - Karplus- Schulz; XDI: Antigenic Index - Jameson- Wolf; and XIN: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more of the following regions: alpha-helix and alpha-helix forming regions ("alpha-regions"), beta-sheet and beta-sheet forming regions ("beta- regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes ofthe protein set forth in Figure 4 and/or Table 4, as described above, was generated using the various modules and algorithms ofthe DΝA*STAR set on default parameters, hi a preferred embodiment, the data presented in columns Nfll, DC, XEQ, and XIN of Table 4 can be used to determine regions of the protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns NDL EX, XDI, and/or XIN by choosing values which represent regions ofthe polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in wliich antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 4, but may, as shown in Table 4, be represented or identified by using tabular representations of the data presented in Figure 4. The DΝA*STAR computer algorithm used to generate Figure 4 (set on the original default parameters) was used to present the data in Figure 4 in a tabular format (See Table 4). The tabular format of the data in Figure 4 (See Table 4) is used to easily determine specific boundaries of a preferred region. [99] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ DD NO: 3, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt, still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 3. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ DD NO: 3. In this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ DD NO: 3, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. In additional embodiments, the polynucleotides ofthe invention encode functional attributes ofthe corresponding protein. [100] Preferred polypeptide fragments of the invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the polypeptide can be described by the general formula m-283 where m is an integer from 2 to 278, where m corresponds to the position of the amino acid residue identified in SEQ DD NO: 15. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: 1-2 to G-283; F-3 to G-283; L-4 to G-283; L-5 to G-283; L-6 to G-283; M-7 to G-283; L-8 to G-283; S-9 to G- 283; L-10 to G-283; E-ll to G-283; L-12 to G-283; Q-13 to G-283; L-14 to G-283; H-15 to G-283; Q-16 to G-283; 1-17 to G-283; A-18 to G-283; A-19 to G-283; L-20 to G-283; F-21 to G-283; T-22 to G-283; V-23 to G-283; T-24 to G-283; V-25 to G-283; P-26 to G-283; K-27 to G-283; E-28 to G-283; L-29 to G-283; Y-30 to G-283; 1-31 to G-283; 1-32 to G-283; E-33 to G-283; H-34 to G-283; G-35 to G-283; S-36 to G-283; N-37 to G-283; V-38 to G-283; T- 39 to G-283; L-40 to G-283; E-41 to G-283; C-42 to G-283; N-43 to G-283; F-44 to G-283; D-45 to G-283; T-46 to G-283; G-47 to G-283; S-48 to G-283; H-49 to G-283; V-50 to G- 283; N-51 to G-283; L-52 to G-283; G-53 to G-283; A-54 to G-283; 1-55 to G-283; T-56 to G-283; A-57 to G-283; S-58 to G-283; L-59 to G-283; Q-60 to G-283; K-61 to G-283; V-62 to G-283; E-63 to G-283; N-64 to G-283; D-65 to G-283; T-66 to G-283; S-67 to G-283; P- 68 to G-283; H-69 to G-283; R-70 to G-283; E-71 to G-283; R-72 to G-283; A-73 to G-283; T-74 to G-283; L-75 to G-283; L-76 to G-283; E-77 to G-283; E-78 to G-283; Q-79 to G- 283; L-80 to G-283; P-81 to G-283; L-82 to G-283; G-83 to G-283; K-84 to G-283; A-85 to G-283; S-86 to G-283; F-87 to G-283; H-88 to G-283; 1-89 to G-283; P-90 to G-283; Q-91 to G-283; V-92 to G-283; Q-93 to G-283; V-94 to G-283; R-95 to G-283; D-96 to G-283; E-97 to G-283; G-98 to G-283; Q-99 to G-283; Y-100 to G-283; Q-101 to G-283; C-102 to G-283; 1-103 to G-283; 1-104 to G-283; 1-105 to G-283; Y-106 to G-283; G-107 to G-283; V-108 to G-283; A-109 to G-283; W-110 to G-283; D-lll to G-283; Y-112 to G-283; K-113 to G- 283; Y-114 to G-283; L-115 to G-283; T-116 to G-283; L-117 to G-283; K-118 to G-283; V- 119 to G-283; K-120 to G-283; A-121 to G-283; S-122 to G-283; Y-123 to G-283; R-124 to G-283; K-125 to G-283; 1-126 to G-283; N-127 to G-283; T-128 to G-283; H-129 to G-283; 1-130 to G-283; L-131 to G-283; K-132 to G-283; N-133 to G-283; P-134 to G-283; E-135 to G-283; T-136 to G-283; D-137 to G-283; E-138 to G-283; N-139 to G-283; E-140 to G-283; L-141 to G-283; T-142 to G-283; C-143 to G-283; Q-144 to G-283; A-145 to G-283; T-146 to G-283; G-147 to G-283; Y-148 to G-283; P-149 to G-283; L-150 to G-283; A-151 to G- 283; E-152 to G-283; V-153 to G-283; S-154 to G-283; W-155 to G-283; P-156 to G-283; Ν- 157 to G-283; V-158 to G-283; S-159 to G-283; V-160 to G-283; P-161 to G-283; A-162 to G-283; N-163 to G-283; T-164 to G-283; S-165 to G-283; H-166 to G-283; S-167 to G-283; R-168 to G-283; T-169 to G-283; P-170 to G-283; E-171 to G-283; G-172 to G-283; L-173 to G-283; Y-174 to G-283; Q-175 to G-283; V-176 to G-283; T-177 to G-283; S-178 to G-283; V-179 to G-283; L-180 to G-283; R-181 to G-283; L-182 to G-283; K-183 to G-283; P-184 to G-283; P-185 to G-283; P-186 to G-283; G-187 to G-283; R-188 to G-283; N-189 to G- 283; F-190 to G-283; S-191 to G-283; C-192 to G-283; V-193 to G-283; F-194 to G-283; W- 195 to G-283; N-196 to G-283; T-197 to G-283; H-198 to G-283; V-199 to G-283; R-200 to G-283; E-201 to G-283; L-202 to G-283; T-203 to G-283; L-204 to G-283; A-205 to G-283; S-206 to G-283; 1-207 to G-283; D-208 to G-283; L-209 to G-283; Q-210 to G-283; S-211 to G-283; Q-212 to G-283; M-213 to G-283; E-214 to G-283; P-215 to G-283; R-216 to G-283; T-217 to G-283; H-218 to G-283; P-219 to G-283; T-220 to G-283; W-221 to G-283; L-222 to G-283; L-223 to G-283; H-224 to G-283; 1-225 to G-283; F-226 to G-283; 1-227 to G-283; P-228 to G-283; S-229 to G-283; C-230 to G-283; 1-231 to G-283; 1-232 to G-283; A-233 to G-283; F-234 to G-283; 1-235 to G-283; F-236 to G-283; 1-237 to G-283; A-238 to G-283; T- 239 to G-283; V-240 to G-283; 1-241 to G-283; A-242 to G-283; L-243 to G-283; R-244 to G-283; K-245 to G-283; Q-246 to G-283; L-247 to G-283; C-248 to G-283; Q-249 to G-283; K-250 to G-283; L-251 to G-283; Y-252 to G-283; S-253 to G-283; S-254 to G-283; K-255 to G-283; D-256 to G-283; T-257 to G-283; T-258 to G-283; K-259 to G-283; R-260 to G- 283; P-261 to G-283; V-262 to G-283; T-263 to G-283; T-264 to G-283; T-265 to G-283; K- 266 to G-283; R-267 to G-283; E-268 to G-283; V-269 to G-283; N-270 to G-283; S-271 to G-283; A-272 to G-283; V-273 to G-283; N-274 to G-283; L-275 to G-283; N-276 to G-283; L-277 to G-283; and/or W-278 to G-283 of SEQ DD NO: 15. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [101] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 3A-C (SEQ DD NO: 15), as described by the general formula 1- n, where n is an integer from 7 to 282, where n corresponds to the position ofthe amino acid residue identified in SEQ DD NO: 15. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group of C-terminal deletions: M-1 to P-282; M-1 to E-281; M-1 to W-280; M-1 to S-279; M-1 to W-278; M-1 to L-277; M-1 to N-276; M-1 to L-275; M-1 to N-274; M-1 to V-273; M-1 to A-272; M-1 to S-271; M-1 to N-270; M-1 to V-269; M-1 to E- 268; M-1 to R-267; M-1 to K-266; M-1 to T-265; M-1 to T-264; M-1 to T-263; M-1 to V- 262; M-1 to P-261; M-1 to R-260; M-1 to K-259; M-1 to T-258; M-1 to T-257; M-1 to D- 256; M-1 to K-255; M-1 to S-254; M-1 to S-253; M-1 to Y-252; M-1 to L-251; M-1 to K- 250; M-1 to Q-249; M-1 to C-248; M-1 to L-247; M-1 to Q-246; M-1 to K-245; M-1 to R- 244; M-1 to L-243; M-1 to A-242; M-1 to 1-241; M-1 to V-240; M-1 to T-239; M-1 to A- 238; M-1 to 1-237; M-1 to F-236; M-1 to 1-235; M-1 to F-234; M-1 to A-233; M-1 to 1-232; M-1 to 1-231; M-1 to C-230; M-1 to S-229; M-1 to P-228; M-1 to 1-227; M-1 to F-226; M-1 to 1-225; M-1 to H-224; M-1 to L-223; M-1 to L-222; M-1 to W-221; M-1 to T-220; M-1 to P-219; M-1 to H-218; M-1 to T-217; M-1 to R-216; M-1 to P-215; M-1 to E-214; M-1 to M- 213; M-1 to Q-212; M-1 to S-211; M-1 to Q-210; M-1 to L-209; M-1 to D-208; M-1 to 1-207; M-1 to S-206; M-1 to A-205; M-1 to L-204; M-1 to T-203; M-1 to L-202; M-1 to E-201; M-1 to R-200; M-1 to V-199; M-1 to H-198; M-1 to T-197; M-1 to N-196; M-1 to W-195; M-1 to F-194; M-1 to V-193; M-1 to C-192; M-1 to S-191; M-1 to F-190; M-1 to N-189; M-1 to R- 188; M-1 to G-187; M-1 to P-186; M-1 to P-185; M-1 to P-184; M-1 to K-183; M-1 to L- 182; M-1 to R-181; M-1 to L-180; M-1 to V-179; M-1 to S-178; M-1 to T-177; M-1 to V- 176; M-1 to Q-175; M-1 to Y-174; M-1 to L-173; M-1 to G-172; M-1 to E-171; M-1 to P- 170; M-1 to T-169; M-1 to R-168; M-1 to S-167; M-1 to H-166; M-1 to S-165; M-1 to T- 164; M-1 to N-163; M-1 to A-162; M-1 to P-161; M-1 to V-160; M-1 to S-159; M-1 to V- 158; M-1 to N-157; M-1 to P-156; M-1 to W-155; M-1 to S-154; M-1 to V-153; M-1 to E- 152; M-1 to A-151; M-1 to L-150; M-1 to P-149; M-1 to Y-148; M-1 to G-147; M-1 to T- 146; M-1 to A-145; M-1 to Q-144; M-1 to C-143; M-1 to T-142; M-1 to L-141; M-1 to E- 140; M-1 to V-139; M-1 to E-138; M-1 to D-137; M-1 to T-136; M-1 to E-135; M-1 to P- 134; M-1 to V-133; M-1 to K-132; M-1 to L-131; M-1 to 1-130; M-1 to H-129; M-1 to T- 128; M-1 to N-127; M-1 to 1-126; M-1 to K-125; M-1 to R-124; M-1 to Y-123; M-1 to S- 122; M-1 to A-121; M-1 to K-120; M-1 to V-119; M-1 to K-118; M-1 to L-117; M-1 to T- 116; M-1 to L-115; M-1 to Y-114; M-1 to K-113; M-1 to Y-112; M-1 to D-lll; M-1 to W- 110; M-1 to A-109; M-1 to V-108; M-1 to G-107; M-1 to Y-106; M-1 to 1-105; M-1 to 1-104; M-1 to 1-103; M-1 to C-102; M-1 to Q-101; M-1 to Y-100; M-1 to Q-99; M-1 to G-98; M-1 to E-97; M-1 to D-96; M-1 to R-95; M-1 to V-94; M-1 to Q-93; M-1 to V-92; M-1 to Q-91; M-1 to P-90; M-1 to 1-89; M-1 to H-88; M-1 to F-87; M-1 to S-86; M-1 to A-85; M-1 to K- 84; M-1 to G-83; M-1 to L-82; M-1 to P-81; M-1 to L-80; M-1 to Q-79; M-1 to E-78; M-1 to E-77; M-1 to L-76; M-1 to L-75; M-1 to T-74; M-1 to A-73; M-1 to R-72; M-1 to E-71; M-1 to R-70; M-1 to H-69; M-1 to P-68; M-1 to S-67; M-1 to T-66; M-1 to D-65; M-1 to N-64; M-1 to E-63; M-1 to V-62; M-1 to K-61; M-1 to Q-60; M-1 to L-59; M-1 to S-58; M-1 to A- 57; M-1 to T-56; M-1 to 1-55; M-1 to A-54; M-1 to G-53; M-1 to L-52; M-1 to N-51; M-1 to V-50; M-1 to H-49; M-1 to S-48; M-1 to G-47; M-1 to T-46; M-1 to D-45; M-1 to F-44; M-1 to N-43; M-1 to C-42; M-1 to E-41; M-1 to L-40; M-1 to T-39; M-1 to V-38; M-1 to N-37; M-1 to S-36; M-1 to G-35; M-1 to H-34; M-1 to E-33; M-1 to 1-32; M-1 to 1-31; M-1 to Y- 30; M-1 to L-29; M-1 to E-28; M-1 to K-27; M-1 to P-26; M-1 to V-25; M-1 to T-24; M-1 to V-23; M-1 to T-22; M-1 to F-21; M-1 to L-20; M-1 to A-19; M-1 to A-18; M-1 to 1-17; M-1 to Q-16; M-1 to H-15; M-1 to L-14; M-1 to Q-13; M-1 to L-12; M-1 to E-ll; M-1 to L-10; M-1 to S-9; M-1 to L-8; and/or M-1 to M-7 of SEQ DD NO: 15. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [102] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protein results in modification of loss of one or more biological functions ofthe protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to generate antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority of the residues of the complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [103] More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of N-terminal deletions of the mature extracellular portion of the B7-H7 protein (SEQ DD NO: 32): F-21 to H-218; T-22 to H-218; V-23 to H-218; T-24 to H-218; V-25 to H-218; P-26 to H-218; K-27 to H-218; E-28 to H-218; L-29 to H-218; Y-30 to H-218; 1-31 to H-218; 1-32 to H-218; E-33 to H-218; H-34 to H-218; G-35 to H-218; S-36 to H-218; N-37 to H-218; V-38 to H-218; T-39 to H-218; L-40 to H-218; E-41 to H-218; C-42 to H-218; N-43 to H-218; F- 44 to H-218; D-45 to H-218; T-46 to H-218; G-47 to H-218; S-48 to H-218; H-49 to H-218; V-50 to H-218; N-51 to H-218; L-52 to H-218; G-53 to H-218; A-54 to H-218; 1-55 to H- 218; T-56 to H-218; A-57 to H-218; S-58 to H-218; L-59 to H-218; Q-60 to H-218; K-61 to H-218; V-62 to H-218; E-63 to H-218; N-64 to H-218; D-65 to H-218; T-66 to H-218; S-67 to H-218; P-68 to H-218; H-69 to H-218; R-70 to H-218; E-71 to H-218; R-72 to H-218; A- 73 to H-218; T-74 to H-218; L-75 to H-218; L-76 to H-218; E-77 to H-218; E-78 to H-218; Q-79 to H-218; L-80 to H-218; P-81 to H-218; L-82 to H-218; G-83 to H-218; K-84 to H- 218; A-85 to H-218; S-86 to H-218; F-87 to H-218; H-88 to H-218; 1-89 to H-218; P-90 to H- 218; Q-91 to H-218; V-92 to H-218; Q-93 to H-218; V-94 to H-218; R-95 to H-218; D-96 to H-218; E-97 to H-218; G-98 to H-218; Q-99 to H-218; Y-100 to H-218; Q-101 to H-218; C- 102 to H-218; 1-103 to H-218; 1-104 to H-218; 1-105 to H-218; Y-106 to H-218; G-107 to H- 218; V-108 to H-218; A-109 to H-218; W-110 to H-218; D-lll to H-218; Y-112 to H-218; K-113 to H-218; Y-114 to H-218; L-115 to H-218; T-116 to H-218; L-117 to H-218; K-118 to H-218; V-119 to H-218; K-120 to H-218; A-121 to H-218; S-122 to H-218; Y-123 to H- 218; R-124 to H-218; K-125 to H-218; 1-126 to H-218; N-127 to H-218; T-128 to H-218; H- 129 to H-218; 1-130 to H-218; L-131 to H-218; K-132 to H-218; V-133 to H-218; P-134 to H-218; E-135 to H-218; T-136 to H-218; D-137 to H-218; E-138 to H-218; V-139 to H-218; E-140 to H-218; L-141 to H-218; T-142 to H-218; C-143 to H-218; Q-144 to H-218; A-145 to H-218; T-146 to H-218; G-147 to H-218; Y-148 to H-218; P-149 to H-218; L-150 to H- 218; A-151 to H-218; E-152 to H-218; V-153 to H-218; S-154 to H-218; W-155 to H-218; P- 156 to H-218; N-157 to H-218; V-158 to H-218; S-159 to H-218; V-160 to H-218; P-161 to H-218; A-162 to H-218; N-163 to H-218; T-164 to H-218; S-165 to H-218; H-166 to H-218; S-167 to H-218; R-168 to H-218; T-169 to H-218; P-170 to H-218; E-171 to H-218; G-172 to H-218; L-173 to H-218; Y-174 to H-218; Q-175 to H-218; V-176 to H-218; T-177 to H-218; S-178 to H-218; V-179 to H-218; L-180 to H-218; R-181 to H-218; L-182 to H-218; K-183 to H-218; P-184 to H-218; P-185 to H-218; P-186 to H-218; G-187 to H-218; R-188 to H- 218; N-189 to H-218; F-190 to H-218; S-191 to H-218; C-192 to H-218; V-193 to H-218; F- 194 to H-218; W-195 to H-218; N-196 to H-218; T-197 to H-218; H-198 to H-218; V-199 to H-218; R-200 to H-218; E-201 to H-218; L-202 to H-218; T-203 to H-218; L-204 to H-218; A-205 to H-218; S-206 to H-218; 1-207 to H-218; D-208 to H-218; L-209 to H-218; Q-210 to H-218; S-211 to H-218; Q-212 to H-218; and/or M-213 to H-218 of SEQ DD NO: 15. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [104] Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of C-terminal deletions of the mature extracellular portion of the B7-H7 protein (SEQ DD NO: 32): L-20 to T-217; L-20 to R-216; L-20 to P-215; L-20 to E-214; L-20 to M-213; L-20 to Q- 212; L-20 to S-211; L-20 to Q-210; L-20 to L-209; L-20 to D-208; L-20 to 1-207; L-20 to S- 206; L-20 to A-205; L-20 to L-204; L-20 to T-203; L-20 to L-202; L-20 to E-201; L-20 to R- 200; L-20 to V-199; L-20 to H-198; L-20 to T-197; L-20 to N-196; L-20 to W-195; L-20 to F-194; L-20 to V-193; L-20 to C-192; L-20 to S-191; L-20 to F-190; L-20 to N-189; L-20 to R-188; L-20 to G-187 L-20 to P-186; L-20 to P-185; L-20 to P-184; L-20 to K-183; L-20 to L-182; L-20 to R-181 L-20 to L-180; L-20 to V-179; L-20 to S-178; L-20 to T-177; L-20 to V-176; L-20 to Q-175 L-20 to Y-174; L-20 to L-173; L-20 to G-172; L-20 to E-171; L-20 to P-170; L-20 to T-169 L-20 to R-168; L-20 to S-167; L-20 to H-166; L-20 to S-165; L-20 to T-164; L-20 to N-163 L-20 to A-162; L-20 to P-161; L-20 to V-160; L-20 to S-159; L-20 to V-158; L-20 to N-157 L-20 to P-156; L-20 to W-155; L-20 to S-154; L-20 to V-153; L-20 to E-152; L-20 to A-151 L-20 to L-150; L-20 to P-149; L-20 to Y-148; L-20 to G-147; L-20 to T-146 L-20 to A-145 L-20 to Q-144; L-20 to C-143; L-20 to T-142; L-20 to L-141; L-20 to E-140 L-20 to V-139 L-20 to E-138; L-20 to D-137; L-20 to T-136; L-20 to E-135; L-20 to P-134 L-20 to V-133 L-20 to K-132; L-20 to L-131; L-20 to 1-130; L-20 to H-129; L-20 to T-128 L-20 to N-127 L-20 to 1-126; L-20 to K-125; L-20 to R-124; L-20 to Y-123; L-20 to S-122 L-20 to A-121 L-20 to K-120; L-20 to V-119; L-20 to K-118; L-20 to L-117; L-20 to T-116 L-20 to L-115 L-20 to Y-l 14; L-20 to K-l 13; L-20 to Y-l 12; L-20 to D-l 11; L-20 to W-110; L-20 to A-109; L-20 to V-108; L-20 to G-107; L-20 to Y-106; L-20 to 1-105; L-20 to 1-104; L-20 to 1-103; L-20 to C-102; L-20 to Q-101; L-20 to Y-100; L-20 to Q-99; L-20 to G- 98; L-20 to E-97; L-20 to D-96; L-20 to R-95; L-20 to V-94; L-20 to Q-93; L-20 to V-92; L- 20 to Q-91; L-20 to P-90; L-20 to 1-89; L-20 to H-88; L-20 to F-87; L-20 to S-86; L-20 to A- 85; L-20 to K-84; L-20 to G-83; L-20 to L-82; L-20 to P-81; L-20 to L-80; L-20 to Q-79; L- 20 to E-78; L-20 to E-77; L-20 to L-76; L-20 to L-75; L-20 to T-74; L-20 to A-73; L-20 to R- 72; L-20 to E-71; L-20 to R-70; L-20 to H-69; L-20 to P-68; L-20 to S-67; L-20 to T-66; L- 20 to D-65; L-20 to N-64; L-20 to E-63; L-20 to V-62; L-20 to K-61; L-20 to Q-60; L-20 to L-59; L-20 to S-58; L-20 to A-57; L-20 to T-56; L-20 to 1-55; L-20 to A-54; L-20 to G-53; L- 20 to L-52; L-20 to N-51; L-20 to V-50; L-20 to H-49; L-20 to S-48; L-20 to G-47; L-20 to T-46; L-20 to D-45; L-20 to F-44; L-20 to N-43; L-20 to C-42; L-20 to E-41; L-20 to L-40; L-20 to T-39; L-20 to V-38; L-20 to N-37; L-20 to S-36; L-20 to G-35; L-20 to H-34; L-20 to E-33; L-20 to 1-32; L-20 to 1-31; L-20 to Y-30; L-20 to L-29; L-20 to E-28; L-20 to K-27; and/or L-20 to P-26 of SEQ DD NO: 15. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [105] h addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, wliich may be described generally as having residues m-n of SEQ DD NO: 15, where n and m are integers as described above. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. [106] Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% identical to a polypeptide sequence set forth herein as m-n. hi preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [107] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 277 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 277 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [108] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [109] It has been discovered that this gene is expressed in dendritic cells, T cells, heart, lung, liver, spleen, and lymph node tissues. [110] Polynucleotides, translation products and antibodies corresponding to this gene are useful as reagents for differential identification of immune system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly involving T cells, in addition to other immune system cells such as dendritic cells, neutrophils, and leukocytes. [Ill] Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification of the tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity of the B7-H7 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activites as are disclosed herein (e.g. T cell modulated activities). [112] For a number of disorders of the above tissues or cells, particularly of the immune system, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., immune, neural, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [113] The tissue distribution in immune cells (e.g., T-cells, dendritic cells), and the homology to members of the B7 family of ligands, indicates that the polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells, neutrophils, dendritic cells, leukocytes, and other immune system cells. In particular, the translation product ofthe B7-H7 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation ofthe expression of particular cytokines, for example. [114] More generally, the tissue distribution in immune system cells indicates that this gene product may be involved in the regulation of cytokine production, antigen presentation, or other processes that may also suggest a usefulness in the treatment of cancer (e.g. by boosting immune responses). Since the gene is expressed in cells of immune origin, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. [115] Polynucleotides, translation products and antibodies corresponding to this gene may be also used as an agent for immunological disorders including arthritis, asthma, immune deficiency diseases such as ADDS, leukemia, rheumatoid arthritis, inflammatory bowel disease, sepsis, acne, and psoriasis. In addition, this gene product may have commercial utility in the expansion of stem cells and committed progenitors of various blood lineages, and in the differentiation and/or proliferation of various cell types. Additionally, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. Furthermore, the protein may also be used to determine biological activity, to raise antibodies, as tissue markers, to isolate cognate ligands or receptors, to identify agents that modulate their interactions, in addition to its use as a nutritional supplement. [116] In addition, the tissue distribution in heart and liver tissues indicates that polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis, detection and or treatment of diseases and/or disorders of the cardiovascular and hepatic systems. Expression within heart tissue suggests that polynucleotides, translation products and antibodies corresponding to this clone are useful for the diagnosis and treatment of conditions and pathologies of the cardiovascular system, such as heart disease, restenosis, atherosclerosis, stroke, angina, thrombosis, and wound healing. Expression within liver tissue suggests that polynucleotides, translation products and antibodies corresponding to this clone are useful for the detection and treatment of liver disorders and cancers (e.g., hepatoblastoma, jaundice, hepatitis, liver metabolic diseases and conditions that are attributable to the differentiation of hepatocyte progenitor cells). In addition the expression in fetus would suggest a useful role for the protein product in developmental abnormalities, fetal deficiencies, pre-natal disorders and various would-healing models and/or tissue trauma. FEATURES OF PROTEIN ENCODED BY GENE NO: 3 [117] For purposes of this application, this gene and its corresponding translation product are known as the B7-H9 gene and B7-H9 protein. The B7-H9 gene shares sequence homology with members of the B7 family of ligands (i.e., B7-1 (See Genbank Accession 507873)). These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation, and death of T. cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation of the T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists such as antibodies or small molecules directed against the B7-H9 gene are useful for treating T cell mediated immune system disorders. [118] Preferred polypeptides of the present invention comprise, or alternatively consist of, one, two, three, four, five, or all five of the immunogenic epitopes of the B7-H9 protein shown in SEQ DD NO: 16 as residues: Tyr-67 to Pro-74, Ser-117 to Gln-123, Pro-161 to Met- 185, Gly-224 to His-242, and Thr-299 to Trp-307. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [119] h additional nonexclusive embodiments, polypeptides of the invention comprise, or alternatively consist of, one or both ofthe following amino acid sequences: [120] The mature region of the B7-H9 protein: QWQVFGPDKPVQALVGEDAAFSCFLSPKTNAEAMEVRFFRGQFSSVVHLYRDGKD QPFMQMPQYQGRTKLVKDSIAEGRISLRLENITVLDAGLYGCRISSQSYYQKAiWEL QVSALGSVPLISIAGYVDRDIQLLCQSSGWFPRPTAKWKGPQGQDLSTDSRTNRDMH GLFDVEISLTVQENAGSISCSMRHAHLSREVESRVQIGDWRRKHGQAGKRKYSSSHI YDSFPSLSFMDFYILRPVGPCPvAKLVMGTLKLQILGEVHFVEKPHSLLQISGGSTTLK KGPNPWSFPSPCALFPT (SEQ DD NO: 36), and [121] The leader sequence of the B7-H9 protein: MALMLSLVLSLLKLGSG (SEQ DD NO: 37). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [122] Also preferred are polypeptides comprising, or alternatively consisting of, fragments of the B7-H9 protein demonstrating functional activity (SEQ DD NO: 16). Polynucleotides encoding these polypeptides are also encompassed by the invention. By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H9 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H9 polypeptide for binding) to an anti-B7-H9 antibody], immunogenicity (ability to generate antibody which binds to a B7-H9 polypeptide), ability to form multimers with B7-H9 polypeptides of the invention, and ability to bind to a receptor for a B7-H9 polypeptide. [123] Figures 5A-C show the nucleotide (SEQ DD NO: 4) and deduced amino acid sequence (SEQ DD NO: 16) corresponding to this gene. [124] Figure 6 shows an analysis of the amino acid sequence (SEQ DD NO: 16). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 6 are also represented in tabular form in Table 5. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XEV. The column headings refer to the following features ofthe amino acid sequence presented in Figure 6, and Table 5: "Res": amino acid residue of SEQ DD NO: 16 and Figures 5A-C; "Position": position of the corresponding residue within SEQ DD NO: 16 and Figures 5A-C; I: Alpha, Regions - Garnier-Robson; II: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier-Robson; IV: Beta, Regions - Chou-Fasman; V: Turn, Regions - Garnier-Robson; VI: Turn, Regions - Chou-Fasman; VII: Coil, Regions - Garnier-Robson; VTH: Hydrophilicity Plot - Kyte- Doolittle; EX: Hydrophobicity Plot - Hopp- Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; XU: Flexible Regions - Karplus- Schulz; XEQ: Antigenic Index - Jameson- Wolf; and XEV: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more of the following regions: alpha-helix and alpha-helix forming regions ("alpha-regions"), beta-sheet and beta-sheet forming regions ("beta- regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes ofthe protein set forth in Figure 6 and/or Table 5, as described above, was generated using the various modules and algorithms ofthe DNA*STAR set on default parameters. In a preferred embodiment, the data presented in columns VDI, IX, XDI, and XJV of Table 5 can be used to determine regions of the protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns VDI, IX, XDI, and/or XIV by choosing values which represent regions ofthe polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 6, but may, as shown in Table 5, be represented or identified by using tabular representations of the data presented in Figure 6. The DNA*STAR computer algorithm used to generate Figure 6 (set on the original default parameters) was used to present the data in Figure 6 in a tabular format (See Table 5). The tabular format of the data in Figure 6 (See Table 5) is used to easily determine specific boundaries of a preferred region. [125] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ DD NO: 4, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt, still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 4. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ DD NO: 4. hi this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ DD NO: 4, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. In additional embodiments, the polynucleotides ofthe invention encode functional attributes ofthe corresponding protein. [126] Preferred polypeptide fragments of the invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the polypeptide can be described by the general formula m-318 where m is an integer from 2 to 313, where m corresponds to the position of the amino acid residue identified in SEQ D NO: 16. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: A-2 to T-318; L- 3 to T-318; M-4 to T-318; L-5 to T-318; S-6 to T-318; L-7 to T-318; V-8 to T-318; L-9 to T- 318; S-10 to T-318; L-l l to T-318; L-12 to T-318; K-13 to T-318; L-14 to T-318; G-15 to T- 318; S-16 to T-318; G-17 to T-318; Q-18 to T-318; W-19 to T-318; Q-20 to T-318; V-21 to T-318 F-22 to T-318 G-23 to T-318 P-24 to T-318; D-25 to T-318; K-26 to T-318; P-27 to T-318 V-28 to T-318 Q-29 to T-318 A-30 to T-318; L-31 to T-318; V-32 to T-318; G-33 to T-318 E-34 to T-318 D-35 to T-318 A-36 to T-318; A-37 to T-318; F-38 to T-318; S-39 to T-318 C-40 to T-318 F-41 to T-318 L-42 to T-318; S-43 to T-318; P-44 to T-318; K-45 to T-318 T-46 to T-318 N-47 to T-318 A-48 to T-318; E-49 to T-318; A-50 to T-318; M-51 to T-318 E-52 to T-318 V-53 to T-318 R-54 to T-318; F-55 to T-318; F-56 to T-318; R-57 to T-318 G-58 to T-318 Q-59 to T-318 F-60 to T-318; S-61 to T-318; S-62 to T-318; V-63 to T-318 V-64 to T-318 H-65 to T-318 L-66 to T-318; Y-67 to T-318; R-68 to T-318; D-69 to T-318 G-70 to T-318 K-71 to T-318 D-72 to T-318; Q-73 to T-318; P-74 to T-318; F-75 to T-318 M-76 to T-318; Q-77 to T-318; M-78 to T-318; P-79 to T-318; Q-80 to T-318; Y-81 to T-318 Q-82 to T-318; G-83 to T-318; R-84 to T-318; T-85 to T-318; K-86 to T-318; L-87 to T-318 V-88 to T-318; K-89 to T-318; D-90 to T-318; S-91 to T-318; 1-92 to T-318; A-93 to T-318 E-94 to T-318; G-95 to T-318; R-96 to T-318; 1-97 to T-318; S-98 to T-318; L-99 to T-318 R-100 to T-318; L-101 to T-318; E-102 to T-318; N-103 to T-318; 1-104 to T-318; T-105 to T-318; V-106 to T-318; L-107 to T-318; D-108 to T-318; A-109 to T-318; G-110 to T-318; L-lll to T-318; Y-l 12 to T-318; G-113 to T-318; C-114 to T-318; R-115 to T-318; I- 116 to T-318; S-117 to T-318; S-118 to T-318; Q-119 to T-318; S-120 to T-318; Y-121 to T- 318; Y-122 to T-318; Q-123 to T-318; K-124 to T-318; A-125 to T-318; 1-126 to T-318; W- 127 to T-318; E-128 to T-318; L-129 to T-318; Q-130 to T-318; V-131 to T-318; S-132 to T- 318; A-133 to T-318; L-134 to T-318; G-135 to T-318; S-136 to T-318; V-137 to T-318; P- 138 to T-318; L-139 to T-318; 1-140 to T-318; S-141 to T-318; 1-142 to T-318; A-143 to T- 318; G-144 to T-318; Y-145 to T-318; V-146 to T-318; D-147 to T-318; R-148 to T-318; D- 149 to T-318; 1-150 to T-318; Q-151 to T-318; L-152 to T-318; L-153 to T-318; C-154 to T- 318; Q-155 to T-318; S-156 to T-318; S-157 to T-318; G-158 to T-318; W-159 to T-318; F- 160 to T-318; P-161 to T-318; R-162 to T-318; P-163 to T-318; T-164 to T-318; A-165 to T- 318; K-166 to T-318; W-167 to T-318; K-168 to T-318; G-169 to T-318; P-170 to T-318; Q- 171 to T-318; G-172 to T-318; Q-173 to T-318; D-174 to T-318; L-175 to T-318; S-176 to T- 318; T-177 to T-318; D-178 to T-318; S-179 to T-318; R-180 to T-318; T-181 to T-318; N- 182 to T-318; R-183 to T-318; D-184 to T-318; M-185 to T-318; H-186 to T-318; G-187 to T-318; L-188 to T-318; F-189 to T-318; D-190 to T-318; V-191 to T-318; E-192 to T-318; I- 193 to T-318; S-194 to T-318; L-195 to T-318; T-196 to T-318; V-197 to T-318; Q-198 to T- 318; E-199 to T-318; N-200 to T-318; A-201 to T-318; G-202 to T-318; S-203 to T-318; I- 204 to T-318; S-205 to T-318; C-206 to T-318; S-207 to T-318; M-208 to T-318; R-209 to T- 318; H-210 to T-318; A-211 to T-318; H-212 to T-318; L-213 to T-318; S-214 to T-318; R- 215 to T-318; E-216 to T-318; V-217 to T-318; E-218 to T-318; S-219 to T-318; R-220 to T- 318; V-221 to T-318; Q-222 to T-318; 1-223 to T-318; G-224 to T-318; D-225 to T-318; W- 226 to T-318; R-227 to T-318; R-228 to T-318; K-229 to T-318; H-230 to T-318; G-231 to T-318; Q-232 to T-318; A-233 to T-318; G-234 to T-318; K-235 to T-318; R-236 to T-318; K-237 to T-318; Y-238 to T-318; S-239 to T-318; S-240 to T-318; S-241 to T-318; H-242 to T-318; 1-243 to T-318; Y-244 to T-318; D-245 to T-318; S-246 to T-318; F-247 to T-318; P- 248 to T-318; S-249 to T-318; L-250 to T-318; S-251 to T-318; F-252 to T-318; M-253 to T- 318; D-254 to T-318; F-255 to T-318; Y-256 to T-318; 1-257 to T-318; L-258 to T-318; R- 259 to T-318; P-260 to T-318; V-261 to T-318; G-262 to T-318; P-263 to T-318; C-264 to T- 318; R-265 to T-318; A-266 to T-318; K-267 to T-318; L-268 to T-318; V-269 to T-318; M- 270 to T-318; G-271 to T-318; T-272 to T-318; L-273 to T-318; K-274 to T-318; L-275 to T- 318; Q-276 to T-318; 1-277 to T-318; L-278 to T-318; G-279 to T-318; E-280 to T-318; V- 281 to T-318; H-282 to T-318; F-283 to T-318; V-284 to T-318; E-285 to T-318; K-286 to T- 318; P-287 to T-318; H-288 to T-318; S-289 to T-318; L-290 to T-318; L-291 to T-318; Q- 292 to T-318; 1-293 to T-318; S-294 to T-318; G-295 to T-318; G-296 to T-318; S-297 to T- 318; T-298 to T-318; T-299 to T-318; L-300 to T-318; K-301 to T-318; K-302 to T-318; G- 303 to T-318; P-304 to T-318; N-305 to T-318; P-306 to T-318; W-307 to T-318; S-308 to T- 318; F-309 to T-318; P-310 to T-318; S-311 to T-318; P-312 to T-318; and C-313 to T-318 of SEQ DD NO: 16. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [127] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 5A-C (SEQ ED NO: 16), as described by the general formula 1- n, where n is an integer from 7 to 317, where n corresponds to the position ofthe amino acid residue identified in SEQ DD NO: 16. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group of C-terminal deletions: M-1 to P-317; M-1 to F-316; M-1 to L-315; M-1 to A-314; M-1 to C-313; M-1 to P-312; M-1 to S-311; M-1 to P-310; M-1 to F-309; M-1 to S-308; M-1 to W-307; M-1 to P-306; M-1 to N-305; M-1 to P-304; M-1 to G- 303; M-1 to K-302; M-1 to K-301; M-1 to L-300; M-1 to T-299; M-1 to T-298; M-1 to S- 297; M-1 to G-296; M-1 to G-295; M-1 to S-294; M-1 to 1-293; M-1 to Q-292; M-1 to L-291; M-1 to L-290; M-1 to S-289; M-1 to H-288; M-1 to P-287; M-1 to K-286; M-1 to E-285; M- 1 to V-284; M-1 to F-283; M-1 to H-282; M-1 to V-281; M-1 to E-280; M-1 to G-279; M-1 to L-278; M-1 to 1-277; M-1 to Q-276; M-1 to L-275; M-1 to K-274; M-1 to L-273; M-1 to T-272; M-1 to G-271; M-1 to M-270; M-1 to V-269; M-1 to L-268; M-1 to K-267; M-1 to A- 266; M-1 to R-265; M-1 to C-264; M-1 to P-263; M-1 to G-262; M-1 to V-261; M-1 to P- 260; M-1 to R-259; M-1 to L-258; M-1 to 1-257; M-1 to Y-256; M-1 to F-255; M-1 to D-254; M-1 to M-253; M-1 to F-252; M-1 to S-251; M-1 to L-250; M-1 to S-249; M-1 to P-248; M-1 to F-247; M-1 to S-246; M-1 to D-245; M-1 to Y-244; M-1 to 1-243; M-1 to H-242; M-1 to S-241; M-1 to S-240; M-1 to S-239; M-1 to Y-238; M-1 to K-237; M-1 to R-236; M-1 to K- 235; M-1 to G-234; M-1 to A-233; M-1 to Q-232; M-1 to G-231; M-1 to H-230; M-1 to K- 229; M-1 to R-228; M-1 to R-227; M-1 to W-226; M-1 to D-225; M-1 to G-224; M-1 to I- 223; M-1 to Q-222; M-1 to V-221; M-1 to R-220; M-1 to S-219; M-1 to E-218; M-1 to V- 217; M-1 to E-216; M-1 to R-215; M-1 to S-214; M-1 to L-213; M-1 to H-212; M-1 to A- 211; M-1 to H-210; M-1 to R-209; M-1 to M-208; M-1 to S-207; M-1 to C-206; M-1 to S- 205; M-1 to 1-204; M-1 to S-203; M-1 to G-202; M-1 to A-201; M-1 to N-200; M-1 to E-199; M-1 to Q-198; M-1 to V-197; M-1 to T-196; M-1 to L-195; M-1 to S-194; M-1 to 1-193; M-1 to E-192; M-1 to V-191; M-1 to D-190; M-1 to F-189; M-1 to L-188; M-1 to G-187; M-1 to H-186; M-1 to M-185; M-1 to D-184; M-1 to R-183; M-1 to N-182; M-1 to T-181; M-1 to R- 180; M-1 to S-179; M-1 to D-178; M-1 to T-177; M-1 to S-176; M-1 to L-175; M-1 to D- 174; M-1 to Q-173; M-1 to G-172; M-1 to Q-171; M-1 to P-170; M-1 to G-169; M-1 to K- 168; M-1 to W-167; M-1 to K-166; M-1 to A-165; M-1 to T-164; M-1 to P-163; M-1 to R- 162; M-1 to P-161; M-1 to F-160; M-1 to W-159; M-1 to G-158; M-1 to S-157; M-1 to S- 156; M-1 to Q-155; M-1 to C-154; M-1 to L-153; M-1 to L-152; M-1 to Q-151; M-1 to 1-150; M-1 to D-149; M-1 to R-148; M-1 to D-147; M-1 to V-146; M-1 to Y-145; M-1 to G-144; M-1 to A-143; M-1 to 1-142; M-1 to S-141; M-1 to 1-140; M-1 to L-139; M-1 to P-138; M-1 to V-137; M-1 to S-136; M-1 to G-135; M-1 to L-134; M-1 to A-133; M-1 to S-132; M-1 to V-131; M-1 to Q-130; M-1 to L-129; M-1 to E-128; M-1 to W-127; M-1 to 1-126; M-1 to A- 125; M-1 to K-124; M-1 to Q-123; M-1 to Y-122; M-1 to Y-121; M-1 to S-120; M-1 to Q- 119; M-1 to S-118; M-1 to S-117; M-1 to 1-116; M-1 to R-115; M-1 to C-l 14; M-1 to G-113; M-1 to Y-l 12; M-1 to L-lll; M-1 to G-110; M-1 to A-109; M-1 to D-108; M-1 to L-107; M- 1 to V-106; M-1 to T-105; M-1 to 1-104; M-1 to N-103; M-1 to E-102; M-1 to L-101; M-1 to R-100; M-1 to L-99; M-1 to S-98; M-1 to 1-97; M-1 to R-96; M-1 to G-95; M-1 to E-94; M-1 to A-93; M-1 to 1-92; M-1 to S-91; M-1 to D-90; M-1 to K-89; M-1 to V-88; M-1 to L-87; M-1 to K-86; M-1 to T-85; M-1 to R-84; M-1 to G-83; M-1 to Q-82; M-1 to Y-81; M-1 to Q- 80; M-1 to P-79; M-1 to M-78; M-1 to Q-77; M-1 to M-76; M-1 to F-75; M-1 to P-74; M-1 to Q-73; M-1 to D-72; M-1 to K-71; M-1 to G-70; M-1 to D-69; M-1 to R-68; M-1 to Y-67; M- 1 to L-66; M-1 to H-65; M-1 to V-64; M-1 to V-63; M-1 to S-62; M-1 to S-61; M-1 to F-60; M-1 to Q-59; M-1 to G-58; M-1 to R-57; M-1 to F-56; M-1 to F-55; M-1 to R-54; M-1 to V- 53; M-1 to E-52; M-1 to M-51; M-1 to A-50; M-1 to E-49; M-1 to A-48; M-1 to N-47; M-1 to T-46; M-1 to K-45; M-1 to P-44; M-1 to S-43; M-1 to L-42; M-1 to F-41; M-1 to C-40; M- 1 to S-39; M-1 to F-38; M-1 to A-37; M-1 to A-36; M-1 to D-35; M-1 to E-34; M-1 to G-33; M-1 to V-32; M-1 to L-31; M-1 to A-30; M-1 to Q-29; M-1 to V-28; M-1 to P-27; M-1 to K- 26; M-1 to D-25; M-1 to P-24; M-1 to G-23; M-1 to F-22; M-1 to V-21; M-1 to Q-20; M-1 to W-19; M-1 to Q-18; M-1 to G-17; M-1 to S-16; M-1 to G-15; M-1 to L-14; M-1 to K-13; M- 1 to L-12; M-1 to L-ll; M-1 to S-10; M-1 to L-9; M-1 to V-8; and M-1 to L-7 of SEQ DD NO: 16. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the mvention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [128] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protein results in modification of loss of one or more biological functions ofthe protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to generate antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority ofthe residues ofthe complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [129] More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of N-terminal deletions of the mature portion of the B7-H9 protein (SEQ TD NO: 36): W-19 to T-318: ; Q-20 to T-318 V-21 to T-318; F-22 to T-318 G-23 to T-318 P-24 to T-318; D-25 to T-318: ; K-26 to T-318 P-27 to T-318; V-28 to T-318 Q-29 to T-318 A-30 to T-318; L-31 to T-318; ; V-32 to T-318 ; G-33 to T-318; E-34 to T-318 D-35 to T-318 A-36 to T-318; A-37 to T-318: ; F-38 to T-318: S-39 to T-318; C-40 to T-318 F-41 to T-318 L-42 to T-318; S-43 to T-318; ; P-44 to T-318; K-45 to T-318; T-46 to T-318 N-47 to T-318 ; A-48 to T-318; E-49 to T-318: ; A-50 to T-318 M-51 to T-318; E-52 to T-318 V-53 to T-318 R-54 to T-318; F-55 to T-318; ; F-56 to T-318; R-57 to T-318; G-58 to T-318 Q-59 to T-318 F-60 to T-318; S-61 to T-318; ; S-62 to T-318; V-63 to T-318; V-64 to T-318 H-65 to T-318 L-66 to T-318; Y-67 to T-318; ; R-68 to T-318; D-69 to T-318; G-70 to T-318 K-71 to T-318 D-72 to T-318; Q-73 to T-318; P-74 to T-318; F-75 to T-318; M-76 to T-318; Q-77 to T-318; M-78 to T-318; P-79 to T-318; Q-80 to T-318; Y-81 to T-318; Q-82 to T-318; G-83 to T-318; R-84 to T-318; T-85 to T-318; K-86 to T-318; L-87 to T-318; V-88 to T-318; K-89 to T-318; D-90 to T-318; S-91 to T-318; 1-92 to T-318; A-93 to T-318; E-94 to T-318; G-95 to T-318; R-96 to T-318; 1-97 to T-318; S-98 to T-318; L-99 to T-318; R-100 to T-318; L-101 to T-318; E-102 to T-318; N- 103 to T-318; 1-104 to T-318; T-105 to T-318; V-106 to T-318; L-107 to T-318; D-108 to T- 318; A-109 to T-318; G-110 to T-318; L-lll to T-318; Y-l 12 to T-318; G-113 to T-318; C- 114 to T-318; R-115 to T-318; 1-116 to T-318; S-117 to T-318; S-118 to T-318; Q-119 to T- 318; S-120 to T-318; Y-121 to T-318; Y-122 to T-318; Q-123 to T-318; K-124 to T-318; A- 125 to T-318; 1-126 to T-318; W-127 to T-318; E-128 to T-318; L-129 to T-318; Q-130 to T- 318; V-131 to T-318; S-132 to T-318; A-133 to T-318; L-134 to T-318; G-135 to T-318; S- 136 to T-318; V-137 to T-318; P-138 to T-318; L-139 to T-318; 1-140 to T-318; S-141 to T- 318; 1-142 to T-318; A-143 to T-318; G-144 to T-318; Y-145 to T-318; V-146 to T-318; D- 147 to T-318; R-148 to T-318; D-149 to T-318; 1-150 to T-318; Q-151 to T-318; L-152 to T- 318; L-153 to T-318; C-154 to T-318; Q-155 to T-318; S-156 to T-318; S-157 to T-318; G- 158 to T-318; W-159 to T-318; F-160 to T-318; P-161 to T-318; R-162 to T-318; P-163 to T- 318; T-164 to T-318; A-165 to T-318; K-166 to T-318; W-167 to T-318; K-168 to T-318; G- 169 to T-318; P-170 to T-318; Q-171 to T-318; G-172 to T-318; Q-173 to T-318; D-174 to T- 318; L-175 to T-318; S-176 to T-318; T-177 to T-318; D-178 to T-318; S-179 to T-318; R- 180 to T-318; T-181 to T-318; N-182 to T-318; R-183 to T-318; D-184 to T-318; M-185 to T-318; H-186 to T-318; G-187 to T-318; L-188 to T-318; F-189 to T-318; D-190 to T-318; V-191 to T-318; E-192 to T-318; 1-193 to T-318; S-194 to T-318; L-195 to T-318; T-196 to T-318; V-197 to T-318; Q-198 to T-318; E-199 to T-318; N-200 to T-318; A-201 to T-318; G-202 to T-318; S-203 to T-318; 1-204 to T-318; S-205 to T-318; C-206 to T-318; S-207 to T-318; M-208 to T-318; R-209 to T-318; H-210 to T-318; A-211 to T-318; H-212 to T-318; L-213 to T-318; S-214 to T-318; R-215 to T-318; E-216 to T-318; V-217 to T-318; E-218 to T-318; S-219 to T-318; R-220 to T-318; V-221 to T-318; Q-222 to T-318; 1-223 to T-318; G- 224 to T-318; D-225 to T-318; W-226 to T-318; R-227 to T-318; R-228 to T-318; K-229 to T-318; H-230 to T-318; G-231 to T-318; Q-232 to T-318; A-233 to T-318; G-234 to T-318; K-235 to T-318; R-236 to T-318; K-237 to T-318; Y-238 to T-318; S-239 to T-318; S-240 to T-318; S-241 to T-318; H-242 to T-318; 1-243 to T-318; Y-244 to T-318; D-245 to T-318; S- 246 to T-318; F-247 to T-318; P-248 to T-318; S-249 to T-318; L-250 to T-318; S-251 to T- 318; F-252 to T-318; M-253 to T-318; D-254 to T-318; F-255 to T-318; Y-256 to T-318; I- 257 to T-318; L-258 to T-318; R-259 to T-318; P-260 to T-318; V-261 to T-318; G-262 to T- 318; P-263 to T-318; C-264 to T-318; R-265 to T-318; A-266 to T-318; K-267 to T-318; L- 268 to T-318; V-269 to T-318; M-270 to T-318; G-271 to T-318; T-272 to T-318; L-273 to T-318; K-274 to T-318; L-275 to T-318; Q-276 to T-318; 1-277 to T-318; L-278 to T-318; G- 279 to T-318; E-280 to T-318; V-281 to T-318; H-282 to T-318; F-283 to T-318; V-284 to T- 318; E-285 to T-318; K-286 to T-318; P-287 to T-318; H-288 to T-318; S-289 to T-318; L- 290 to T-318; L-291 to T-318; Q-292 to T-318; 1-293 to T-318; S-294 to T-318; G-295 to T- 318; G-296 to T-318; S-297 to T-318; T-298 to T-318; T-299 to T-318; L-300 to T-318; K- 301 to T-318; K-302 to T-318; G-303 to T-318; P-304 to T-318; N-305 to T-318; P-306 to T- 318; W-307 to T-318; S-308 to T-318; F-309 to T-318; P-310 to T-318; S-311 to T-318; P- 312 to T-318; and/or C-313 to T-318 of SEQ ID NO: 16. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [130] Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of C-terminal deletions ofthe mature portion ofthe B7-H9 protein (SEQ DD NO: 36): Q-18 to P- 317; Q-18 to F-316; Q-18 to L-315; Q-18 to A-314; Q-18 to C-313; Q-18 to P-312; Q-18 to S-311; Q-18 to P-310; Q-18 to F-309; Q-18 to S-308; Q-18 to W-307; Q-18 to P-306; Q-18 to N-305; Q-18 to P-304; Q-18 to G-303; Q-18 to K-302; Q-18 to K-301; Q-18 to L-300; Q- 18 to T-299; Q-18 to T-298; Q-18 to S-297; Q-18 to G-296; Q-18 to G-295; Q-18 to S-294; Q-18 to 1-293; Q-18 to Q-292; Q-18 to L-291; Q-18 to L-290; Q-18 to S-289; Q-18 to H-288; Q-18 to P-287; Q-18 to K-286; Q-18 to E-285; Q-18 to V-284; Q-18 to F-283; Q-18 to H- 282; Q-18 to V-281; Q-18 to E-280; Q-18 to G-279; Q-18 to L-278; Q-18 to 1-277; Q-18 to Q-276; Q-18 to L-275; Q-18 to K-274; Q-18 to L-273; Q-18 to T-272; Q-18 to G-271; Q-18 to M-270; Q-18 to V-269; Q-18 to L-268; Q-18 to K-267; Q-18 to A-266; Q-18 to R-265; Q- 18 to C-264; Q-18 to P-263; Q-18 to G-262; Q-18 to V-261; Q-18 to P-260; Q-18 to R-259; Q-18 to L-258; Q-18 to 1-257; Q-18 to Y-256; Q-18 to F-255; Q-18 to D-254; Q-18 to M- 253; Q-18 to F-252; Q-18 to S-251; Q-18 to L-250; Q-18 to S-249; Q-18 to P-248; Q-18 to F- 247; Q-18 to S-246; Q-18 to D-245; Q-18 to Y-244; Q-18 to 1-243; Q-18 to H-242; Q-18 to S-241; Q-18 to S-240; Q-18 to S-239; Q-18 to Y-238; Q-18 to K-237; Q-18 to R-236; Q-18 to K-235; Q-18 to G-234; Q-18 to A-233; Q-18 to Q-232; Q-18 to G-231; Q-18 to H-230; Q- 18 to K-229; Q-18 to R-228; Q-18 to R-227; Q-18 to W-226; Q-18 to D-225; Q-18 to G-224; Q-18 to 1-223; Q-18 to Q-222; Q-18 to V-221; Q-18 to R-220; Q-18 to S-219; Q-18 to E-218; Q-18 to V-217; Q-18 to E-216; Q-18 to R-215; Q-18 to S-214; Q-18 to L-213; Q-18 to H- 212; Q-18 to A-211; Q-18 to H-210; Q-18 to R-209; Q-18 to M-208; Q-18 to S-207; Q-18 to C-206; Q-18 to S-205; Q-18 to 1-204; Q-18 to S-203; Q-18 to G-202; Q-18 to A-201; Q-18 to N-200; Q-18 to E-199; Q-18 to Q-198; Q-18 to V-197; Q-18 to T-196; Q-18 to L-195; Q-18 to S-194; Q-18 to 1-193; Q-18 to E-192; Q-18 to V-191; Q-18 to D-190; Q-18 to F-189; Q-18 to L-188; Q-18 to G-187; Q-18 to H-186; Q-18 to M-185; Q-18 to D-184; Q-18 to R-183; Q- 18 to N-182; Q-18 to T-181; Q-18 to R-180; Q-18 to S-179; Q-18 to D-178; Q-18 to T-177; Q-18 to S-176; Q-18 to L-175; Q-18 to D-174; Q-18 to Q-173; Q-18 to G-172; Q-18 to Q- 171; Q-18 to P-170; Q-18 to G-169; Q-18 to K-168; Q-18 to W-167; Q-18 to K-166; Q-18 to A-165; Q-18 to T-164; Q-18 to P-163; Q-18 to R-162; Q-18 to P-161; Q-18 to F-160; Q-18 to W-159; Q-18 to G-158; Q-18 to S-157; Q-18 to S-156; Q-18 to Q-155; Q-18 to C-154; Q-18 to L-153; Q-18 to L-152; Q-18 to Q-151; Q-18 to 1-150; Q-18 to D-149; Q-18 to R-148; Q-18 to D-147; Q-18 to V-146; Q-18 to Y-145; Q-18 to G-144; Q-18 to A-143; Q-18 to 1-142; Q- 18 to S-141; Q-18 to 1-140; Q-18 to L-139; Q-18 to P-138; Q-18 to V-137; Q-18 to S-136; Q- 18 to G-135; Q-18 to L-134; Q-18 to A-133; Q-18 to S-132; Q-18 to V-131; Q-18 to Q-130; Q-18 to L-129; Q-18 to E-128; Q-18 to W-127; Q-18 to 1-126; Q-18 to A-125; Q-18 to K- 124; Q-18 to Q-123; Q-18 to Y-122; Q-18 to Y-121; Q-18 to S-120; Q-18 to Q-119; Q-18 to S-118; Q-18 to S-117; Q-18 to 1-116; Q-18 to R-115; Q-18 to C-114; Q-18 to G-113; Q-18 to Y-112; Q-18 to L-lll; Q-18 to G-110; Q-18 to A-109; Q-18 to D-108; Q-18 to L-107; Q-18 to V-106; Q-18 to T-105; Q-18 to 1-104; Q-18 to N-103; Q-18 to E-102; Q-18 to L-101; Q-18 to R-100; Q-18 to L-99; Q-18 to S-98; Q-18 to 1-97; Q-18 to R-96; Q-18 to G-95; Q-18 to E- 94; Q-18 to A-93; Q-18 to 1-92; Q-18 to S-91; Q-18 to D-90; Q-18 to K-89; Q-18 to V-88; Q- 18 to L-87; Q-18 to K-86; Q-18 to T-85; Q-18 to R-84; Q-18 to G-83; Q-18 to Q-82; Q-18 to Y-81; Q-18 to Q-80; Q-18 to P-79; Q-18 to M-78; Q-18 to Q-77; Q-18 to M-76; Q-18 to F- 75; Q-18 to P-74; Q-18 to Q-73; Q-18 to D-72; Q-18 to K-71; Q-18 to G-70; Q-18 to D-69; Q-18 to R-68; Q-18 to Y-67; Q-18 to L-66; Q-18 to H-65; Q-18 to V-64; Q-18 to V-63; Q-18 to S-62; Q-18 to S-61; Q-18 to F-60; Q-18 to Q-59; Q-18 to G-58; Q-18 to R-57; Q-18 to F- 56; Q-18 to F-55; Q-18 to R-54; Q-18 to V-53; Q-18 to E-52; Q-18 to M-51; Q-18 to A-50; Q-18 to E-49; Q-18 to A-48; Q-18 to N-47; Q-18 to T-46; Q-18 to K-45; Q-18 to P-44; Q-18 to S-43; Q-18 to L-42; Q-18 to F-41; Q-18 to C-40; Q-18 to S-39; Q-18 to F-38; Q-18 to A- 37; Q-18 to A-36; Q-18 to D-35; Q-18 to E-34; Q-18 to G-33; Q-18 to V-32; Q-18 to L-31; Q-18 to A-30; Q-18 to Q-29; Q-18 to V-28; Q-18 to P-27; Q-18 to K-26; Q-18 to D-25; and or Q-18 to P-24 of SEQ DD NO: 16. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [131] In addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of SEQ DD NO: 16, where n and m are integers as described above. Polynucleotides encoding these polypeptides are also encompassed by the invention. [132] The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% identical to a polypeptide sequence set forth herein as m-n. In preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Polynucleotides encoding these polypeptides are also encompassed by the invention. [133] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 312 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 312 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [134] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [135] It has been discovered that this gene is expressed in small intestine, colon, and colon tumor tissues. [136] Polynucleotides and polypeptides of the invention are useful as reagents for differential identification of gastrointestinal system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly involving T cells and/or neutrophils, as well as diseases and or disorders of the gastrointestinal system. Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification of the tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity of the B7-H9 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activites as are disclosed herein (e.g. T cell modulated activities). [137] For a number of disorders of the above tissues or cells, particularly of the gastrointestinal and immune systems, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., immune, gastrointestinal, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [138] The homology to members of the B7 family of ligands indicates that the polynucleotides and polypeptides corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells and/or neutrophils. In particular, the translation product ofthe B7-H9 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation ofthe expression of particular cytokines, for example. [139] Expression within small intestine and colon tissues suggests that polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis and/or treatment of disorders involving the small intestine. This may include diseases associated with digestion and food absorption, as well as hematopoietic disorders involving the Peyer's patches of the small intestine, or other hematopoietic cells and tissues within the body. Similarly, expression of this gene product in colon and colon cancer tissues suggests again involvement in digestion, processing, and elimination of food, as well as a potential role for this gene as a diagnostic marker or causative agent in the development of colon cancer, and cancer in general. Additionally, translation products corresponding to this gene, as well as antibodies directed against these translation products, may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. FEATURES OF PROTEIN ENCODED BY GENE NO: 4 [140] For purposes of this application, this gene and its corresponding translation product are known as the B7-H11 gene and B7-H11 protein. This protein is believed to reside as a cell-surface molecule, and the transmembrane domain of this protein is believed to approximately embody the following preferred amino acid residues: TASPWMVSMTVILAVFIIFMAVSICC (SEQ ED NO: 38). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99%) identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. As one skilled in the art would understand, the transmembrane domain was predicted using computer analysis, and the transmembrane domain may vary by one, two, three, four, five, six, seven, eight, nine, and/or ten amino acids from the N and C-termini of the predicted transmembrane domain. The B7-H11 gene shares sequence homology with members of the B7 family of ligands (i.e., B7-H1 (See Genbank Accession AAF25807)). These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation and death of T cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation of the T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists such as antibodies or small molecules directed against the B7-H11 gene are useful for treating T cell mediated immune system disorders, as well as disorders of other immune system cells, such as for example, neutrophils, macrophage, and leukocytes. [141] Preferred polypeptides of the present invention comprise, or alternatively consist of, one, two, three, four, five, six, seven, eight, nine, ten, eleven, or all eleven of the immunogenic epitopes ofthe B7-H11 protein shown in SEQ DD NO: 17 as residues: Ser-53 to Glu-59, Lys-78 to Gly-93, Ala-116 to Tyr-122, Gln-127 to Asp-133, Lys-153 to Ser-159, Lys-283 to Lys-289, Ser-292 to Glu-303, Glu-339 to Ser-362, Ala-373 to Asn-381, Glu-384 to Arg-392, and Asn-394 to His-419. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [142] In additional nonexclusive embodiments, polypeptides of the invention comprise, or alternatively consist of, an amino acid sequence selected from the group consisting of: [143] The extracellular domain of the B7-H11 protein: MEPAAALHFSRPASLLLLLSLCALVSAQFTVVGPANPILAMVGENTTLRCHLSPEKN AEDMEVRWFRSQFSPAVFVYKGGRERTEEQMEEYRGRITFVSKDINRGSVALVIHNV TAQENGIYRCYFQEGRSYDEAILRLNNAGLGSKPLIEIKAQEDGSrWLECISGGWYPE PLTNWRDPYGEVVPALKEVSIADADGLFMVTTAVπRDKYVRΝVSCSVΝΝTLLGQE KETVEFIPESFMPSASPWMVALAVIL (SEQ ED NO: 39), [144] The mature extracellular domain of the B7-H11 protein: QFTNVGPANPE AMVGENTTLRCHLSPEKNAEDMEVRWFRSQFSPAVFVYKGGRER TEEQMEEYRGRITFVSKDINRGSVALVIHNVTAQENGΓYRCYFQEGRSYDEAILRLVV AGLGSKPLFFILKAQEDGSIWLECISGGWYPEPLTVWRDPYGEVVPALKEVSIADADGL FMVTTAVIIRDKYVRNVSCSVNNTLLGQEKETVIFIPESFMPSASPWMVALAVIL (SEQ DD NO: 40), and/or [145] The leader sequence of the B7-H11 protein: MEPAAALHFSRPASLLLLLSLCALVSA (SEQ DD NO: 41). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [146] Also preferred are polypeptides comprising, or alternatively consisting of, fragments ofthe mature extracellular portion ofthe B7-H11 protein demonstrating functional activity (SEQ DD NO: 40). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [147] • By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H11 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H11 polypeptide for binding) to an anti-B7-Hll antibody], immunogenicity (ability to generate antibody which binds to a B7-H11 polypeptide), ability to form multimers with B7-H11 polypeptides ofthe invention, and ability to bind to a receptor for a B7-H11 polypeptide. [148] Figures 7 A-D show the nucleotide (SEQ ED NO: 5) and deduced amino acid sequence (SEQ ED NO: 17) corresponding to this gene. Figure 8 shows an analysis of the amino acid sequence (SEQ DD NO: 17). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from wliich epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 8 are also represented in tabular form in Table 6. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XJV. The column headings refer to the following features of the amino acid sequence presented in Figure 8, and Table 6: "Res": amino acid residue of SEQ DD NO: 17 and Figures 7A-C; "Position": position of the corresponding residue within SEQ DD NO: 17 and Figures 7A-C; I: Alpha, Regions - Garnier-Robson; II: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier-Robson; IN: Beta, Regions - Chou-Fasman; N: Turn, Regions - Garnier-Robson; Nl: Turn, Regions - Chou-Fasman; NH: Coil, Regions - Garnier-Robson; NDI: Hydrophilicity Plot - Kyte-Doolittle; LX: Hydrophobicity Plot - Hopp-Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; Xu: Flexible Regions - Karplus-Schulz; XDI: Antigenic Index - Jameson- Wolf; and XIN: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more of the following regions: alpha-helix and alpha-helix forming regions ("alpha- regions"), beta-sheet and beta-sheet forming regions ("beta-regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes ofthe protein set forth in Figure 8 and/or Table 6, as described above, was generated using the various modules and algorithms of the DNA*STAR set on default parameters. In a preferred embodiment, the data presented in columns VDI, IX, XD3, and XIV of Table 6 can be used to determine regions ofthe protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns VDI, IX, XDI, and/or XJV by choosing values which represent regions of the polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 8, but may, as shown in Table 6, be represented or identified by using tabular representations of the data presented in Figure 8. The DNA* STAR computer algorithm used to generate Figure 8 (set on the original default parameters) was used to present the data in Figure 8 in a tabular format (See Table 6). The tabular format of the data in Figure 8 (See Table 6) is used to easily determine specific boundaries of a preferred region. [149] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ DD NO: 5, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt, still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 5. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ ED NO: 5. In this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ DD NO: 5, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. In additional embodiments, the polynucleotides ofthe invention encode functional attributes ofthe corresponding protein. [150] Preferred polypeptide fragments of the invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the polypeptide can be described by the general formula m-454 where m is an integer from 2 to 449, where m corresponds to the position of the amino acid residue identified in SEQ DD NO: 17. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: E-2 to L-454; P- 3 to L-454; A-4 to L-454; A-5 to L-454; A-6 to L-454; L-7 to L-454; H-8 to L-454; F-9 to L- 454; S-10 to L-454; R-l 1 to L-454; P-12 to L-454; A-13 to L-454; S-14 to L-454; L-15 to L- 454; L-16 to L-454; L-17 to L-454; L-18 to L-454; L-19 to L-454; S-20 to L-454; L-21 to L- 454; C-22 to L-454; A-23 to L-454; L-24 to L-454; V-25 to L-454; S-26 to L-454; A-27 to L- 454; Q-28 to L-454; F-29 to L-454; T-30 to L-454; V-31 to L-454; V-32 to L-454; G-33 to L- 454; P-34 to L-454; A-35 to L-454; N-36 to L-454; P-37 to L-454; 1-38 to L-454; L-39 to L- 454; A-40 to L-454; M-41 to L-454; V-42 to L-454; G-43 to L-454; E-44 to L-454; N-45 to L-454; T-46 to L-454; T-47 to L-454; L-48 to L-454; R-49 to L-454; C-50 to L-454; H-51 to L-454; L-52 to L-454; S-53 to L-454; P-54 to L-454; E-55 to L-454; K-56 to L-454; N-57 to L-454; A-58 to L-454; E-59 to L-454; D-60 to L-454; M-61 to L-454; E-62 to L-454; V-63 to L-454; R-64 to L-454; W-65 to L-454; F-66 to L-454; R-67 to L-454; S-68 to L-454; Q-69 to L-454; F-70 to L-454; S-71 to L-454; P-72 to L-454; A-73 to L-454; V-74 to L-454; F-75 to L-454; V-76 to L-454; Y-77 to L-454; K-78 to L-454; G-79 to L-454; G-80 to L-454; R-81 to L-454; E-82 to L-454; R-83 to L-454; T-84 to L-454; E-85 to L-454; E-86 to L-454; Q-87 to L-454; M-88 to L-454; E-89 to L-454; E-90 to L-454; Y-91 to L-454; R-92 to L-454; G-93 to L-454; R-94 to L-454; 1-95 to L-454; T-96 to L-454; F-97 to L-454; V-98 to L-454; S-99 to L-454; K-100 to L-454; D-101 to L-454; 1-102 to L-454; N-103 to L-454; R-104 to L-454; G- 105 to L-454; S-106 to L-454; V-107 to L-454; A-108 to L-454; L-109 to L-454; V-110 to L- 454; 1-111 to L-454; H-112 to L-454; N-113 to L-454; V-114 to L-454; T-115 to L-454; A- 116 to L-454; Q-l 17 to L-454; E-l 18 to L-454; N-l 19 to L-454; G-120 to L-454; 1-121 to L- 454; Y-122 to L-454; R-123 to L-454; C-124 to L-454; Y-125 to L-454; F-126 to L-454; Q- 127 to L-454; E-128 to L-454; G-129 to L-454; R-130 to L-454; S-131 to L-454; Y-132 to L- 454; D-133 to L-454; E-134 to L-454; A-135 to L-454; 1-136 to L-454; L-137 to L-454; R- 138 to L-454; L-139 to L-454; V-140 to L-454; V-141 to L-454; A-142 to L-454; G-143 to L-454; L-144 to L-454; G-145 to L-454; S-146 to L-454; K-147 to L-454; P-148 to L-454; L- 149 to L-454; 1-150 to L-454; E-151 to L-454; 1-152 to L-454; K-153 to L-454; A-154 to L- 454; Q-155 to L-454; E-156 to L-454; D-157 to L-454; G-158 to L-454; S-159 to L-454; I- 160 to L-454; W-161 to L-454; L-162 to L-454; E-163 to L-454; C-164 to L-454; 1-165 to L- 454; S-166 to L-454; G-167 to L-454; G-168 to L-454; W-169 to L-454; Y-170 to L-454; P- 171 to L-454; E-172 to L-454; P-173 to L-454; L-174 to L-454; T-175 to L-454; V-176 to L- 454; W-177 to L-454; R-178 to L-454; D-179 to L-454; P-180 to L-454; Y-181 to L-454; G- 182 to L-454; E-l 83 to L-454; V-184 to L-454; V-185 to L-454; P-186 to L-454; A-187 to L- 454; L-188 to L-454; K-189 to L-454; E-190 to L-454; V-191 to L-454; S-192 to L-454; I- 193 to L-454; A-194 to L-454; D-195 to L-454; A-196 to L-454; D-197 to L-454; G-198 to L-454; L-l 99 to L-454; F-200 to L-454; M-201 to L-454; V-202 to L-454; T-203 to L-454; T-204 to L-454; A-205 to L-454; V-206 to L-454; 1-207 to L-454; 1-208 to L-454; R-209 to L-454; D-210 to L-454; K-211 to L-454; Y-212 to L-454; V-213 to L-454; R-214 to L-454; N-215 to L-454; V-216 to L-454; S-217 to L-454; C-218 to L-454; S-219 to L-454; V-220 to L-454; N-221 to L-454; N-222 to L-454; T-223 to L-454; L-224 to L-454; L-225 to L-454; G-226 to L-454; Q-227 to L-454; E-228 to L-454; K-229 to L-454; E-230 to L-454; T-231 to L-454; V-232 to L-454; 1-233 to L-454; F-234 to L-454; 1-235 to L-454; P-236 to L-454; E- 237 to L-454; S-238 to L-454; F-239 to L-454; M-240 to L-454; P-241 to L-454; S-242 to L- 454; A-243 to L-454; S-244 to L-454; P-245 to L-454; W-246 to L-454; M-247 to L-454; V- 248 to L-454; A-249 to L-454; L-250 to L-454; A-251 to L-454; N-252 to L-454; 1-253 to L- 454; L-254 to L-454; T-255 to L-454; A-256 to L-454; S-257 to L-454; P-258 to L-454; W- 259 to L-454; M-260 to L-454; V-261 to L-454; S-262 to L-454; M-263 to L-454; T-264 to L-454; V-265 to L-454; 1-266 to L-454; L-267 to L-454; A-268 to L-454; V-269 to L-454; F- 270 to L-454; 1-271 to L-454; 1-272 to L-454; F-273 to L-454; M-274 to L-454; A-275 to L- 454; V-276 to L-454; S-277 to L-454; 1-278 to L-454; C-279 to L-454; C-280 to L-454; 1-281 to L-454; K-282 to L-454; K-283 to L-454; L-284 to L-454; Q-285 to L-454; R-286 to L-454; E-287 to L-454; K-288 to L-454; K-289 to L-454; 1-290 to L-454; L-291 to L-454; S-292 to L-454; G-293 to L-454; E-294 to L-454; K-295 to L-454; K-296 to L-454; V-297 to L-454; E-298 to L-454; Q-299 to L-454; E-300 to L-454; E-301 to L-454; K-302 to L-454; E-303 to L-454; 1-304 to L-454; A-305 to L-454; Q-306 to L-454; Q-307 to L-454; L-308 to L-454; Q- 309 to L-454; E-310 to L-454; E-311 to L-454; L-312 to L-454; R-313 to L-454; W-314 to L- 454; R-315 to L-454; R-316 to L-454; T-317 to L-454; F-318 to L-454; L-319 to L-454; H- 320 to L-454; A-321 to L-454; A-322 to L-454; D-323 to L-454; V-324 to L-454; V-325 to L-454; L-326 to L-454; D-327 to L-454; P-328 to L-454; D-329 to L-454; T-330 to L-454; A-331 to L-454; H-332 to L-454; P-333 to L-454; E-334 to L-454; L-335 to L-454; F-336 to L-454; L-337 to L-454; S-338 to L-454; E-339 to L-454; D-340 to L-454; R-341 to L-454; R- 342 to L-454; S-343 to L-454; V-344 to L-454; R-345 to L-454; R-346 to L-454; G-347 to L- 454; P-348 to L-454; Y-349 to L-454; R-350 to L-454; Q-351 to L-454; R-352 to L-454; V- 353 to L-454; P-354 to L-454; D-355 to L-454; Ν-356 to L-454; P-357 to L-454; E-358 to L- 454; R-359 to L-454; F-360 to L-454; D-361 to L-454; S-362 to L-454; Q-363 to L-454; P- 364 to L-454; C-365 to L-454; V-366 to L-454; L-367 to L-454; G-368 to L-454; W-369 to L-454; E-370 to L-454; S-371 to L-454; F-372 to L-454; A-373 to L-454; S-374 to L-454; G- 375 to L-454; K-376 to L-454; H-377 to L-454; Y-378 to L-454; R-379 to L-454; G-380 to L-454; N-381 to L-454; F-382 to L-454; T-383 to L-454; E-384 to L-454; W-385 to L-454; G-386 to L-454; P-387 to L-454; T-388 to L-454; R-389 to L-454; A-390 to L-454; Y-391 to L-454; R-392 to L-454; 1-393 to L-454; N-394 to L-454; S-395 to L-454; L-396 to L-454; D- 397 to L-454; S-398 to L-454; Q-399 to L-454; P-400 to L-454; C-401 to L-454; R-402 to L- 454; K-403 to L-454; P-404 to L-454; W-405 to L-454; P-406 to L-454; S-407 to L-454; Q- 408 to L-454; Q-409 to L-454; P-410 to L-454; P-411 to L-454; H-412 to L-454; N-413 to L- 454; P-414 to L-454; P-415 to L-454; N-416 to L-454; E-417 to L-454; R-418 to L-454; H- 419 to L-454; A-420 to L-454; L-421 to L-454; L-422 to L-454; P-423 to L-454; S-424 to L- 454; G-425 to L-454; H-426 to L-454; V-427 to L-454; R-428 to L-454; E-429 to L-454; H- 430 to L-454; L-431 to L-454; P-432 to L-454; A-433 to L-454; A-434 to L-454; F-435 to L- 454; F-436 to L-454; T-437 to L-454; P-438 to L-454; T-439 to L-454; P-440 to L-454; A- 441 to L-454; L-442 to L-454; C-443 to L-454; P-444 to L-454; S-445 to L-454; F-446 to L- 454; L-447 to L-454; L-448 to L-454; and/or L-449 to L-454 of SEQ DD NO: 17. Polynucleotides encoding these polypeptides are also encompassed by the mvention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%o, 91%, 98%), or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [151] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 7A-C (SEQ DD NO: 17), as described by the general formula 1- n, where n is an integer from 7 to 453, where n corresponds to the position ofthe amino acid residue identified in SEQ DD NO: 17. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group of C-terminal deletions: M-1 to W-453; M-1 to L-452; M- 1 to S-451; M-1 to T-450; M-1 to L-449; M-1 to L-448; M-1 to L-447; M-1 to F-446; M-1 to S-445; M-1 to P-444; M-1 to C-443; M-1 to L-442; M-1 to A-441; M-1 to P-440; M-1 to T- 439; M-1 to P-438; M-1 to T-437; M-1 to F-436; M-1 to F-435; M-1 to A-434; M-1 to A- 433; M-1 to P-432; M-1 to L-431; M-1 to H-430; M-1 to E-429; M-1 to R-428; M-1 to V- 427; M-1 to H-426; M-1 to G-425; M-1 to S-424; M-1 to P-423; M-1 to L-422; M-1 to L- 421; M-1 to A-420; M-1 to H-419; M-1 to R-418; M-1 to E-417; M-1 to N-416; M-1 to P- 415; M-1 to P-414; M-1 to N-413; M-1 to H-412; M-1 to P-411; M-1 to P-410; M-1 to Q- 409; M-1 to Q-408; M-1 to S-407; M-1 to P-406; M-1 to W-405; M-1 to P-404; M-1 to K- 403; M-1 to R-402; M-1 to C-401; M-1 to P-400; M-1 to Q-399; M-1 to S-398; M-1 to D- 397; M-1 to L-396; M-1 to S-395; M-1 to N-394; M-1 to 1-393; M-1 to R-392; M-1 to Y-391; M-1 to A-390; M-1 to R-389; M-1 to T-388; M-1 to P-387; M-1 to G-386; M-1 to W-385; M- 1 to E-384; M-1 to T-383; M-1 to F-382; M-1 to N-381; M-1 to G-380; M-1 to R-379; M-1 to Y-378; M-1 to H-377; M-1 to K-376; M-1 to G-375; M-1 to S-374; M-1 to A-373; M-1 to F- 372; M-1 to S-371; M-1 to E-370; M-1 to W-369; M-1 to G-368; M-1 to L-367; M-1 to V- 366; M-1 to C-365; M-1 to P-364; M-1 to Q-363; M-1 to S-362; M-1 to D-361; M-1 to F- 360; M-1 to R-359; M-1 to E-358; M-1 to P-357; M-1 to N-356; M-1 to D-355; M-1 to P- 354; M-1 to V-353; M-1 to R-352; M-1 to Q-351; M-1 to R-350; M-1 to Y-349; M-1 to P- 348; M-1 to G-347; M-1 to R-346; M-1 to R-345; M-1 to V-344; M-1 to S-343; M-1 to R- 342; M-1 to R-341; M-1 to D-340; M-1 to E-339; M-1 to S-338; M-1 to L-337; M-1 to F- 336; M-1 to L-335; M-1 to E-334; M-1 to P-333; M-1 to H-332; M-1 to A-331; M-1 to T- 330; M-1 to D-329; M-1 to P-328; M-1 to D-327; M-1 to L-326; M-1 to V-325; M-1 to V- 324; M-1 to D-323; M-1 to A-322; M-1 to A-321; M-1 to H-320; M-1 to L-319; M-1 to F- 318; M-1 to T-317; M-1 to R-316; M-1 to R-315; M-1 to W-314; M-1 to R-313; M-1 to L- 312; M-1 to E-311; M-1 to E-310; M-1 to Q-309; M-1 to L-308; M-1 to Q-307; M-1 to Q- 306; M-1 to A-305; M-1 to 1-304; M-1 to E-303; M-1 to K-302; M-1 to E-301; M-1 to E-300; M-1 to Q-299; M-1 to E-298; M-1 to V-297; M-1 to K-296; M-1 to K-295; M-1 to E-294; M- 1 to G-293; M-1 to S-292; M-1 to L-291; M-1 to 1-290; M-1 to K-289; M-1 to K-288; M-1 to E-287; M-1 to R-286; M-1 to Q-285; M-1 to L-284; M-1 to K-283; M-1 to K-282; M-1 to I- 281; M-1 to C-280; M-1 to C-279; M-1 to 1-278; M-1 to S-277; M-1 to V-276; M-1 to A-275; M-1 to M-274; M-1 to F-273; M-1 to 1-272; M-1 to 1-271; M-1 to F-270; M-1 to V-269; M-1 to A-268; M-1 to L-267; M-1 to 1-266; M-1 to V-265; M-1 to T-264; M-1 to M-263; M-1 to S-262; M-1 to V-261; M-1 to M-260; M-1 to W-259; M-1 to P-258; M-1 to S-257; M-1 to A- 256; M-1 to T-255; M-1 to L-254; M-1 to 1-253; M-1 to V-252; M-1 to A-251; M-1 to L-250; M-1 to A-249; M-1 to V-248; M-1 to M-247; M-1 to W-246; M-1 to P-245; M-1 to S-244; M-1 to A-243; M-1 to S-242; M-1 to P-241; M-1 to M-240; M-1 to F-239; M-1 to S-238; M- 1 to E-237; M-1 to P-236; M-1 to 1-235; M-1 to F-234; M-1 to 1-233; M-1 to V-232; M-1 to T-231; M-1 to E-230; M-1 to K-229; M-1 to E-228; M-1 to Q-227; M-1 to G-226; M-1 to L- 225; M-1 to L-224; M-1 to T-223; M-1 to N-222; M-1 to N-221; M-1 to V-220; M-1 to S- 219; M-1 to C-218; M-1 to S-217; M-1 to V-216; M-1 to N-215; M-1 to R-214; M-1 to V- 213; M-1 to Y-212; M-1 to K-211; M-1 to D-210; M-1 to R-209; M-1 to 1-208; M-1 to 1-207; M-1 to V-206; M-1 to A-205; M-1 to T-204; M-1 to T-203; M-1 to V-202; M-1 to M-201; M-1 to F-200; M-1 to L-199; M-1 to G-198; M-1 to D-197; M-1 to A-196; M-1 to D-195; M- 1 to A-194; M-1 to 1-193; M-1 to S-192; M-1 to V-191; M-1 to E-190; M-1 to K-189; M-1 to L-188; M-1 to A-187; M-1 to P-186; M-1 to V-185; M-1 to V-184; M-1 to E-183; M-1 to G- 182; M-1 to Y-181; M-1 to P-180; M-1 to D-179; M-1 to R-178; M-1 to W-177; M-1 to V- 176; M-1 to T-175; M-1 to L-174; M-1 to P-173; M-1 to E-172; M-1 to P-171; M-1 to Y-170; M-1 to W-169; M-1 to G-168; M-1 to G-167; M-1 to S-166; M-1 to 1-165; M-1 to C-164; M- 1 to E-163; M-1 to L-162; M-1 to W-161; M-1 to 1-160; M-1 to S-159; M-1 to G-158; M-1 to D-157; M-1 to E-156; M-1 to Q-155; M-1 to A-154; M-1 to K-153; M-1 to 1-152; M-1 to E- 151; M-1 to 1-150; M-1 to L-149; M-1 to P-148; M-1 to K-147; M-1 to S-146; M-1 to G-145; M-1 to L-144; M-1 to G-143; M-1 to A-142; M-1 to V-141; M-1 to V-140; M-1 to L-139; M- 1 to R-138; M-1 to L-137; M-1 to 1-136; M-1 to A-135; M-1 to E-134; M-1 to D-133; M-1 to Y-132; M-1 to S-131; M-1 to R-130; M-1 to G-129; M-1 to E-128; M-1 to Q-127; M-1 to F- 126; M-1 to Y-125; M-1 to C-124; M-1 to R-123; M-1 to Y-122; M-1 to 1-121; M-1 to G- 120; M-1 to N-119; M-1 to E-l 18; M-1 to Q-117; M-1 to A-116; M-1 to T-115; M-1 to V- 114; M-1 to N-113; M-1 to H-112; M-1 to 1-111; M-1 to V-110; M-1 to L-109; M-1 to A- 108; M-1 to V-107; M-1 to S-106; M-1 to G-105; M-1 to R-104; M-1 to N-103; M-1 to I- 102; M-1 to D-101; M-1 to K-100; M-1 to S-99; M-1 to V-98; M-1 to F-97; M-1 to T-96; M- 1 to 1-95; M-1 to R-94; M-1 to G-93; M-1 to R-92; M-1 to Y-91; M-1 to E-90; M-1 to E-89; M-1 to M-88; M-1 to Q-87; M-1 to E-86; M-1 to E-85; M-1 to T-84; M-1 to R-83; M-1 to E- 82; M-1 to R-81; M-1 to G-80; M-1 to G-79; M-1 to K-78; M-1 to Y-77; M-1 to V-76; M-1 to F-75; M-1 to V-74; M-1 to A-73; M-1 to P-72; M-1 to S-71; M-1 to F-70; M-1 to Q-69; M-1 to S-68; M-1 to R-67; M-1 to F-66; M-1 to W-65; M-1 to R-64; M-1 to V-63; M-1 to E- 62; M-1 to M-61; M-1 to D-60; M-1 to E-59; M-1 to A-58; M-1 to N-57; M-1 to K-56; M-1 to E-55; M-1 to P-54; M-1 to S-53; M-1 to L-52; M-1 to H-51; M-1 to C-50; M-1 to R-49; M-1 to L-48; M-1 to T-47; M-1 to T-46; M-1 to N-45; M-1 to E-44; M-1 to G-43; M-1 to V- 42; M-1 to M-41; M-1 to A-40; M-1 to L-39; M-1 to 1-38; M-1 to P-37; M-1 to N-36; M-1 to A-35; M-1 to P-34; M-1 to G-33; M-1 to V-32; M-1 to V-31; M-1 to T-30; M-1 to F-29; M-1 to Q-28; M-1 to A-27; M-1 to S-26; M-1 to V-25; M-1 to L-24; M-1 to A-23; M-1 to C-22; M-1 to L-21; M-1 to S-20; M-1 to L-19; M-1 to L-18; M-1 to L-17; M-1 to L-16; M-1 to L- 15; M-1 to S-14; M-1 to A-13; M-1 to P-12; M-1 to R-ll; M-1 to S-10; M-1 to F-9; M-1 to H-8; and/or M-1 to L-7 of SEQ DD NO: 17. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [152] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protein results in modification of loss of one or more biological functions ofthe protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to generate antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority ofthe residues of the complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [153] More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of N-terminal deletions of the mature extracellular portion of the B7-H11 protein (SEQ ED NO: 40): F-29 to L-254; T-30 to L-254; V-31 to L-254; V-32 to L-254; G-33 to L-254; P-34 to L- 254; A-35 to L-254; N-36 to L-254; P-37 to L-254; 1-38 to L-254; L-39 to L-254; A-40 to L- 254; M-41 to L-254; V-42 to L-254; G-43 to L-254; E-44 to L-254; N-45 to L-254; T-46 to L-254; T-47 to L-254; L-48 to L-254; R-49 to L-254; C-50 to L-254; H-51 to L-254; L-52 to L-254; S-53 to L-254; P-54 to L-254; E-55 to L-254; K-56 to L-254; N-57 to L-254; A-58 to L-254; E-59 to L-254; D-60 to L-254; M-61 to L-254; E-62 to L-254; V-63 to L-254; R-64 to L-254; W-65 to L-254; F-66 to L-254; R-67 to L-254; S-68 to L-254; Q-69 to L-254; F-70 to L-254; S-71 to L-254; P-72 to L-254; A-73 to L-254; V-74 to L-254; F-75 to L-254; V-76 to L-254; Y-77 to L-254; K-78 to L-254; G-79 to L-254; G-80 to L-254; R-81 to L-254; E-82 to L-254; R-83 to L-254; T-84 to L-254; E-85 to L-254; E-86 to L-254; Q-87 to L-254; M-88 to L-254; E-89 to L-254; E-90 to L-254; Y-91 to L-254; R-92 to L-254; G-93 to L-254; R-94 to L-254; 1-95 to L-254; T-96 to L-254; F-97 to L-254; V-98 to L-254; S-99 to L-254; K-100 to L-254; D-101 to L-254; 1-102 to L-254; N-103 to L-254; R-104 to L-254; G-105 to L-254; S- 106 to L-254; V-107 to L-254; A-108 to L-254; L-109 to L-254; V-110 to L-254; 1-111 to L- 254; H-112 to L-254; N-113 to L-254; V-114 to L-254; T-115 to L-254; A-116 to L-254; Q- 117 to L-254; E-l 18 to L-254; N-119 to L-254; G-120 to L-254; 1-121 to L-254; Y-122 to L- 254; R-123 to L-254; C-124 to L-254; Y-125 to L-254; F-126 to L-254; Q-127 to L-254; E- 128 to L-254; G-129 to L-254; R-130 to L-254; S-131 to L-254; Y-132 to L-254; D-133 to L- 254; E-134 to L-254; A-135 to L-254; 1-136 to L-254; L-137 to L-254; R-138 to L-254; L- 139 to L-254; V-140 to L-254; V-141 to L-254; A- 142 to L-254; G-143 to L-254; L-144 to L-254; G-145 to L-254; S-146 to L-254; K-147 to L-254; P-148 to L-254; L-149 to L-254; I- 150 to L-254; E-151 to L-254; 1-152 to L-254; K-153 to L-254; A-154 to L-254; Q-155 to L- 254; E-156 to L-254; D-157 to L-254; G-158 to L-254; S-159 to L-254; 1-160 to L-254; W- 161 to L-254; L-162 to L-254; E-163 to L-254; C-164 to L-254; 1-165 to L-254; S-166 to L- 254; G-167 to L-254; G-168 to L-254; W-169 to L-254; Y-170 to L-254; P-171 to L-254; E- 172 to L-254; P-173 to L-254; L-174 to L-254; T-175 to L-254; V-176 to L-254; W-177 to L- 254; R-178 to L-254; D-179 to L-254; P-180 to L-254; Y-181 to L-254; G-182 to L-254; E- 183 to L-254; V-184 to L-254; V-185 to L-254; P-186 to L-254; A-187 to L-254; L-188 to L- 254; K-189 to L-254; E-190 to L-254; V-191 to L-254; S-192 to L-254; 1-193 to L-254; A- 194 to L-254; D-195 to L-254; A-196 to L-254; D-197 to L-254; G-198 to L-254; L-199 to L-254; F-200 to L-254; M-201 to L-254; V-202 to L-254; T-203 to L-254; T-204 to L-254; A-205 to L-254; V-206 to L-254; 1-207 to L-254; 1-208 to L-254; R-209 to L-254; D-210 to L-254; K-211 to L-254; Y-212 to L-254; V-213 to L-254; R-214 to L-254; N-215 to L-254; V-216 to L-254; S-217 to L-254; C-218 to L-254; S-219 to L-254; V-220 to L-254; N-221 to L-254; N-222 to L-254; T-223 to L-254; L-224 to L-254; L-225 to L-254; G-226 to L-254; Q-227 to L-254; E-228 to L-254; K-229 to L-254; E-230 to L-254; T-231 to L-254; V-232 to L-254; 1-233 to L-254; F-234 to L-254; 1-235 to L-254; P-236 to L-254; E-237 to L-254; S- 238 to L-254; F-239 to L-254; M-240 to L-254; P-241 to L-254; S-242 to L-254; A-243 to L- 254; S-244 to L-254; P-245 to L-254; W-246 to L-254; M-247 to L-254; V-248 to L-254; and/or A-249 to L-254 of SEQ ED NO: 17. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [154] Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of C-terminal deletions ofthe mature extracellular portion of the B7-H11 protein (SEQ DD NO: 40): Q-28 to 1-253; Q-28 to V-252; Q-28 to A-251; Q-28 to L-250; Q-28 to A-249; Q-28 to V-248; Q-28 to M-247; Q-28 to W-246; Q-28 to P-245; Q-28 to S-244; Q-28 to A-243; Q-28 to S-242; Q-28 to P-241; Q-28 to M-240; Q-28 to F-239; Q-28 to S-238; Q-28 to E-237; Q- 28 to P-236; Q-28 to 1-235; Q-28 to F-234; Q-28 to 1-233; Q-28 to V-232; Q-28 to T-231; Q- 28 to E-230; Q-28 to K-229; Q-28 to E-228; Q-28 to Q-227; Q-28 to G-226; Q-28 to L-225; Q-28 to L-224; Q-28 to T-223; Q-28 to N-222; Q-28 to N-221; Q-28 to V-220; Q-28 to S- 219; Q-28 to C-218; Q-28 to S-217; Q-28 to V-216; Q-28 to N-215; Q-28 to R-214; Q-28 to V-213; Q-28 to Y-212; Q-28 to K-211; Q-28 to D-210; Q-28 to R-209; Q-28 to 1-208; Q-28 to 1-207; Q-28 to V-206; Q-28 to A-205; Q-28 to T-204; Q-28 to T-203; Q-28 to V-202; Q- 28 to M-201; Q-28 to F-200; Q-28 to L-199; Q-28 to G-198; Q-28 to D-197; Q-28 to A-196; Q-28 to D-195; Q-28 to A-194; Q-28 to 1-193; Q-28 to S-192; Q-28 to V-191; Q-28 to E-190; Q-28 to K-189; Q-28 to L-188; Q-28 to A-187; Q-28 to P-186; Q-28 to V-185; Q-28 to V- 184; Q-28 to E-183; Q-28 to G-182; Q-28 to Y-181; Q-28 to P-180; Q-28 to D-179; Q-28 to R-178; Q-28 to W-177; Q-28 to V-176; Q-28 to T-175; Q-28 to L-174; Q-28 to P-173; Q-28 to E-172; Q-28 to P-171; Q-28 to Y-170; Q-28 to W-169; Q-28 to G-168; Q-28 to G-167; Q- 28 to S-166; Q-28 to 1-165; Q-28 to C-164; Q-28 to E-163; Q-28 to L-162; Q-28 to W-161; Q-28 to 1-160; Q-28 to S-159; Q-28 to G-158; Q-28 to D-157; Q-28 to E-156; Q-28 to Q-155; Q-28 to A-154; Q-28 to K-153; Q-28 to 1-152; Q-28 to E-151; Q-28 to 1-150; Q-28 to L-149; Q-28 to P-148; Q-28 to K-147; Q-28 to S-146; Q-28 to G-145; Q-28 to L-144; Q-28 to G- 143; Q-28 to A-142; Q-28 to V-141; Q-28 to V-140; Q-28 to L-139; Q-28 to R-138; Q-28 to L-137; Q-28 to 1-136; Q-28 to A-135; Q-28 to E-134; Q-28 to D-133; Q-28 to Y-132; Q-28 to S-131; Q-28 to R-130; Q-28 to G-129; Q-28 to E-128; Q-28 to Q-127; Q-28 to F-126; Q- 28 to Y-125; Q-28 to C-124; Q-28 to R-123; Q-28 to Y-122; Q-28 to 1-121; Q-28 to G-120; Q-28 to N-119; Q-28 to E-l 18; Q-28 to Q-117; Q-28 to A-116; Q-28 to T-115; Q-28 to V- 114; Q-28 to N-113; Q-28 to H-112; Q-28 to 1-111; Q-28 to V-110; Q-28 to L-109; Q-28 to A-108; Q-28 to V-107; Q-28 to S-106; Q-28 to G-105; Q-28 to R-104; Q-28 to N-103; Q-28 to 1-102; Q-28 to D-101; Q-28 to K-100; Q-28 to S-99; Q-28 to V-98; Q-28 to F-97; Q-28 to T-96; Q-28 to 1-95; Q-28 to R-94; Q-28 to G-93; Q-28 to R-92; Q-28 to Y-91; Q-28 to E-90; Q-28 to E-89; Q-28 to M-88; Q-28 to Q-87; Q-28 to E-86; Q-28 to E-85; Q-28 to T-84; Q-28 to R-83; Q-28 to E-82; Q-28 to R-81; Q-28 to G-80; Q-28 to G-79; Q-28 to K-78; Q-28 to Y- 77; Q-28 to V-76; Q-28 to F-75; Q-28 to V-74; Q-28 to A-73; Q-28 to P-72; Q-28 to S-71; Q- 28 to F-70; Q-28 to Q-69; Q-28 to S-68; Q-28 to R-67; Q-28 to F-66; Q-28 to W-65; Q-28 to R-64; Q-28 to V-63; Q-28 to E-62; Q-28 to M-61; Q-28 to D-60; Q-28 to E-59; Q-28 to A- 58; Q-28 to N-57; Q-28 to K-56; Q-28 to E-55; Q-28 to P-54; Q-28 to S-53; Q-28 to L-52; Q- 28 to H-51; Q-28 to C-50; Q-28 to R-49; Q-28 to L-48; Q-28 to T-47; Q-28 to T-46; Q-28 to N-45; Q-28 to E-44; Q-28 to G-43; Q-28 to V-42; Q-28 to M-41; Q-28 to A-40; Q-28 to L- 39; Q-28 to 1-38; Q-28 to P-37; Q-28 to N-36; Q-28 to A-35; and/or Q-28 to P-34 of SEQ DD NO: 17. Polynucleotides encoding these polypeptides are also encompassed by the mvention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%), 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [155] In addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of SEQ DD NO: 17, where n and m are integers as described above. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [156] The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% identical to a polypeptide sequence set forth herein as m-n. In preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [157] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 448 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 448 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [158] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [159] It has been discovered that this gene is expressed in dendritic cells, T cells, activated T cells, T cell lymphoma, and Hodgkin's lymphoma. [160] Polynucleotides, translation products and antibodies corresponding to this gene are useful as reagents for differential identification of immune system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly involving T cells, in addition to other immune system cells such as dendritic cells, neutrophils, and leukocytes. Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification of the tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity of the B7-H11 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activities as are disclosed herein (e.g. T cell modulated activities). [161] For a number of disorders of the above tissues or cells, particularly ofthe immune system, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., immune, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [162] The tissue distribution in immune cells (e.g., T-cells, dendritic cells), and the homology to members of the B7 family of ligands, indicates that the polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells, neutrophils, dendritic cells, leukocytes, and other immune system cells. In particular, the translation product of the B7- Hl 1 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation ofthe expression of particular cytokines, for example. [163] More generally, the tissue distribution in immune system cells indicates that this gene product may be involved in the regulation of cytokine production, antigen presentation, or other processes that may also suggest a usefulness in the treatment of cancer (e.g. by boosting immune responses). Since the gene is expressed in cells of immune system origin, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. [164] Polynucleotides, translation products and antibodies corresponding to this gene may be also used as an agent for immunological disorders including arthritis, asthma, immune deficiency diseases such as ADDS, leukemia, rheumatoid arthritis, inflammatory bowel disease, sepsis, acne, and psoriasis, hi addition, this gene product may have commercial utility in the expansion of stem cells and committed progenitors of various blood lineages, and in the differentiation and/or proliferation of various cell types. Additionally, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. Furthermore, the protein may also be used to determine biological activity, to raise antibodies, as tissue markers, to isolate cognate ligands or receptors, to identify agents that modulate their interactions, in addition to its use as a nutritional supplement. FEATURES OF PROTEIN ENCODED BY GENE NO: 5 [165] For purposes of this application, this gene and its corresponding translation product are known as the B7-H10 gene and B7-H10 protein. This protein is believed to reside as a cell-surface molecule, and the transmembrane domain of this protein is believed to approximately embody the following preferred amino acid residues: GPTGARLTLVLALTVILELT (SEQ ED NO: 42). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 91%, 98%, or 99%) identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. As one skilled in the art would understand, the transmembrane domain was predicted using computer analysis, and the transmembrane domain may vary by one, two, three, four, five, six, seven, eight, nine, and/or ten amino acids from the N and C-termini of the predicted transmembrane domain. [166] The B7-H10 gene shares sequence homology with members of the B7 family of ligands. These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation and death of T cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation of the T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists such as antibodies or small molecules directed against the B7-H10 gene are useful for treating T cell mediated immune system disorders. [167] Preferred polypeptides of the present invention comprise, or alternatively consist of, one, two, three, four, five, six, seven, or all seven of the immunogenic epitopes of the extracellular portion of the B7-H10 protein shown in SEQ ED NO: 18 as residues: Glu-34 to Asp-41, Ser-56 to Tyr-61, Pro-152 to Phe-159, Asρ-166 to Lys-174, Ala-181 to Asp-200, Tyr-232 to Gly-244, and Pro-381 to Ser-393. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [168] In additional nonexclusive embodiments, polypeptides of the invention comprises, or alternatively consists of, the following amino acid sequence: [169] The extracellular domain of the B7-H10 protein: MREIVWYRVTDGGTIKQKIFTFDAMFSTNYSFiMENYRKREDLVYQSTVRLPEVRISD NGPYECHVGIYDRATREKVVLASGNIFLNVMAPPTSIEVVAADTPAPFSRYQAQNFT LVCWSGGKPAPMVYFKRDGEPIDAVPLSEPPAASSGPLQDSRPFRSLLHRDLDDTKM QKSLSLLDAENRGGRPYTERPSRGLTPDPNTLLQPTTENIPETVVSREFPRWVHSAEPT YFLRHSRTPSSDGTVEVRALLTWTLNPQDDNEALFSCEVKHPALSMPMQAEVTLVAP KGPKIVMTPSRARVGDTVRILVHGFQNEVFPEPMFTWTRVGSRLLDGSAEFDGKELV LERVPAELNGSMYRCTAQNPLGSTDTHTRLIVFENPNIPRGTEDSNGSI (SEQ D NO: 43). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [170] Also preferred are polypeptides comprising, or alternatively consisting of, fragments ofthe extracellular portion ofthe B7-H10 protein demonstrating functional activity (SEQ DD NO: 43). Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [171] By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H10 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H10 polypeptide for binding) to an anti-B7-H10 antibody], immunogenicity (ability to generate antibody which binds to a B7-H10 polypeptide), ability to form multimers with B7-H10 polypeptides ofthe invention, and ability to bind to a receptor for a B7-H10 polypeptide. [172] Figures 9A-B show the nucleotide (SEQ JJD NO: 6) and deduced amino acid sequence (SEQ DD NO: 18) corresponding to this gene. Figure 10 shows an analysis of the amino acid sequence (SEQ DD NO: 18). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. hi the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 10 are also represented in tabular form in Table 7. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XJV. The column headings refer to the following features of the amino acid sequence presented in Figure 10, and Table 7: "Res": amino acid residue of SEQ DD NO: 18 and Figures 9A-B; "Position": position of the corresponding residue within SEQ ED NO: 18 and Figures 9A-B; I: Alpha, Regions - Garnier-Robson; II: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier-Robson; IV: Beta, Regions - Chou-Fasman; V: Turn, Regions - Garnier-Robson; VI: Turn, Regions - Chou-Fasman; VII: Coil, Regions - Garnier-Robson; VDI: Hydrophilicity Plot - Kyte-Doolittle; LX: Hydrophobicity Plot - Hopp-Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; XII: Flexible Regions - Karplus-Schulz; XDI: Antigenic Index - Jameson- Wolf; and XIV: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more of the following regions: alpha-helix and alpha-helix forming regions ("alpha- regions"), beta-sheet and beta-sheet forming regions ("beta-regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes of the protein set forth in Figure 10 and/or Table 7, as described above, was generated using the various modules and algorithms of the DNA*STAR set on default parameters. In a preferred embodiment, the data presented in columns VDI, IX, XHT, and XIV of Table 7 can be used to determine regions of the protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns VDI, DC, XDI, and/or XIV by choosing values which represent regions of the polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 10, but may, as shown in Table 7, be represented or identified by using tabular representations ofthe data presented in Figure 10. The DNA*STAR computer algorithm used to generate Figure 10 (set on the original default parameters) was used to present the data in Figure 10 in a tabular format (See Table 7). The tabular format of the data in Figure 10 (See Table 7) is used to easily determine specific boundaries of a preferred region. [173] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ DD NO: 6, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt, still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 6. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ D NO: 6. hi this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ ED NO: 6, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. In additional embodiments, the polynucleotides ofthe invention encode functional attributes ofthe corresponding protein. [174] Preferred polypeptide fragments of the invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the polypeptide can be described by the general formula m-414 where m is an integer from 2 to 409, where m corresponds to the position of the amino acid residue identified in SEQ DD NO: 18. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: R-2 to T-414; E- 3 to T-414; 1-4 to T-414; V-5 to T-414; W-6 to T-414; Y-7 to T-414; R-8 to T-414; V-9 to T- 414; T-10 to T-414; D-l l to T-414; G-12 to T-414; G-13 to T-414; T-14 to T-414; 1-15 to T- 414; K-16 to T-414; Q-17 to T-414; K-18 to T-414; 1-19 to T-414; F-20 to T-414; T-21 to T- 414; F-22 to T-414; D-23 to T-414; A-24 to T-414; M-25 to T-414; F-26 to T-414; S-27 to T- 414; T-28 to T-414; N-29 to T-414; Y-30 to T-414; S-31 to T-414; H-32 to T-414; M-33 to T-414; E-34 to T-414; N-35 to T-414; Y-36 to T-414; R-37 to T-414; K-38 to T-414; R-39 to T-414; E-40 to T-414; D-41 to T-414; L-42 to T-414; V-43 to T-414; Y-44 to T-414; Q-45 to T-414; S-46 to T-414; T-47 to T-414; V-48 to T-414; R-49 to T-414; L-50 to T-414; P-51 to T-414; E-52 to T-414; V-53 to T-414; R-54 to T-414; 1-55 to T-414; S-56 to T-414; D-57 to T-414; N-58 to T-414; G-59 to T-414; P-60 to T-414; Y-61 to T-414; E-62 to T-414; C-63 to T-414; H-64 to T-414; V-65 to T-414; G-66 to T-414; 1-67 to T-414; Y-68 to T-414; D-69 to T-414; R-70 to T-414; A-71 to T-414; T-72 to T-414; R-73 to T-414; E-74 to T-414; K-75 to T-414; V-76 to T-414; V-77 to T-414; L-78 to T-414; A-79 to T-414; S-80 to T-414; G-81 to T-414; N-82 to T-414; 1-83 to T-414; F-84 to T-414; L-85 to T-414; N-86 to T-414; V-87 to T-414; M-88 to T-414; A-89 to T-414; P-90 to T-414; P-91 to T-414; T-92 to T-414; S-93 to T-414; 1-94 to T-414; E-95 to T-414; V-96 to T-414; V-97 to T-414; A-98 to T-414; A-99 to T-414; D-100 to T-414; T-101 to T-414; P-102 to T-414; A-103 to T-414; P-104 to T-414; F- 105 to T-414; S-106 to T-414; R-107 to T-414; Y-108 to T-414; Q-109 to T-414; A-110 to T- 414; Q-lll to T-414; N-112 to T-414; F-113 to T-414; T-114 to T-414; L-115 to T-414; V- 116 to T-414; C-l 17 to T-414; 1-118 to T-414; V-119 to T-414; S-120 to T-414; G-121 to T- 414; G-122 to T-414; K-123 to T-414; P-124 to T-414; A-125 to T-414; P-126 to T-414; M- 127 to T-414; V-128 to T-414; Y-129 to T-414; F-130 to T-414; K-131 to T-414; R-132 to T- 414; D-133 to T-414; G-134 to T-414; E-135 to T-414; P-136 to T-414; 1-137 to T-414; D- 138 to T-414; A-139 to T-414; V-140 to T-414; P-141 to T-414; L-142 to T-414; S-143 to T- 414; E-144 to T-414; P-145 to T-414; P-146 to T-414; A-147 to T-414; A-148 to T-414; S- 149 to T-414; S-150 to T-414; G-151 to T-414; P-152 to T-414; L-153 to T-414; Q-154 to T- 414; D-155 to T-414; S-156 to T-414; R-157 to T-414; P-158 to T-414; F-159 to T-414; R- 160 to T-414; S-161 to T-414; L-162 to T-414; L-163 to T-414; H-164 to T-414; R-165 to T- 414; D-166 to T-414; L-167 to T-414; D-168 to T-414; D-169 to T-414; T-170 to T-414; K- 171 to T-414; M-172 to T-414; Q-173 to T-414; K-174 to T-414; S-175 to T-414; L-176 to T-414; S-177 to T-414; L-178 to T-414; L-179 to T-414; D-180 to T-414; A-181 to T-414; E- 182 to T-414; N-183 to T-414; R-184 to T-414; G-185 to T-414; G-186 to T-414; R-187 to T-414; P-188 to T-414; Y-189 to T-414; T-190 to T-414; E-191 to T-414; R-192 to T-414; P- 193 to T-414; S-194 to T-414; R-195 to T-414; G-196 to T-414; L-197 to T-414; T-198 to T- 414; P-199 to T-414; D-200 to T-414; P-201 to T-414; N-202 to T-414; 1-203 to T-414; L- 204 to T-414; L-205 to T-414; Q-206 to T-414; P-207 to T-414; T-208 to T-414; T-209 to T- 414; E-210 to T-414; N-211 to T-414; 1-212 to T-414; P-213 to T-414; E-214 to T-414; T- 215 to T-414; V-216 to T-414; V-217 to T-414; S-218 to T-414; R-219 to T-414; E-220 to T- 414; F-221 to T-414; P-222 to T-414; R-223 to T-414; W-224 to T-414; V-225 to T-414; H- 226 to T-414; S-227 to T-414; A-228 to T-414; E-229 to T-414; P-230 to T-414; T-231 to T- 414; Y-232 to T-414; F-233 to T-414; L-234 to T-414; R-235 to T-414; H-236 to T-414; S- 237 to T-414; R-238 to T-414; T-239 to T-414; P-240 to T-414; S-241 to T-414; S-242 to T- 414; D-243 to T-414; G-244 to T-414; T-245 to T-414; V-246 to T-414; E-247 to T-414; V- 248 to T-414; R-249 to T-414; A-250 to T-414; L-251 to T-414; L-252 to T-414; T-253 to T- 414; W-254 to T-414; T-255 to T-414; L-256 to T-414; N-257 to T-414; P-258 to T-414; Q- 259 to T-414; 1-260 to T-414; D-261 to T-414; N-262 to T-414; E-263 to T-414; A-264 to T- 414; L-265 to T-414; F-266 to T-414; S-267 to T-414; C-268 to T-414; E-269 to T-414; V- 270 to T-414; K-271 to T-414; H-272 to T-414; P-273 to T-414; A-274 to T-414; L-275 to T- 414; S-276 to T-414; M-277 to T-414; P-278 to T-414; M-279 to T-414; Q-280 to T-414; A- 281 to T-414; E-282 to T-414; V-283 to T-414; T-284 to T-414; L-285 to T-414; V-286 to T- 414; A-287 to T-414; P-288 to T-414; K-289 to T-414; G-290 to T-414; P-291 to T-414; K- 292 to T-414; 1-293 to T-414; V-294 to T-414; M-295 to T-414; T-296 to T-414; P-297 to T- 414; S-298 to T-414; R-299 to T-414; A-300 to T-414; R-301 to T-414; V-302 to T-414; G- 303 to T-414; D-304 to T-414; T-305 to T-414; V-306 to T-414; R-307 to T-414; 1-308 to T- 414; L-309 to T-414; V-310 to T-414; H-311 to T-414; G-312 to T-414; F-313 to T-414; Q- 314 to T-414; N-315 to T-414; E-316 to T-414; V-317 to T-414; F-318 to T-414; P-319 to T- 414; E-320 to T-414; P-321 to T-414; M-322 to T-414; F-323 to T-414; T-324 to T-414; W- 325 to T-414; T-326 to T-414; R-327 to T-414; V-328 to T-414; G-329 to T-414; S-330 to T- 414; R-331 to T-414; L-332 to T-414; L-333 to T-414; D-334 to T-414; G-335 to T-414; S- 336 to T-414; A-337 to T-414; E-338 to T-414; F-339 to T-414; D-340 to T-414; G-341 to T- 414; K-342 to T-414; E-343 to T-414; L-344 to T-414; V-345 to T-414; L-346 to T-414; E- 347 to T-414; R-348 to T-414; V-349 to T-414; P-350 to T-414; A-351 to T-414; E-352 to T- 414; L-353 to T-414; N-354 to T-414; G-355 to T-414; S-356 to T-414; M-357 to T-414; Y- 358 to T-414; R-359 to T-414; C-360 to T-414; T-361 to T-414; A-362 to T-414; Q-363 to T- 414; N-364 to T-414; P-365 to T-414; L-366 to T-414; G-367 to T-414; S-368 to T-414; T- 369 to T-414; D-370 to T-414; T-371 to T-414; H-372 to T-414; T-373 to T-414; R-374 to T- 414; L-375 to T-414; 1-376 to T-414; V-377 to T-414; F-378 to T-414; E-379 to T-414; N- 380 to T-414; P-381 to T-414; N-382 to T-414; 1-383 to T-414; P-384 to T-414; R-385 to T- 414; G-386 to T-414; T-387 to T-414; E-388 to T-414; D-389 to T-414; S-390 to T-414; N- 391 to T-414; G-392 to T-414; S-393 to T-414; 1-394 to T-414; G-395 to T-414; P-396 to T- 414; T-397 to T-414; G-398 to T-414; A-399 to T-414; R-400 to T-414; L-401 to T-414; T- 402 to T-414; L-403 to T-414; V-404 to T-414; L-405 to T-414; A-406 to T-414; L-407 to T- 414; T-408 to T-414; and/or V-409 to T-414 of SEQ DD NO: 18. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [175] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 9A-B (SEQ DD NO: 18), as described by the general formula 1- n, where n is an integer from 7 to 413, where n corresponds to the position ofthe amino acid residue identified in SEQ ED NO: 18. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group of C-terminal deletions: M-1 to L-413; M-1 to E-412; M-1 to L-411; M-1 to 1-410; M-1 to V-409; M-1 to T-408; M-1 to L-407; M-1 to A-406; M-1 to L-405; M-1 to V-404; M-1 to L-403; M-1 to T-402; M-1 to L-401; M-1 to R-400; M-1 to A- 399; M-1 to G-398; M-1 to T-397; M-1 to P-396; M-1 to G-395; M-1 to 1-394; M-1 to S-393; M-1 to G-392; M-1 to N-391; M-1 to S-390; M-1 to D-389; M-1 to E-388; M-1 to T-387; M- 1 to G-386; M-1 to R-385; M-1 to P-384; M-1 to 1-383; M-1 to N-382; M-1 to P-381; M-1 to N-380; M-1 to E-379; M-1 to F-378; M-1 to V-377; M-1 to 1-376; M-1 to L-375; M-1 to R- 374; M-1 to T-373; M-1 to H-372; M-1 to T-371; M-1 to D-370; M-1 to T-369; M-1 to S- 368; M-1 to G-367; M-1 to L-366; M-1 to P-365; M-1 to N-364; M-1 to Q-363; M-1 to A- 362; M-1 to T-361; M-1 to C-360; M-1 to R-359; M-1 to Y-358; M-1 to M-357; M-1 to S- 356; M-1 to G-355; M-1 to N-354; M-1 to L-353; M-1 to E-352; M-1 to A-351; M-1 to P- 350; M-1 to V-349; M-1 to R-348; M-1 to E-347; M-1 to L-346; M-1 to V-345; M-1 to L- 344; M-1 to E-343; M-1 to K-342; M-1 to G-341; M-1 to D-340; M-1 to F-339; M-1 to E- 338; M-1 to A-337; M-1 to S-336; M-1 to G-335; M-1 to D-334; M-1 to L-333; M-1 to L- 332; M-1 to R-331; M-1 to S-330; M-1 to G-329; M-1 to V-328; M-1 to R-327; M-1 to T- 326; M-1 to W-325; M-1 to T-324; M-1 to F-323; M-1 to M-322; M-1 to P-321; M-1 to E- 320; M-1 to P-319; M-1 to F-318; M-1 to V-317; M-1 to E-316; M-1 to N-315; M-1 to Q- 314; M-1 to F-313; M-1 to G-312; M-1 to H-311; M-1 to V-310; M-1 to L-309; M-1 to 1-308; M-1 to R-307; M-1 to V-306; M-1 to T-305; M-1 to D-304; M-1 to G-303; M-1 to V-302; M- 1 to R-301; M-1 to A-300; M-1 to R-299; M-1 to S-298; M-1 to P-297; M-1 to T-296; M-1 to M-295; M-1 to V-294; M-1 to 1-293; M-1 to K-292; M-1 to P-291; M-1 to G-290; M-1 to K- 289; M-1 to P-288; M-1 to A-287; M-1 to V-286; M-1 to L-285; M-'l to T-284; M-1 to V- 283; M-1 to E-282; M-1 to A-281; M-1 to Q-280; M-1 to M-279; M-1 to P-278; M-1 to M- 277; M-1 to S-276; M-1 to L-275; M-1 to A-274; M-1 to P-273; M-1 to H-272; M-1 to K- 271; M-1 to V-270; M-1 to E-269; M-1 to C-268; M-1 to S-267; M-1 to F-266; M-1 to L- 265; M-1 to A-264; M-1 to E-263; M-1 to N-262; M-1 to D-261; M-1 to 1-260; M-1 to Q- 259; M-1 to P-258; M-1 to N-257; M-1 to L-256; M-1 to T-255; M-1 to W-254; M-1 to T- 253; M-1 to L-252; M-1 to L-251; M-1 to A-250; M-1 to R-249; M-1 to V-248; M-1 to E- 247; M-1 toV-246; M-1 to T-245; M-1 to G-244; M-1 to D-243; M-1 to S-242; M-1 to S- 241; M-1 to P-240; M-1 to T-239; M-1 to R-238; M-1 to S-237; M-1 to H-236; M-1 to R- 235; M-1 to L-234; M-1 to F-233; M-1 to Y-232; M-1 to T-231; M-1 to P-230; M-1 to E-229; M-1 to A-228; M-1 to S-227; M-1 to H-226; M-1 to V-225; M-1 to W-224; M-1 to R-223; M-1 to P-222; M-1 to F-221; M-1 to E-220; M-1 to R-219; M-1 to S-218; M-1 to V-217; M-1 to V-216; M-1 to T-215; M-1 to E-214; M-1 to P-213; M-1 to 1-212; M-1 to N-211; M-1 to E-210; M-1 to T-209; M-1 to T-208; M-1 to P-207; M-1 to Q-206; M-1 to L-205; M-1 to L- 204; M-1 to 1-203; M-1 to N-202; M-1 to P-201; M-1 to D-200; M-1 to P-199; M-1 to T-198; M-1 to L-197; M-1 to G-196; M-1 to R-195; M-1 to S-194; M-1 to P-193; M-1 to R-192; M- 1 to E-191; M-1 to T-190; M-1 to Y-189; M-1 to P-188; M-1 to R-187; M-1 to G-186; M-1 to G-185; M-1 to R-184; M-1 to N-183; M-1 to E-182; M-1 to A-181; M-1 to D-180; M-1 to L- 179; M-1 to L-178; M-1 to S-177; M-1 to L-176; M-1 to S-175; M-1 to K-174; M-1 to Q- 173; M-1 to M-172; M-1 to K-171; M-1 to T-170; M-1 to D-169; M-1 to D-168; M-1 to L- 167; M-1 to D-166; M-1 to R-165; M-1 to H-164; M-1 to L-163; M-1 to L-162; M-1 to S- 161; M-1 to R-160; M-1 to F-159; M-1 to P-158; M-1 to R-157; M-1 to S-156; M-1 to D- 155; M-1 to Q-154; M-1 to L-153; M-1 to P-152; M-1 to G-151; M-1 to S-150; M-1 to S- 149; M-1 to A-148; M-1 to A-147; M-1 to P-146; M-1 to P-145; M-1 to E-144; M-1 to S- 143; M-1 to L-142; M-1 to P-141; M-1 to V-140; M-1 to A-139; M-1 to D-138; M-1 to 1-137; M-1 to P-136; M-1 to E-135; M-1 to G-134; M-1 to D-133; M-1 to R-132; M-1 to K-131; M- 1 to F-130; M-1 to Y-129; M-1 to V-128; M-1 to M-127; M-1 to P-126; M-1 to A-125; M-1 to P-124; M-1 to K-123; M-1 to G-122; M-1 to G-121; M-1 to S-120; M-1 to V-119; M-1 to 1-118; M-1 to C-117; M-1 to V-116; M-1 to L-115; M-1 to T-114; M-1 to F-113; M-1 to N- 112; M-1 to Q-l l l; M-1 to A-110; M-1 to Q-109; M-1 to Y-108; M-1 to R-107; M-1 to S- 106; M-1 to F-105; M-1 to P-104; M-1 to A-103; M-1 to P-102; M-1 to T-101; M-1 to D- 100; M-1 to A-99; M-1 to A-98; M-1 to V-97; M-1 to V-96; M-1 to E-95; M-1 to 1-94; M-1 to S-93; M-1 to T-92; M-1 to P-91; M-1 to P-90; M-1 to A-89; M-1 to M-88; M-1 to V-87; M-1 to N-86; M-1 to L-85; M-1 to F-84; M-1 to 1-83; M-1 to N-82; M-1 to G-81; M-1 to S- 80; M-1 to A-79; M-1 to L-78; M-1 to V-77; M-1 to V-76; M-1 to K-75; M-1 to E-74; M-1 to R-73; M-1 to T-72; M-1 to A-71; M-1 to R-70; M-1 to D-69; M-1 to Y-68; M-1 to 1-67; M-1 to G-66; M-1 to V-65; M-1 to H-64; M-1 to C-63; M-1 to E-62; M-1 to Y-61; M-1 to P-60; M-1 to G-59; M-1 to N-58; M-1 to D-57; M-1 to S-56; M-1 to 1-55; M-1 to R-54; M-1 to V- 53; M-1 to E-52; M-1 to P-51; M-1 to L-50; M-1 to R-49; M-1 to V-48; M-1 to T-47; M-1 to S-46; M-1 to Q-45; M-1 to Y-44; M-1 to V-43; M-1 to L-42; M-1 to D-41; M-1 to E-40; M-1 to R-39; M-1 to K-38; M-1 to R-37; M-1 to Y-36; M-1 to N-35; M-1 to E-34; M-1 to M-33; M-1 to H-32; M-1 to S-31; M-1 to Y-30; M-1 to N-29; M-1 to T-28; M-1 to S-27; M-1 to F- 26; M-1 to M-25; M-1 to A-24; M-1 to D-23; M-1 to F-22; M-1 to T-21; M-1 to F-20; M-1 to 1-19; M-1 to K-18; M-1 to Q-17; M-1 to K-16; M-1 to 1-15; M-1 to T-14; M-1 to G-13; M-1 to G-12; M-1 to D-l l; M-1 to T-10; M-1 to V-9; M-1 to R-8; and/or M-1 to Y-7 of SEQ DD NO: 18. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [176] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protem results in modification of loss of one or more biological functions ofthe protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to generate antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority ofthe residues ofthe complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [177] In addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of SEQ DD NO: 18, where n and m are integers as described above. Polynucleotides encoding these polypeptides are also encompassed by the invention. The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%), 98% or 99% identical to a polypeptide sequence set forth herein as m-n. In preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Polynucleotides encoding these polypeptides are also encompassed by the invention. [178] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 408 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 408 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [179] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [180] It has been discovered that this gene is expressed in neural tissues. [181] Polynucleotides and polypeptides of the invention are useful as reagents for differential identification of neural system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly involving T cells and/or neutrophils, as well as diseases and/or disorders of the neural system. Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification of the tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity ofthe B7-H10 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activites as are disclosed herein (e.g., T cell modulated activities). [182] For a number of disorders of the above tissues or cells, particularly of the neural and immune systems, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., immune, neural, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [183] The homology to members of the B7 family of ligands, indicates that the polynucleotides and polypeptides corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells and/or neutrophils. In particular, the translation product of the B7-H10 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation of the expression of particular cytokines, for example. [184] More generally, the tissue distribution in immune system cells indicates that this gene product may be involved in the regulation of cytokine production, antigen presentation, or other processes that may also suggest a usefulness in the treatment of cancer (e.g. by boosting immune responses). Since the gene is expressed in cells of immune system origin, the gene or protein, as well as, antibodies directed against the protein may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. Therefore it may be also used as an agent for immunological disorders including arthritis, asthma, immune deficiency diseases such as ADDS, leukemia, rheumatoid arthritis, inflammatory bowel disease, sepsis, acne, and psoriasis. In addition, this gene product may have commercial utility in the expansion of stem cells and committed progenitors of various blood lineages, and in the differentiation and/or proliferation of various cell types. Protein, as well as, antibodies directed against the protein may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. Furthermore, the protein may also be used to determine biological activity, to raise antibodies, as tissue markers, to isolate cognate ligands or receptors, to identify agents that modulate their interactions, in addition to its use as a nutritional supplement. [185] Expression within neural tissue suggests that polynucleotides, translation products and antibodies corresponding to this clone are useful for the detection and/or treatment of neurodegenerative disease states and behavioural disorders such as Alzheimers Disease, Parkinsons Disease, Huntingtons Disease, Tourette Syndrome, schizophrenia, mania, dementia, paranoia, obsessive compulsive disorder, panic disorder, learning disabilities, ALS, psychoses, autism, and altered behaviors, including disorders in feeding, sleep patterns, balance, and perception. In addition, the gene or gene product may also play a role in the treatment and/or detection of developmental disorders associated with the developing embryo, or sexually-linked disorders. Additionally, translation products corresponding to this gene, as well as antibodies directed against these translation products, may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. FEATURES OF PROTEIN ENCODED BY GENE NO: 6 [186] For purposes of this application, this gene and its corresponding translation product are known as the B7-H12 gene and B7-H12 protein. The B7-H12 gene shares sequence homology with members of the B7 family of ligands (i.e., B7-H1 (See Genbank Accession AAF25807)). These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation and death of T cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation of the T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists such as antibodies or small molecules directed against the B7-H12 gene are useful for treating T cell mediated immune system disorders, as well as disorders of other immune system cells, such as for example, neutrophils, macrophage, and leukocytes. [187] Preferred polypeptides of the present invention comprise, or alternatively consist of, one, two, three, four, or all four of the immunogenic epitopes of the extracellular portion of the B7-H12 protein shown in SEQ DD NO: 19 as residues: Pro-54 to Glu-59, Lys-78 to Arg-94, Ala-115 to He- 120, and Gin- 126 to Cys-131. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [188] h additional nonexclusive embodiments, polypeptides of the invention comprise, or alternatively consist of, an amino acid sequence selected from the group consisting of: [189] The mature domain of the B7-H12 protein: QVTVVGPTDPE AMVGENTTLRCCLSPEENAEDMEVRWFQSQFSPAVFVYKGGRER TEEQKEEYRGRTTFVSKDSRGSVALDHNVTAEDNGiYQCYFQEGRSCNEAILHLVVA DQHNPLSWIPEPQGTLSL (SEQ DD NO: 44) and/or [190] The leader sequence of the B7-H12 protein: MEPAAALHFSRPASLLLLLSLCALVSA (SEQ ED NO: 45). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [191] Also preferred are polypeptides comprising, or alternatively consisting of, fragments of the mature portion of the B7-H12 protein demonstrating functional activity (SEQ ED NO: 44). Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [192] By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H12 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H12 polypeptide for binding) to an anti-B7-H12 antibody], immunogenicity (ability to generate antibody which binds to a B7-H12 polypeptide), ability to form multimers with B7-H12 polypeptides ofthe invention, and ability to bind to a receptor for a B7-H12 polypeptide. [193] Figures 11A-B show the nucleotide (SEQ ED NO: 7) and deduced amino acid sequence (SEQ DD NO: 19) corresponding to this gene. [194] Figure 12 shows an analysis of the amino acid sequence (SEQ ED NO: 19). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 12 are also represented in tabular form in Table 8. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XEV. The column headings refer to the following features of the amino acid sequence presented in Figure 12, and Table 8: "Res": amino acid residue of SEQ DD NO: 19 and Figures 11A-B; "Position": position of the corresponding residue within SEQ DD NO: 19 and Figures 11A-B; I: Alpha, Regions - Garnier-Robson; II: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier- Robson; IV: Beta, Regions - Chou-Fasman; V: Turn, Regions - Garnier-Robson; VI: Turn, Regions - Chou-Fasman; VII: Coil, Regions - Garnier-Robson; VDI: Hydrophilicity Plot - Kyte-Doolittle; DC: Hydrophobicity Plot - Hopp-Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; XII: Flexible Regions - Karplus- Schulz; XDI: Antigenic Index - Jameson- Wolf; and XJV: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more ofthe following regions: alpha-helix and alpha-helix forming regions ("alpha-regions"), beta-sheet and beta-sheet forming regions ("beta- regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes ofthe protein set forth in Figure 12 and/or Table 8, as described above, was generated using the various modules and algorithms ofthe DNA*STAR set on default parameters. In a preferred embodiment, the data presented in columns VHI, LX, XDI, and XIN of Table 8 can be used to determine regions of the protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns VDI, IX, XDI, and/or XIV by choosing values which represent regions ofthe polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 12, but may, as shown in Table 8, be represented or identified by using tabular representations of the data presented in Figure 12. The DΝA*STAR computer algorithm used to generate Figure 12 (set on the original default parameters) was used to present the data in Figure 12 in a tabular format (See Table 8). The tabular format ofthe data in Figure 12 (See Figure 8) is used to easily determine specific boundaries of a preferred region. [195] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ ED NO: 7, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt, still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 7. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ ED NO: 7. In this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ ED NO: 7, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. In additional embodiments, the polynucleotides of the invention encode functional attributes of the corresponding protein. [196] Preferred polypeptide fragments ofthe invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the B7-H12 polypeptide can be described by the general formula m-159 where m is an integer from 2 to 154, where m corresponds to the position of the amino acid residue identified in SEQ DD NO: 19. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: E-2 to L-159; P- 3 to L-159; A-4 to L-159; A-5 to L-159; A-6 to L-159; L-7 to L-159; H-8 to L-159; F-9 to L- 159; S-10 to L-159; R-ll to L-159; P-12 to L-159; A-13 to L-159; S-14 to L-159; L-15 to L- 159; L-16 to L-159; L-17 to L-159; L-18 to L-159; L-19 to L-159; S-20 to L-159; L-21 to L- 159; C-22 to L-159; A-23 to L-159; L-24 to L-159; V-25 to L-159; S-26 to L-159; A-27 to L- 159; Q-28 to L-159; V-29 to L-159; T-30 to L-159; V-31 to L-159; V-32 to L-159; G-33 to L-159; P-34 to L-159; T-35 to L-159; D-36 to L-159; P-37 to L-159; 1-38 to L-159; L-39 to L-159; A-40 to L-159; M-41 to L-159; V-42 to L-159; G-43 to L-159; E-44 to L-159; N-45 to L-159; T-46 to L-159; T-47 to L-159; L-48 to L-159; R-49 to L-159; C-50 to L-159; C-51 to L-159; L-52 to L-159; S-53 to L-159; P-54 to L-159; E-55 to L-159; E-56 to L-159; N-57 to L-159; A-58 to L-159; E-59 to L-159; D-60 to L-159; M-61 to L-159; E-62 to L-159; V-63 to L-159; R-64 to L-159; W-65 to L-159; F-66 to L-159; Q-67 to L-159; S-68 to L-159; Q-69 to L-159; F-70 to L-159; S-71 to L-159; P-72 to L-159; A-73 to L-159; V-74 to L-159; F-75 to L-159; V-76 to L-159; Y-77 to L-159; K-78 to L-159; G-79 to L-159; G-80 to L-159; R-81 to L-159; E-82 to L-159; R-83 to L-159; T-84 to L-159; E-85 to L-159; E-86 to L-159; Q-87 to L-159; K-88 to L-159; E-89 to L-159; E-90 to L-159; Y-91 to L-159; R-92 to L-159; G-93 to L-159; R-94 to L-159; T-95 to L-159; T-96 to L-159; F-97 to L-159; V-98 to L-159; S-99 to L-159; K-100 to L-159; D-101 to L-159; S-102 to L-159; R-103 to L-159; G-104 to L-159; S-105 to L-159; V-106 to L-159; A-107 to L-159; L-108 to L-159; 1-109 to L-159; 1-110 to L-159; H-l l l to L-159; N-112 to L-159; V-113 to L-159; T-114 to L-159; A-115 to L-159; E-l 16 to L-159; D-117 to L-159; N-118 to L-159; G-119 to L-159; 1-120 to L-159; Y-121 to L-159; Q-122 to L-159; C-123 to L-159; Y-124 to L-159; F-125 to L-159; Q-126 to L-159; E-127 to L-159; G-128 to L-159; R-129 to L-159; S-130 to L-159; C-131 to L-159; N-132 to L-159; E-133 to L-159; A-134 to L-159; 1-135 to L-159; L-136 to L-159; H-137 to L-159; L- 138 to L-159; V-139 to L-159; V-140 to L-159; A-141 to L-159; D-142 to L-159; Q-143 to L-159; H-144 to L-159; N-145 to L-159; P-146 to L-159; L-147 to L-159; S-148 to L-159; W-149 to L-159; 1-150 to L-159; P-151 to L-159; 1-152 to L-159; P-153 to L-159; and/or Q- 154 to L-159 of SEQ DD NO: 19. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [197] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 11A-B (SEQ ED NO: 19), as described by the general formula 1-n, where n is an integer from 7 to 158, where n corresponds to the position of the amino acid residue identified in SEQ DD NO: 19. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group of C-terminal deletions: M-1 to S-158; M-1 to L-157; M-1 to T-156; M-1 to G-155; M-1 to Q-154; M-1 to P-153; M-1 to 1-152; M-1 to P-151; M-1 to 1-150; M-1 to W-149; M-1 to S-148; M-1 to L-147; M-1 to P-146; M-1 to N- 145; M-1 to H-144; M-1 to Q-143; M-1 to D-142; M-1 to A-141; M-1 to V-140; M-1 to V- 139; M-1 to L-138; M-1 to H-137; M-1 to L-136; M-1 to 1-135; M-1 to A-134; M-1 to E-133; M-1 to N-132; M-1 to C-131; M-1 to S-130; M-1 to R-129; M-1 to G-128; M-1 to E-127; M- 1 to Q-126; M-1 to F-125; M-1 to Y-124; M-1 to C-123; M-1 to Q-122; M-1 to Y-121; M-1 to 1-120; M-1 to G-119; M-1 to N-118; M-1 to D-117; M-1 to E-l 16; M-1 to A-115; M-1 to T-114; M-1 to V-113; M-1 to N-112; M-1 to H-lll; M-1 to 1-110; M-1 to 1-109; M-1 to L- 108; M-1 to A-107; M-1 to V-106; M-1 to S-105; M-1 to G-104; M-1 to R-103; M-1 to S- 102; M-1 to D-101; M-1 to K-100; M-1 to S-99; M-1 to V-98; M-1 to F-97; M-1 to T-96; M- 1 to T-95; M-1 to R-94; M-1 to G-93; M-1 to R-92; M-1 to Y-91; M-1 to E-90; M-1 to E-89; M-1 to K-88; M-1 to Q-87; M-1 to E-86; M-1 to E-85; M-1 to T-84; M-1 to R-83; M-1 to E- 82; M-1 to R-81; M-1 to G-80; M-1 to G-79; M-1 to K-78; M-1 to Y-77; M-1 to V-76; M-1 to F-75; M-1 to V-74; M-1 to A-73; M-1 to P-72; M-1 to S-71; M-1 to F-70; M-1 to Q-69; M-1 to S-68; M-1 to Q-67; M-1 to F-66; M-1 to W-65; M-1 to R-64; M-1 to V-63; M-1 to E- 62; M-1 to M-61; M-1 to D-60; M-1 to E-59; M-1 to A-58; M-1 to N-57; M-1 to E-56; M-1 to E-55; M-1 to P-54; M-1 to S-53; M-1 to L-52; M-1 to C-51; M-1 to C-50; M-1 to R-49; M- 1 to L-48; M-1 to T-47; M-1 to T-46; M-1 to N-45; M-1 to E-44; M-1 to G-43; M-1 to V-42; M-1 to M-41; M-1 to A-40; M-1 to L-39; M-1 to 1-38; M-1 to P-37; M-1 to D-36; M-1 to T- 35; M-1 to P-34; M-1 to G-33; M-1 to V-32; M-1 to V-31; M-1 to T-30; M-1 to V-29; M-1 to Q-28; M-1 to A-27; M-1 to S-26; M-1 to V-25; M-1 to L-24; M-1 to A-23; M-1 to C-22; M-1 to L-21; M-1 to S-20; M-1 to L-19; M-1 to L-18; M-1 to L-17; M-1 to L-16; M-1 to L-15; M- 1 to S-14; M-1 to A-13; M-1 to P-12; M-1 to R-l l; M-1 to S-10; M-1 to F-9; M-1 to H-8; and/or M-1 to L-7 of SEQ DD NO: 19. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%o, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [198] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protein results in modification of loss of one or more biological functions ofthe protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to generate antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority ofthe residues of the complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [199] In addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of SEQ DD NO: 19, where n and m are integers as described above. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [200] The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% identical to a polypeptide sequence set forth herein as m-n. In preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [201] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 153 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 153 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [202] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [203] It has been discovered that this gene is expressed in dendritic cells, T cells, and Hodgkin's lymphoma. [204] Polynucleotides, translation products and antibodies corresponding to this gene are useful as reagents for differential identification of immune system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and or surveillance, particularly involving T cells, in addition to other immune system cells such as dendritic cells, neutrophils, and leukocytes. Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification of the tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity of the B7-H12 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activites as are disclosed herein (e.g. T cell modulated activities). [205] For a number of disorders of the above tissues or cells, particularly ofthe immune system, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., immune, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [206] The tissue distribution in immune cells (e.g., T-cells, dendritic cells), and the homology to members of the B7 family of ligands, indicates that the polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells, neutrophils, dendritic cells, leukocytes, and other immune system cells. In particular, the translation product of the B7- H12 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation ofthe expression of particular cytokines, for example. [207] More generally, the tissue distribution in immune system cells indicates that this gene product may be involved in the regulation of cytokine production, antigen presentation, or other processes that may also suggest a usefulness in the treatment of cancer (e.g., by boosting immune responses). Since the gene is expressed in cells of immune system origin, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. [208] Polynucleotides, translation products and antibodies corresponding to this gene may be also used as an agent for immunological disorders including arthritis, asthma, immune deficiency diseases such as ADDS, leukemia, rheumatoid arthritis, inflammatory bowel disease, sepsis, acne, and psoriasis. In addition, this gene product may have commercial utility in the expansion of stem cells and committed progenitors of various blood lineages, and in the differentiation and/or proliferation of various cell types. Furthermore, the protein may also be used to determine biological activity, to raise antibodies, as tissue markers, to isolate cognate ligands or receptors, to identify agents that modulate their interactions, in addition to its use as a nutritional supplement. FEATURES OF PROTEIN ENCODED BY GENE NO: 7 [209] For purposes of this application, this gene and its corresponding translation product are known as the B7-H13 gene and B7-H13 protein. This protein is believed to reside as a cell-surface molecule, and the transmembrane domain of this protein is believed to approximately embody the following preferred amino acid residues: LGE CCGLFFGIV (SEQ DD NO: 46). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. As one skilled in the art would understand, the transmembrane domain was predicted using computer analysis, and the transmembrane domain may vary by one, two, three, four, five, six, seven, eight, nine, and/or ten amino acids from the N and C-termini ofthe predicted transmembrane domain. [210] The B7-H13 gene shares sequence homology with members of the B7 family of ligands (i.e., B7-H1 (See Genbank Accession AAF25807)). These proteins and their corresponding receptors play vital roles in the growth, differentiation, activation, proliferation and death of T cells. For example, some members of this family (i.e., B7-H1) are involved in costimulation o the T cell response, as well as inducing increased cytokine production, while other family members are involved in the negative regulation of the T cell response. Therefore, agonists and antagonists such as antibodies or small molecules directed against the B7-H13 gene are useful for treating T cell mediated immune system disorders, as well as disorders of other immune system cells, such as for example, neutrophils, macrophage, and leukocytes. [211] Preferred polypeptides of the present invention comprise, or alternatively consist of, one, two, three, four, five, six, seven, or all seven of the immunogenic epitopes of the extracellular portion of the B7-H13 protein shown in SEQ ED NO: 20 as residues: Tyr-67 to Pro-74, Ser-117 to Gln-123, Pro-161 to Met-185, His-311 to Arg-327, Val-345 to Trp-353, Arg-359 to Glu-367, and Pro-447 to Gln-461. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [212] In additional nonexclusive embodiments, polypeptides of the invention comprise, or alternatively consist of, an amino acid sequence selected from the group consisting of: [213] The extracellular domain of the B7-H13 protein: MALMLSLVLSLLKLGSGQWQVFGPDKPVQALVGEDAAFSCFLSPKTNAEAMEVRFF RGQFSSVVHLYRDGKDQPFMQMPQYQGRTKLVKDSIAEGRISLRLENITVLDAGLYG CWSSQSYYQKAiWELQVSALGSVPLISITGYVDRDIQLLCQSSGWFPRPTAKWKGPQ GQDLSTDSRTNRDMHGLFDVEISLTVQENAGSISCSMRHAHLSREVESRVQIGDTFFE PISWHLATKV (SEQ DD NO: 48), [214] The mature extracellular domain of the B7-H13 protein: QWQVFGPDKPVQALVGEDAAFSCFLSPKTNAEAMEVRFFRGQFSSWHLYRDGKD QPFMQMPQYQGRTKLVKDSIAEGRISLRLENITVLDAGLYGCRISSQSYYQKAiWEL QVSALGSVPLISITGYVDRDIQLLCQSSGWFPRPTAKWKGPQGQDLSTDSRTNRDMH GLFDVEISLTVQENAGSISCSMRHAHLSREVESRVQIGDTFFEPISWHLATKV (SEQ ED NO: 49), and/or [215] The leader sequence of the B7-H13 protein: MALMLSLVLSLLKLGSG (SEQ ED NO: 47). Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [216] Also preferred are polypeptides comprising, or alternatively consisting of, fragments ofthe mature extracellular portion ofthe B7-H13 protein demonstrating functional activity (SEQ DD NO: 49). Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [217] By functional activity is meant, a polypeptide fragment capable of displaying one or more known functional activities associated with the full-length (complete) B7-H13 protein. Such functional activities include, but are not limited to, biological activity (e.g., T cell costimulatory activity, ability to bind ICOS, CD28 or CTLA4, and ability to induce or inhibit cytokine production), antigenicity [ability to bind (or compete with a B7-H13 polypeptide for binding) to an anti-B7-H13 antibody], immunogenicity (ability to generate antibody which binds to a B7-H13 polypeptide), ability to form multimers with B7-H13 polypeptides ofthe invention, and ability to bind to a receptor for a B7-H13 polypeptide. [218] Figures 13A-C show the nucleotide (SEQ DD NO: 8) and deduced amino acid sequence (SEQ DD NO: 20) corresponding to this gene. [219] Figure 14 shows an analysis ofthe amino acid sequence (SEQ DD NO: 20). Alpha, beta, turn and coil regions; hydrophilicity and hydrophobicity; amphipathic regions; flexible regions; antigenic index and surface probability are shown, and all were generated using the default settings of the recited computer algorithyms. In the "Antigenic Index or Jameson- Wolf graph, the positive peaks indicate locations of the highly antigenic regions of the protein, i.e., regions from which epitope-bearing peptides of the invention can be obtained. Polypeptides comprising, or alternatively consisting of, domains defined by these graphs are contemplated by the present invention, as are polynucleotides encoding these polypeptides. The data presented in Figure 14 are also represented in tabular form in Table 9. The columns are labeled with the headings "Res", "Position", and Roman Numerals I-XLV. The column headings refer to the following features of the amino acid sequence presented in Figure 14, and Table 9: "Res": amino acid residue of SEQ DD NO: 20 and Figures 13A-C; "Position": position of the corresponding residue within SEQ DD NO: 20 and Figures 13A-C; I: Alpha, Regions - Garnier-Robson; D: Alpha, Regions - Chou-Fasman; DI: Beta, Regions - Garnier- Robson; IV: Beta, Regions - Chou-Fasman; V: Turn, Regions - Garnier-Robson; VI: Turn, Regions - Chou-Fasman; VII: Coil, Regions - Garnier-Robson; VIE: Hydrophilicity Plot - Kyte-Doolittle; IX: Hydrophobicity Plot - Hopp-Woods; X: Alpha, Amphipathic Regions - Eisenberg; XI: Beta, Amphipathic Regions - Eisenberg; XU: Flexible Regions - Karplus- Schulz; XDI: Antigenic Index - Jameson- Wolf; and XIV: Surface Probability Plot - Emini. Preferred embodiments of the invention in this regard include fragments that comprise, or alternatively consisting of, one or more of the following regions: alpha-helix and alpha-helix forming regions ("alpha-regions"), beta-sheet and beta-sheet forming regions ("beta- regions"), turn and turn-forming regions ("turn-regions"), coil and coil-forming regions ("coil-regions"), hydrophilic regions, hydrophobic regions, alpha amphipathic regions, beta amphipathic regions, flexible regions, surface-forming regions and high antigenic index regions. The data representing the structural or functional attributes ofthe protein set forth in Figure 14 and/or Table 9, as described above, was generated using the various modules and algorithms ofthe DNA*STAR set on default parameters. In a preferred embodiment, the data presented in columns VDI, IX, XDI, and XTV of Table 9 can be used to determine regions of the protein which exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from the data presented in columns VDI, IX, XXfl, and/or XTV by choosing values which represent regions ofthe polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. Certain preferred regions in these regards are set out in Figure 14, but may, as shown in Table 9, be represented or identified by using tabular representations of the data presented in Figure 14. The DNA* STAR computer algorithm used. to generate Figure 14 (set on the original default parameters) was used to present the data in Figure 14 in a tabular format (See Table 9). The tabular format ofthe data in Figure 14 (See Table 9) is used to easily determine specific boundaries of a preferred region. [220] The present invention is further directed to fragments of the polynucleotide sequences described herein. By a fragment of, for example, the polynucleotide sequence of a deposited cDNA or the nucleotide sequence shown in SEQ ED NO: 8, is intended polynucleotide fragments at least about 15nt, and more preferably at least about 20 nt, at least about 25nt,. still more preferably at least about 30 nt, at least about 35nt, and even more preferably, at least about 40 nt in length, at least about 45nt in length, at least about 50nt in length, at least about 60nt in length, at least about 70nt in length, at least about 80nt in length, at least about 90nt in length, at least about lOOnt in length, at least about 125nt in length, at least about 150nt in length, at least about 175nt in length, which are useful as diagnostic probes and primers as discussed herein. Of course, larger fragments 200-1500 nt in length are also useful according to the present invention, as are fragments corresponding to most, if not all, of the nucleotide sequence of a deposited cDNA or as shown in SEQ DD NO: 8. By a fragment at least 20 nt in length, for example, is intended fragments which include 20 or more contiguous bases from the nucleotide sequence of a deposited cDNA or the nucleotide sequence as shown in SEQ DD NO: 8. In this context "about" includes the particularly recited size, an sizes larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Representative examples of polynucleotide fragments of the invention include, for example, fragments that comprise, or alternatively, consist of, a sequence from about nucleotide 1 to about 50, from about 51 to about 100, from about 101 to about 150, from about 151 to about 200, from about 201 to about 250, from about 251 to about 300, from about 301 to about 350, from about 351 to about 400, from about 401 to about 450, from about 451 to about 500, and from about 501 to about 550, and from about 551 to about 600, from about 601 to about 650, from about 651 to about 700, from about 701 to about 750, from about 751 to about 800, and from about 801 to about 860, of SEQ DD NO: 8, or the complementary strand thereto, or the cDNA contained in a deposited clone. In this context "about" includes the particularly recited ranges, and ranges larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. [221] In additional embodiments, the polynucleotides of the invention encode functional attributes of the corresponding protein. Preferred polypeptide fragments of the invention comprise, or alternatively consist of, the secreted protein having a continuous series of deleted residues from the amino or the carboxy terminus, or both. Particularly, N-terminal deletions of the polypeptide can be described by the general formula m-461 where m is an integer from 2 to 456, where m corresponds to the position of the amino acid residue identified in SEQ DD NO: 20. More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group: A-2 to Q-461; L-3 to Q-461; M-4 to Q-461; L-5 to Q-461; S-6 to Q- 461; L-7 to Q-461; V-8 to Q-461; L-9 to Q-461; S-10 to Q-461; L-ll to Q-461; L-12 to Q- 461; K-13 to Q-461; L-14 to Q-461; G-15 to Q-461; S-16 to Q-461; G-17 to Q-461; Q-18 to Q-461; W-19 to Q-461; Q-20 to Q-461; V-21 to Q-461; F-22 to Q-461; G-23 to Q-461; P-24 to Q-461; D-25 to Q-461; K-26 to Q-461; P-27 to Q-461; N-28 to Q-461; Q-29 to Q-461; A- 30 to Q-461; L-31 to Q-461; N-32 to Q-461; G-33 to Q-461; E-34 to Q-461; D-35 to Q-461; A-36 to Q-461; A-37 to Q-461; F-38 to Q-461; S-39 to Q-461; C-40 to Q-461; F-41 to Q- 461; L-42 to Q-461; S-43 to Q-461; P-44 to Q-461; K-45 to Q-461; T-46 to Q-461; Ν-47 to Q-461; A-48 to Q-461; E-49 to Q-461; A-50 to Q-461; M-51 to Q-461; E-52 to Q-461; V-53 to Q-461; R-54 to Q-461; F-55 to Q-461; F-56 to Q-461; R-57 to Q-461; G-58 to Q-461; Q- 59 to Q-461; F-60 to Q-461; S-61 to Q-461; S-62 to Q-461; V-63 to Q-461; V-64 to Q-461; H-65 to Q-461; L-66 to Q-461; Y-67 to Q-461; R-68 to Q-461; D-69 to Q-461; G-70 to Q- 461; K-71 to Q-461; D-72 to Q-461; Q-73 to Q-461; P-74 to Q-461; F-75 to Q-461; M-76 to Q-461; Q-77 to Q-461; M-78 to Q-461; P-79 to Q-461; Q-80 to Q-461; Y-81 to Q-461; Q-82 to Q-461; G-83 to Q-461; R-84 to Q-461; T-85 to Q-461; K-86 to Q-461; L-87 to Q-461; V- 88 to Q-461; K-89 to Q-461; D-90 to Q-461; S-91 to Q-461; 1-92 to Q-461; A-93 to Q-461; E-94 to Q-461; G-95 to Q-461; R-96 to Q-461; 1-97 to Q-461; S-98 to Q-461; L-99 to Q-461; R-100 to Q.461; L-101 to Q-461; E-102 to Q-461; N-103 to Q-461; 1-104 to Q-461; T-105 to Q-461; V-106 to Q-461; L-107 to Q-461; D-108 to Q-461; A-109 to Q-461; G-110 to Q-461; L-lll to Q-461; Y-112 to Q-461; G-113 to Q-461; C-114 to Q-461; R-115 to Q-461; 1-116 to Q-461; S-117 to Q-461; S-118 to Q-461; Q-119 to Q-461; S-120 to Q-461; Y-121 to Q-461; Y-122 to Q-461; Q-123 to Q-461; K-124 to Q-461; A-125 to Q-461; 1-126 to Q-461; W-127 to Q-461; E-128 to Q-461; L-129 to Q-461; Q-130 to Q-461; V-131 to Q-461; S-132 to Q- 461; A-133 to Q-461; L-134 to Q-461; G-135 to Q-461; S-136 to Q-461; V-137 to Q-461; P- 138 to Q-461; L-139 to Q-461; 1-140 to Q-461; S-141 to Q-461; 1-142 to Q-461; T-143 to Q- 461; G-144 to Q-461; Y-145 to Q-461; V-146 to Q-461; D-147 to Q-461; R-148 to Q-461; D- 149 to Q-461; 1-150 to Q-461; Q-151 to Q-461; L-152 to Q-461; L-153 to Q-461; C-154 to Q-461; Q-155 to Q-461; S-156 to Q-461; S-157 to Q-461; G-158 to Q-461; W-159 to Q-461; F-160 to Q-461; P-161 to Q-461; R-162 to Q-461; P-163 to Q-461; T-164 to Q-461; A-165 to Q-461; K-166 to Q-461; W-167 to Q-461; K-168 to Q-461; G-169 to Q-461; P-170 to Q-461; Q-171 to Q-461; G-172 to Q-461; Q-173 to Q-461; D-174 to Q-461; L-175 to Q-461; S-176 to Q-461; T-177 to Q-461; D-178 to Q-461; S-179 to Q-461; R-180 to Q-461; T-181 to Q- 461; N-182 to Q-461; R-183 to Q-461; D-184 to Q-461; M-185 to Q-461; H-186 to Q-461; G-187 to Q-461; L-188 to Q-461; F-189 to Q-461; D-190 to Q-461; V-191 to Q-461; E-192 to Q-461; 1-193 to Q-461; S-194 to Q-461; L-195 to Q-461; T-196 to Q-461; V-197 to Q- 461; Q-198 to Q-461; E-199 to Q-461; N-200 to Q-461; A-201 to Q-461; G-202 to Q-461; S- 203 to Q-461; 1-204 to Q-461; S-205 to Q-461; C-206 to Q-461; S-207 to Q-461; M-208 to Q-461; R-209 to Q-461; H-210 to Q-461; A-211 to Q-461; H-212 to Q-461; L-213 to Q-461; S-214 to Q-461; R-215 to Q-461; E-216 to Q-461; V-217 to Q-461; E-218 to Q-461; S-219 to Q-461; R-220 to Q-461; V-221 to Q-461; Q-222 to Q-461; 1-223 to Q-461; G-224 to Q-461; D-225 to Q-461; T-226 to Q-461; F-227 to Q-461; F-228 to Q-461; E-229 to Q-461; P-230 to Q-461; 1-231 to Q-461; S-232 to Q-461; W-233 to Q-461; H-234 to Q-461; L-235 to Q-461; A-236 to Q-461; T-237 to Q-461; K-238 to Q-461; V-239 to Q-461; L-240 to Q-461; G-241 to Q-461; 1-242 to Q-461; L-243 to Q-461; C-244 to Q-461; C-245 to Q-461; G-246 to Q- 461; L-247 to Q-461; F-248 to Q-461; F-249 to Q-461; G-250 to Q-461; 1-251 to Q-461; V- 252 to Q-461; G-253 to Q-461; L-254 to Q-461; K-255 to Q-461; 1-256 to Q-461; F-257 to Q-461; F-258 to Q-461; S-259 to Q-461; K-260 to Q-461; F-261 to Q-461; Q-262 to Q-461; W-263 to Q-461; K-264 to Q-461; 1-265 to Q-461; Q-266 to Q-461; A-267 to Q-461; E-268 to Q-461; L-269 to Q-461; D-270 to Q-461; W-271 to Q-461; R-272 to Q-461; R-273 to Q- 461; K-274 to Q-461; H-275 to Q-461; G-276 to Q-461; Q-277 to Q-461; A-278 to Q-461; E- 279 to Q-461; L-280 to Q-461; R-281 to Q-461; D-282 to Q-461; A-283 to Q-461; R-284 to Q-461; K-285 to Q-461; H-286 to Q-461; A-287 to Q-461; V-288 to Q-461; E-289 to Q-461; V-290 to Q-461; T-291 to Q-461; L-292 to Q-461; D-293 to Q-461; P-294 to Q-461; E-295 to Q-461; T-296 to Q-461; A-297 to Q-461; H-298 to Q-461; P-299 to Q-461; K-300 to Q- 461; L-301 to Q-461; C-302 to Q-461; V-303 to Q-461; S-304 to Q-461; D-305 to Q-461; L- 306 to Q-461; K-307 to Q-461; T-308 to Q-461; V-309 to Q-461; T-310 to Q-461; H-311 to Q-461; R-312 to Q-461; K-313 to Q-461; A-314 to Q-461; P-315 to Q-461; Q-316 to Q-461; E-317 to Q-461; V-318 to Q-461; P-319 to Q-461; H-320 to Q-461; S-321 to Q-461; E-322 to Q-461; K-323 to Q-461; R-324 to Q-461; F-325 to Q-461; T-326 to Q-461; R-327 to Q-461; K-328 to Q-461; S-329 to Q-461; V-330 to Q-461; V-331 to Q-461; A-332 to Q-461; S-333 to Q-461; Q-334 to Q-461; S-335 to Q-461; F-336 to Q-461; Q-337 to Q-461; A-338 to Q- 461; G-339 to Q-461; K-340 to Q-461; H-341 to Q-461; Y-342 to Q-461; W-343 to Q-461; E-344 to Q-461; V-345 to Q-461; D-346 to Q-461; G-347 to Q-461; G-348 to Q-461; H-349 to Q-461; N-350 to Q-461; K-351 to Q-461; R-352 to Q-461; W-353 to Q-461; R-354 to Q- 461; V-355 to Q-461; G-356 to Q-461; V-357 to Q-461; C-358 to Q-461; R-359 to Q-461; D- 360 to Q-461; D-361 to Q-461; V-362 to Q-461; D-363 to Q-461; R-364 to Q-461; R-365 to Q-461; K-366 to Q-461; E-367 to Q-461; Y-368 to Q-461; V-369 to Q-461; T-370 to Q-461; L-371 to Q-461; S-372 to Q-461; P-373 to Q-461; D-374 to Q-461; H-375 to Q-461; G-376 to Q-461; Y-.377 to Q-461; W-378 to Q-461; V-379 to Q-461; L-380 to Q-461; R-381 to Q- 461; L-382 to Q-461; N-383 to Q-461; G-384 to Q-461; E-385 to Q-461; H-386 to Q-461; L- 387 to Q-461; Y-388 to Q-461; F-389 to Q-461; T-390 to Q-461; L-391 to Q-461; N-392 to Q-461; P-393 to Q-461; R-394 to Q-461; F-395 to Q-461; 1-396 to Q-461; S-397 to Q-461; V-398 to Q-461; F-399 to Q-461; P-400 to Q-461; R-401 to Q-461; T-402 to Q-461; P-403 to Q-461; P-404 to Q-461; T-405 to Q-461; K-406 to Q-461; 1-407 to Q-461; G-408 to Q-461; V-409 to Q-461; F-410 to Q-461; L-411 to Q-461; D-412 to Q-461; Y-413 to Q-461; E-414 to Q-461; C-415 to Q-461; G-416 to Q-461; T-417 to Q-461; 1-418 to Q-461; S-419 to Q- 461; F-420 to Q-461; F-421 to Q-461; N-422 to Q-461; 1-423 to Q-461; N-424 to Q-461; D- 425 to Q-461; Q-426 to Q-461; S-427 to Q-461; L-428 to Q-461; 1-429 to Q-461; Y-430 to Q-461; T-431 to Q-461; L-432 to Q-461; T-433 to Q-461; C-434 to Q-461; R-435 to Q-461; F-436 to Q-461; E-437 to Q-461; G-438 to Q-461; L-439 to Q-461; L-440 to Q-461; R-441 to Q-461; P-442 to Q-461; Y-443 to Q-461; 1-444 to Q-461; E-445 to Q-461; Y-446 to Q-461; P-447 to Q-461; S-448 to Q-461; Y-449 to Q-461; N-450 to Q-461; E-451 to Q-461; Q-452 to Q-461; N-453 to Q-461; G-454 to Q-461; T-455 to Q-461; and/or P-456 to Q-461 of SEQ DD NO: 20. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 91%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [222] Accordingly, the present invention further provides polypeptides having one or more residues deleted from the carboxy terminus of the amino acid sequence of the polypeptide shown in Figures 13A-C (SEQ DD NO: 20), as described by the general formula 1-n, where n is an integer from 7 to 460, where n corresponds to the position of the amino acid residue identified in SEQ DD NO: 20. Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the following group of C-terminal deletions: M-1 to Q-460; M-1 to K-459; M-1 to D-458; M-1 to R-457; M-1 to P-456; M-1 to T-455; M-1 to G-454; M-1 to N-453; M-1 to Q-452; M-1 to E-451; M-1 to N-450; M-1 to Y-449; M-1 to S-448; M-1 to P- 447; M-1 to Y-446; M-1 to E-445; M-1 to 1-444; M-1 to Y-443; M-1 to P-442; M-1 to R-441; M-1 to L-440; M-1 to L-439; M-1 to G-438; M-1 to E-437; M-1 to F-436; M-1 to R-435; M- 1 to C-434; M-1 to T-433; M-1 to L-432; M-1 to T-431; M-1 to Y-430; M-1 to 1-429; M-1 to L-428; M-1 to S-427; M-1 to Q-426; M-1 to D-425; M-1 to N-424; M-1 to 1-423; M-1 to N- 422; M-1 to F-421; M-1 to F-420; M-1 to S-419; M-1 to 1-418; M-1 to T-417; M-1 to G-416; M-1 to C-415; M-1 to E-414; M-1 to Y-413; M-1 to D-412; M-1 to L-411; M-1 to F-410; M- 1 to V-409; M-1 to G-408; M-1 to 1-407; M-1 to K-406; M-1 to T-405; M-1 to P-404; M-1 to P-403; M-1 to T-402; M-1 to R-401; M-1 to P-400; M-1 to F-399; M-1 to V-398; M-1 to S- 397; M-1 to 1-396; M-1 to F-395; M-1 to R-394; M-1 to P-393; M-1 to N-392; M-1 to L-391; M-1 to T-390; M-1 to F-389; M-1 to Y-388; M-1 to L-387; M-1 to H-386; M-1 to E-385; M- 1 to G-384; M-1 to N-383; M-1 to L-382; M-1 to R-381; M-1 to L-380; M-1 to V-379; M-1 to W-378; M-1 to Y-377; M-1 to G-376; M-1 to H-375; M-1 to D-374; M-1 to P-373; M-1 to S-372; M-1 to L-371; M-1 to T-370; M-1 to V-369; M-1 to Y-368; M-1 to E-367; M-1 to K- 366; M-1 to R-365; M-1 to R-364; M-1 to D-363; M-1 to V-362; M-1 to D-361; M-1 to D- 360; M-1 to R-359; M-1 to C-358; M-1 to V-357; M-1 to G-356; M-1 to V-355; M-1 to R- 354; M-1 to W-353; M-1 to R-352; M-1 to K-351; M-1 to N-350; M-1 to H-349; M-1 to G- 348; M-1 to G-347; M-1 to D-346; M-1 to V-345; M-1 to E-344; M-1 to W-343; M-1 to Y- 342; M-1 to H-341; M-1 to K-340; M-1 to G-339; M-1 to A-338; M-1 to Q-337; M-1 to F- 336; M-1 to S-335; M-1 to Q-334; M-1 to S-333; M-1 to A-332; M-1 to V-331; M-1 to V- 330; M-1 to S-329; M-1 to K-328; M-1 to R-327; M-1 to T-326; M-1 to F-325; M-1 to R- 324; M-1 to K-323; M-1 to E-322; M-1 to S-321; M-1 to H-320; M-1 to P-319; M-1 to V- 318; M-1 to E-317; M-1 to Q-316; M-1 to P-315; M-1 to A-314; M-1 to K-313; M-1 to R- 312; M-1 to H-311; M-1 to T-310; M-1 to V-309; M-1 to T-308; M-1 to K-307; M-1 to L- 306; M-1 to D-305; M-1 to S-304; M-1 to V-303; M-1 to C-302; M-1 to L-301; M-1 to K- 300; M-1 to P-299; M-1 to H-298; M-1 to A-297; M-1 to T-296; M-1 to E-295; M-1 to P- 294; M-1 to D-293; M-1 to L-292; M-1 to T-291; M-1 to V-290; M-1 to E-289; M-1 to V- 288; M-1 to A-287; M-1 to H-286; M-1 to K-285; M-1 to R-284; M-1 to A-283; M-1 to D- 282; M-1 to R-281; M-1 to L-280; M-1 to E-279; M-1 to A-278; M-1 to Q-277; M-1 to G- 276; M-1 to H-275; M-1 to K-274; M-1 to R-273; M-1 to R-272; M-1 to W-271; M-1 to D- 270; M-1 to L-269; M-1 to E-268; M-1 to A-267; M-1 to Q-266; M-1 to 1-265; M-1 to K- 264; M-1 to W-263; M-1 to Q-262; M-1 to F-261; M-1 to K-260; M-1 to S-259; M-1 to F- 258; M-1 to F-257; M-1 to 1-256; M-1 to K-255; M-1 to L-254; M-1 to G-253; M-1 to V-252; M-1 to 1-251; M-1 to G-250; M-1 to F-249; M-1 to F-248; M-1 to L-247; M-1 to G-246; M-1 to C-245; M-1 to C-244; M-1 to L-243; M-1 to 1-242; M-1 to G-241; M-1 to L-240; M-1 to V-239; M-1 to K-238; M-1 to T-237; M-1 to A-236; M-1 to L-235; M-1 to H-234; M-1 to W- 233; M-1 to S-232; M-1 to 1-231; M-1 to P-230; M-1 to E-229; M-1 to F-228; M-1 to F-227; M-1 to T-226; M-1 to D-225; M-1 to G-224; M-1 to 1-223; M-1 to Q-222; M-1 to V-221; M- 1 to R-220; M-1 to S-219; M-1 to E-218; M-1 to V-217; M-1 to E-216; M-1 to R-215; M-1 to S-214; M-1 to L-213; M-1 to H-212; M-1 to A-211; M-1 to H-210; M-1 to R-209; M-1 to M- 208; M-1 to S-207; M-1 to C-206; M-1 to S-205; M-1 to 1-204; M-1 to S-203; M-1 to G-202; M-1 to A-201; M-1 to N-200; M-1 to E-199; M-1 to Q-198; M-1 to V-197; M-1 to T-196; M- 1 to L-195; M-1 to S-194; M-1 to 1-193; M-1 to E-192; M-1 to V-191; M-1 to D-190; M-1 to F-189; M-1 to L-188; M-1 to G-187; M-1 to H-186; M-1 to M-185; M-1 to D-184; M-1 to R- 183; M-1 to N-182; M-1 to T-181; M-1 to R-180; M-1 to S-179; M-1 to D-178; M-1 to T- 177; M-1 to S-176; M-1 to L-175; M-1 to D-174; M-1 to Q-173; M-1 to G-172; M-1 to Q- 171; M-1 to P-170; M-1 to G-169; M-1 to K-168; M-1 to W-167; M-1 to K-166; M-1 to A- 165; M-1 to T-164; M-1 to P-163; M-1 to R-162; M-1 to P-161; M-1 to F-160; M-1 to W- 159; M-1 to G-158; M-1 to S-157; M-1 to S-156; M-1 to Q-155; M-1 to C-154; M-1 to L- 153; M-1 to L-152; M-1 to Q-151; M-1 to 1-150; M-1 to D-149; M-1 to R-148; M-1 to D- 147; M-1 to V-146; M-1 to Y-145; M-1 to G-144; M-1 to T-143; M-1 to 1-142; M-1 to S-141; M-1 to 1-140; M-1 to L-139; M-1 to P-138; M-1 to V-137; M-1 to S-136; M-1 to G-135; M-1 to L-134; M-1 to A-133; M-1 to S-132; M-1 to V-131; M-1 to Q-130; M-1 to L-129; M-1 to E-128; M-1 to W-127; M-1 to 1-126; M-1 to A-125; M-1 to K-124; M-1 to Q-123; M-1 to Y- 122; M-1 to Y-121; M-1 to S-120; M-1 to Q-119; M-1 to S-118; M-1 to S-117; M-1 to 1-116; M-1 to R-115; M-1 to C-114; M-1 to G-113; M-1 to Y-112; M-1 to L-ll l; M-1 to G-110; M- 1 to A-109; M-1 to D-108; M-1 to L-107; M-1 to V-106; M-1 to T-105; M-1 to 1-104; M-1 to N-103; M-1 to E-102; M-1 to L-101; M-1 to R-100; M-1 to L-99; M-1 to S-98; M-1 to 1-97; M-1 to R-96; M-1 to G-95; M-1 to E-94; M-1 to A-93; M-1 to 1-92; M-1 to S-91; M-1 to D- 90; M-1 to K-89; M-1 to V-88; M-1 to L-87; M-1 to K-86; M-1 to T-85; M-1 to R-84; M-1 to G-83; M-1 to Q-82; M-1 to Y-81; M-1 to Q-80; M-1 to P-79; M-1 to M-78; M-1 to Q-77; M- 1 to M-76; M-1 to F-75; M-1 to P-74; M-1 to Q-73; M-1 to D-72; M-1 to K-71; M-1 to G-70; M-1 to D-69; M-1 to R-68; M-1 to Y-67; M-1 to L-66; M-1 to H-65; M-1 to V-64; M-1 to V- 63; M-1 to S-62; M-1 to S-61; M-1 to F-60; M-1 to Q-59; M-1 to G-58; M-1 to R-57; M-1 to F-56; M-1 to F-55; M-1 to R-54; M-1 to V-53; M-1 to E-52; M-1 to M-51; M-1 to A-50; M-1 to E-49; M-1 to A-48; M-1 to N-47; M-1 to T-46; M-1 to K-45; M-1 to P-44; M-1 to S-43; M-1 to L-42; M-1 to F-41; M-1 to C-40; M-1 to S-39; M-1 to F-38; M-1 to A-37; M-1 to A- 36; M-1 to D-35; M-1 to E-34; M-1 to G-33; M-1 to V-32; M-1 to L-31; M-1 to A-30; M-1 to Q-29; M-1 to V-28; M-1 to P-27; M-1 to K-26; M-1 to D-25; M-1 to P-24; M-1 to G-23; M-1 to F-22; M-1 to V-21; M-1 to Q-20; M-1 to W-19; M-1 to Q-18; M-1 to G-17; M-1 to S-16; M-1 to G-15; M-1 to L-14; M-1 to K-13; M-1 to L-12; M-1 to L-l l; M-1 to S-10; M-1 to L- 9; M-1 to V-8 and/or M-1 to L-7 of SEQ DD NO: 20. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [223] Also as mentioned above, even if deletion of one or more amino acids from the C- terminus of a protein results in modification of loss of one or more biological functions of the protein (e.g., ability to inhibit the Mixed Lymphocyte Reaction), other functional activities (e.g., biological activities, ability to multimerize, ability to bind receptor, ability to generate antibodies, ability to bind antibodies) may still be retained. For example, the ability of the shortened polypeptide to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority ofthe residues ofthe complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a polypeptide with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [224] More in particular, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of N-terminal deletions of the mature extracellular portion ofthe B7-H13 protein (SEQ DD NO: 49): W-19 to V-239; Q-20 to V-239; V-21 to V-239; F-22 to V-239; G-23 to V-239; P-24 to V-239; D-25 to V-239; K-26 to V-239; P-27 to V-239; V-28 to V-239; Q-29 to V-239; A-30 to V-239; L-31 to V-239; V-32 to V-239; G-33 to V-239; E-34 to V-239; D-35 to V-239; A- 36 to V-239; A-37 to V-239; F-38 to V-239; S-39 to V-239; C-40 to V-239; F-41 to V-239; L-42 to V-239; S-43 to V-239; P-44 to V-239; K-45 to V-239; T-46 to V-239; N-47 to V- 239; A-48 to V-239; E-49 to V-239; A-50 to V-239; M-51 to V-239; E-52 to V-239; V-53 to V-239; R-54 to V-239; F-55 to V-239; F-56 to V-239; R-57 to V-239; G-58 to V-239; Q-59 to V-239; F-60 to V-239; S-61 to V-239; S-62 to V-239; V-63 to V-239; V-64 to V-239; H- 65 to V-239; L-66 to V-239; Y-67 to V-239; R-68 to V-239; D-69 to V-239; G-70 to V-239; K-71 to V-239; D-72 to V-239; Q-73 to V-239; P-74 to V-239; F-75 to V-239; M-76 to V- 239; Q-77 to V-239; M-78 to V-239; P-79 to V-239; Q-80 to V-239; Y-81 to V-239; Q-82 to V-239; G-83 to V-239; R-84 to V-239; T-85 to V-239; K-86 to V-239; L-87 to V-239; V-88 to V-239; K-89 to V-239; D-90 to V-239; S-91 to V-239; 1-92 to V-239; A-93 to V-239; E-94 to V-239; G-95 to V-239; R-96 to V-239; 1-97 to V-239; S-98 to V-239; L-99 to V-239; R- 100 to V-239; L-101 to V-239; E-102 to V-239; N-103 to V-239; 1-104 to V-239; T-105 to V-239; V-106 to V-239; L-107 to V-239; D-108 to V-239; A-109 to V-239; G-110 to V-239; L-l 11 to V-239; Y-l 12 to V-239; G-l 13 to V-239; C-l 14 to V-239; R-l 15 to V-239; 1-116 to V-239; S-117 to V-239; S-118 to V-239; Q-119 to V-239; S-120 to V-239; Y-121 to V-239; Y-122 to V-239; Q-123 to V-239; K-124 to V-239; A-125 to V-239; 1-126 to V-239; W-127 to V-239; E-128 to V-239; L-129 to V-239; Q-130 to V-239; V-131 to V-239; S-132 to V- 239; A-133 to V-239; L-134 to V-239; G-135 to V-239; S-136 to V-239; V-137 to V-239; P- 138 to V-239; L-139 to V-239; 1-140 to V-239; S-141 to V-239; 1-142 to V-239; T-143 to V- 239; G-144 to V-239; Y-145 to V-239; V-146 to V-239; D-147 to V-239; R-148 to V-239; D- 149 to V-239; 1-150 to V-239; Q-151 to V-239; L-152 to V-239; L-153 to V-239; C-154 to V-239; Q-155 to V-239; S-156 to V-239; S-157 to V-239; G-158 to V-239; W-159 to V-239; F-160 to V-239; P-161 to V-239; R-162 to V-239; P-163 to V-239; T-164 to V-239; A-165 to V-239; K-166 to V-239; W-167 to V-239; K-168 to V-239; G-169 to V-239; P-170 to V-239; Q-171 to V-239; G-172 to V-239; Q-173 to V-239; D-174 to V-239; L-175 to V-239; S-176 to V-239; T-177 to V-239; D-178 to V-239; S-179 to V-239; R-180 to V-239; T-181 to V- 239; N-182 to V-239; R-183 to V-239; D-184 to V-239; M-185 to V-239; H-186 to V-239; G-187 to V-239; L-188 to V-239; F-189 to V-239; D-190 to V-239; V-191 to V-239; E-192 to V-239; 1-193 to V-239; S-194 to V-239; L-195 to V-239; T-196 to V-239; V-197 to V- 239; Q-198 to V-239; E-199 to V-239; N-200 to V-239; A-201 to V-239; G-202 to V-239; S- 203 to V-239; 1-204 to V-239; S-205 to V-239; C-206 to V-239; S-207 to V-239; M-208 to V-239; R-209 to V-239; H-210 to V-239; A-211 to V-239; H-212 to V-239; L-213 to V-239; S-214 to V-239; R-215 to V-239; E-216 to V-239; V-217 to V-239; E-218 to V-239; S-219 to V-239; R-220 to V-239; V-221 to V-239; Q-222 to V-239; 1-223 to V-239; G-224 to V-239; D-225 to V-239; T-226 to V-239; F-227 to V-239; F-228 to V-239; E-229 to V-239; P-230 to V-239; 1-231 to V-239; S-232 to V-239; W-233 to V-239; and/or H-234 to V-239 of SEQ DD NO: 20. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [225] Additionally, the invention provides polynucleotides encoding polypeptides comprising, or alternatively consisting of, an amino acid sequence selected from the group of C-terminal deletions of the mature extracellular portion of the B7-H13 protein (SEQ ED NO: 49): Q-18 to K-238; Q-18 to T-237; Q-18 to A-236; Q-18 to L-235; Q-18 to H-234; Q-18 to W-233; Q-18 to S-232; Q-18 to 1-231; Q-18 to P-230; Q-18 to E-229; Q-18 to F-228; Q-18 to F-227; Q-18 to T-226; Q-18 to D-225; Q-18 to G-224; Q-18 to 1-223; Q-18 to Q-222; Q-18 to V-221; Q-18 to R-220; Q-18 to S-219; Q-18 to E-218; Q-18 to V-217; Q-18 to E-216; Q-18 to R-215; Q-18 to S-214; Q-18 to L-213; Q-18 to H-212; Q-18 to A-211; Q-18 to H-210; Q- 18 to R-209; Q-18 to M-208; Q-18 to S-207; Q-18 to C-206; Q-18 to S-205; Q-18 to 1-204; Q-18 to S-203; Q-18 to G-202; Q-18 to A-201; Q-18 to N-200; Q-18 to E-199; Q-18 to Q- 198; Q-18 to V-197; Q-18 to T-196; Q-18 to L-195; Q-18 to S-194; Q-18 to 1-193; Q-18 to E- 192; Q-18 to V-191; Q-18 to D-190; Q-18 to F-189; Q-18 to L-188; Q-18 to G-187; Q-18 to H-186; Q-18 to M-185; Q-18 to D-184; Q-18 to R-183; Q-18 to N-182; Q-18 to T-181; Q-18 to R-180; Q-18 to S-179; Q-18 to D-178; Q-18 to T-177; Q-18 to S-176; Q-18 to L-175; Q- 18 to D-174; Q-18 to Q-173; Q-18 to G-172; Q-18 to Q-171; Q-18 to P-170; Q-18 to G-169; Q-18 to K-168; Q-18 to W-167; Q-18 to K-166; Q-18 to A-165; Q-18 to T-164; Q-18 to P- 163; Q-18 to R-162; Q-18 to P-161; Q-18 to F-160; Q-18 to W-159; Q-18 to G-158; Q-18 to S-157; Q-18 to S-156; Q-18 to Q-155; Q-18 to C-154; Q-18 to L-153; Q-18 to L-152; Q-18 to Q-151; Q-18 to 1-150; Q-18 to D-149; Q-18 to R-148; Q-18 to D-147; Q-18 to V-146; Q- 18 to Y-145; Q-18 to G-144; Q-18 to T-143; Q-18 to 1-142; Q-18 to S-141; Q-18 to 1-140; Q- 18 to L-139; Q-18 to P-138; Q-18 to V-137; Q-18 to S-136; Q-18 to G-135; Q-18 to L-134; Q-18 to A-133; Q-18 to S-132; Q-18 to V-131; Q-18 to Q-130; Q-18 to L-129; Q-18 to E- 128; Q-18 to W-127; Q-18 to 1-126; Q-18 to A-125; Q-18 to K-124; Q-18 to Q-123; Q-18 to Y-122; Q-18 to Y-121; Q-18 to S-120; Q-18 to Q-119; Q-18 to S-118; Q-18 to S-117; Q-18 to 1-116; Q-18 to R-115; Q-18 to C-114; Q-18 to G-113; Q-18 to Y-112; Q-18 to L-lll; Q- 18 to G-110; Q-18 to A-109; Q-18 to D-108; Q-18 to L-107; Q-18 to V-106; Q-18 to T-105; Q-18 to 1-104; Q-18 to N-103; Q-18 to E-102; Q-18 to L-101; Q-18 to R-100; Q-18 to L-99; Q-18 to S-98; Q-18 to 1-97; Q-18 to R-96; Q-18 to G-95; Q-18 to E-94; Q-18 to A-93; Q-18 to 1-92; Q-18 to S-91; Q-18 to D-90; Q-18 to K-89; Q-18 to V-88; Q-18 to L-87; Q-18 to K- 86; Q-18 to T-85; Q-18 to R-84; Q-18 to G-83; Q-18 to Q-82; Q-18 to Y-81; Q-18 to Q-80; Q-18 to P-79; Q-18 to M-78; Q-18 to Q-77; Q-18 to M-76; Q-18 to F-75; Q-18 to P-74; Q-18 to Q-73; Q-18 to D-72; Q-18 to K-71; Q-18 to G-70; Q-18 to D-69; Q-18 to R-68; Q-18 to Y- 67; Q-18 to L-66; Q-18 to H-65; Q-18 to V-64; Q-18 to V-63; Q-18 to S-62; Q-18 to S-61; Q-18 to F-60; Q-18 to Q-59; Q-18 to G-58; Q-18 to R-57; Q-18 to F-56; Q-18 to F-55; Q-18 to R-54; Q-18 to V-53; Q-18 to E-52; Q-18 to M-51; Q-18 to A-50; Q-18 to E-49; Q-18 to A- 48; Q-18 to N-47; Q-18 to T-46; Q-18 to K-45; Q-18 to P-44; Q-18 to S-43; Q-18 to L-42; Q- 18 to F-41; Q-18 to C-40; Q-18 to S-39; Q-18 to F-38; Q-18 to A-37; Q-18 to A-36; Q-18 to D-35; Q-18 to E-34; Q-18 to G-33; Q-18 to V-32; Q-18 to L-31; Q-18 to A-30; Q-18 to Q-29; Q-18 to V-28; Q-18 to P-27; Q-18 to K-26; Q-18 to D-25; and/or Q-18 to P-24 of SEQ DD NO: 20. Polynucleotides encoding these polypeptides are also encompassed by the invention, as are antibodies that bind one or more of these polypeptides. Moreover, fragments and variants of these polypeptides (e.g., fragments as described herein, polypeptides at least 80%>, 85%, 90%, 95%, 96%, 97%, 98%, or 99% identical to these polypeptides and polypeptides encoded by the polynucleotide which hybridizes, under stringent conditions, to the polynucleotide encoding these polypeptides, or the complement thereof) are encompassed by the invention. Antibodies that bind these fragments and variants of the invention are also encompassed by the invention. Polynucleotides encoding these fragments and variants are also encompassed by the invention. [226] In addition, any of the above listed N- or C-terminal deletions can be combined to produce a N- and C-terminal deleted polypeptide. The invention also provides polypeptides comprising, or alternatively consisting of, one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of SEQ DD NO: 20, where n and m are integers as described above. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [227] The present invention is also directed to proteins containing polypeptides at least 80%, 85%, 90%, 92%, 93%, 94%, 95%, 96%, 97%, 98% or 99% identical to a polypeptide sequence set forth herein as m-n. In preferred embodiments, the application is directed to proteins containing polypeptides at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to polypeptides having the amino acid sequence of the specific N- and C-terminal deletions recited herein. Fragments and/or variants of these polypeptides, such as, for example, fragments and/or variants as described herein, are encompassed by the invention. Polynucleotides encoding these polypeptides (including fragments and/or variants) are also encompassed by the invention, as are antibodies that bind these polypeptides. [228] Also included are polynucleotide sequences encoding a polypeptide consisting of a portion of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, where this portion excludes any integer of amino acid residues from 1 to about 455 amino acids from the amino terminus of the complete amino acid sequence encoded by a cDNA clone contained in ATCC Deposit No. PTA-2332, or any integer of amino acid residues from 1 to about 455 amino acids from the carboxy terminus, or any combination of the above amino terminal and carboxy terminal deletions, of the complete amino acid sequence encoded by the cDNA clone contained in ATCC Deposit No. PTA- 2332. Polypeptides encoded by these polynucleotides also are encompassed by the invention. [229] As described herein or otherwise known in the art, the polynucleotides of the invention have uses that include, but are not limited to, serving as probes or primers in chromosome identification, chromosome mapping, and linkage analysis. [230] It has been discovered that this gene is expressed in small intestine and colon tissues. [231] Polynucleotides, translation products and antibodies corresponding to this gene are useful as reagents for differential identification of gastrointestinal system tissue(s) or cell type(s) present in a biological sample and for diagnosis of diseases and conditions which include, but are not limited to, diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly involving T cells, in addition to other immune system cells such as dendritic cells, neutrophils, and leukocytes, as well as diseases and/or disorders of the gastrointestinal system. Similarly, polypeptides and antibodies directed to these polypeptides are useful in providing immunological probes for differential identification of the tissue(s) or cell type(s). Particularly contemplated are the use of antibodies directed against the extracellular portion of this protein which act as antagonists for the activity of the B7-H13 protein. Such antagonistic antibodies would be useful for the prevention and/or inhibition of such biological activites as are disclosed herein (e.g. T cell modulated activities). [232] For a number of disorders of the above tissues or cells, particularly of the gastrointestinal and immune systems, expression of this gene at significantly higher or lower levels may be routinely detected in certain tissues or cell types (e.g., gastrointestinal, neural, cancerous and wounded tissues) or bodily fluids (e.g., lymph, serum, plasma, urine, synovial fluid and spinal fluid) or another tissue or cell sample taken from an individual having such a disorder, relative to the standard gene expression level, i.e., the expression level in healthy tissue or bodily fluid from an individual not having the disorder. [233] The homology to members of the B7 family of ligands indicates that the polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis, detection and/or treatment of diseases and/or disorders involving immune system activation, stimulation and/or surveillance, particularly as relating to T cells, neutrophils, dendritic cells, leukocytes, and other immune system cells. In particular, the translation product of the B7-H13 gene may be involved in the costimulation of T cells, binding to ICOS, and/or may play a role in modulation of the expression of particular cytokines, for example. [234] More generally, the tissue distribution in immune system cells indicates that this gene product may be involved in the regulation of cytokine production, antigen presentation, or other processes that may also suggest a usefulness in the treatment of cancer (e.g. by boosting immune responses). Since the gene is expressed in cells of immune system origin, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. [235] Polynucleotides, translation products and antibodies corresponding to this gene may be also used as an agent for immunological disorders including arthritis, asthma, immune deficiency diseases such as ADDS, leukemia, rheumatoid arthritis, inflammatory bowel disease, sepsis, acne, and psoriasis. In addition, this gene product may have commercial utility in the expansion of stem cells and committed progenitors of various blood lineages, and in the differentiation and/or proliferation of various cell types. Additionally, polynucleotides, translation products and antibodies corresponding to this gene may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. Furthermore, the protein may also be used to determine biological activity, to raise antibodies, as tissue markers, to isolate cognate ligands or receptors, to identify agents that modulate their interactions, in addition to its use as a nutritional supplement. [236] Expression within gastrointestinal tissue indicates that polynucleotides, translation products and antibodies corresponding to this gene are useful for the diagnosis and/or treatment of disorders involving the small intestine. This may include diseases associated with digestion and food absorption, as well as hematopoietic disorders involving the Peyer's patches of the small intestine, or other hematopoietic cells and tissues within the body. Similarly, expression of this gene product in colon tissue suggests again involvement in digestion, processing, and elimination of food, as well as a potential role for this gene as a diagnostic marker or causative agent in the development of colon cancer, and cancer in general. Additionally, translation products corresponding to this gene, as well as antibodies directed against these translation products, may show utility as a tumor marker and/or immunotherapy targets for the above listed tissues. TABLE 1 [237] Table 1 summarizes the information corresponding to each "Gene No:" described above. The nucleotide sequence identified as "NT SEQ DD NO:X" was assembled from partially homologous ("overlapping") sequences obtained from the "cDNA PlasmidN" identified in Table 1 and, in some cases, from additional related DNA clones. The overlapping sequences were assembled into a single contiguous sequence of high redundancy (usually three to five overlapping sequences at each nucleotide position), resulting in a final sequence identified as SEQ ED NO:X. [238] The cDNA PlasmidN was deposited on the date and given the corresponding deposit number listed in "ATCC Deposit Νo:Z and Date." Some of the deposits contain multiple different clones corresponding to the same gene. "Vector" refers to the type of vector contained in cDNA PlasmidN. [239] "Total NT Seq." refers to the total number of nucleotides in the contig identified by "Gene No:". The deposited plasmid contains all of these sequences, reflected by the nucleotide position indicated as "5' NT of Clone Seq." and the "3' NT of Clone Seq." of SEQ DD NO:X. The nucleotide position of SEQ ED NO:X of the putative methionine start codon (if present) is identified as "5' NT of Start Codon." Similarly , the nucleotide position of SEQ DD NO:X of the predicted signal sequence (if present) is identified as "5 1 NT of First AA of Signal Pep." [240] The translated amino acid sequence, beginning with the first translated codon of the polynucleotide sequence, is identified as "AA SEQ ED NO:Y," although other reading frames can also be easily translated using known molecular biology techniques. The polypeptides produced by these alternative open reading frames are specifically contemplated by the present invention. [241] SEQ DD NO:X (where X may be any of the polynucleotide sequences disclosed in the sequence listing) and the translated SEQ DD NO:Y (where Y may be any of the polypeptide sequences disclosed in the sequence listing) are sufficiently accurate and otherwise suitable for a variety of uses well known in the art and described further below. For instance, SEQ ED NO:X has uses including, but not limited to, in designing nucleic acid hybridization probes that will detect nucleic acid sequences contained in SEQ JJD NO:X or the cDNA contained in a deposited plasmid. These probes will also hybridize to nucleic acid molecules in biological samples, thereby enabling a variety of forensic and diagnostic methods of the invention. Similarly, polypeptides identified from SEQ DD NO:Y have uses that include, but are not limited to generating antibodies, which bind specifically to the secreted proteins encoded by the cDNA clones identified in Table 1. [242] Nevertheless, DNA sequences generated by sequencing reactions can contain sequencing errors. The errors exist as misidentified nucleotides, or as insertions or deletions of nucleotides in the generated DNA sequence. The erroneously inserted or deleted nucleotides cause frame shifts in the reading frames ofthe predicted amino acid sequence. In these cases, the predicted amino acid sequence diverges from the actual amino acid sequence, even though the generated DNA sequence may be greater than 99.9% identical to the actual DNA sequence (for example, one base insertion or deletion in an open reading frame of over 1000 bases). [243] Accordingly, for those applications requiring precision in the nucleotide sequence or the amino acid sequence, the present invention provides not only the generated nucleotide sequence identified as SEQ DD NO:X, and the predicted translated amino acid sequence identified as SEQ DD NO:Y, but also a sample of plasmid DNA containing a human cDNA of the invention deposited with the ATCC, as set forth in Table 1. The nucleotide sequence of each deposited plasmid can readily be determined by sequencing the deposited plasmid in accordance with known methods. [244] The predicted amino acid sequence can then be verified from such deposits. Moreover, the amino acid sequence ofthe protein encoded by a particular plasmid can also be directly determined by peptide sequencing or by expressing the protein in a suitable host cell containing the deposited human cDNA, collecting the protein, and determining its sequence. [245] Also provided in Table 1 is the name of the vector which contains the cDNA plasmid. Each vector is routinely used in the art. The following additional information is provided for convenience. [246] Vectors Lambda Zap (U.S. Patent Nos. 5,128,256 and 5,286,636), Uni-Zap XR (U.S. Patent Nos. 5,128, 256 and 5,286,636), Zap Express (U.S. Patent Nos. 5,128,256 and 5,286,636), pBluescript (pBS) (Short, J. M. et al., Nucleic Acids Res. 16:1583-1600 (1988); Alting-Mees, M. A. and Short, J. M., Nucleic Acids Res. 17:9494 (1989)) and pBK (Alting- Mees, M. A. et al., Strategies 5:58-61 (1992)) are commercially available from Stratagene Cloning Systems, Inc., 11011 N. Torrey Pines Road, La Jolla, CA, 92037. pBS contains an ampicillin resistance gene and pBK contains a neomycin resistance gene. Phagemid pBS may be excised from the Lambda Zap and Uni-Zap XR vectors, and phagemid pBK may be excised from the Zap Express vector. Both phagemids may be transformed into E. coli strain XL-1 Blue, also available from Stratagene. [247] Vectors pSportl, pCMVSport 1.0, pCMVSport 2.0 and pCMVSport 3.0, were obtained from Life Technologies, Inc., P. O. Box 6009, Gaithersburg, MD 20897. All Sport vectors contain an ampicillin resistance gene and may be transformed into E. coli strain DH10B, also available from Life Technologies. See, for instance, Graber, C. E., et al., Focus 15:59 (1993). Vector lafinid BA (Bento Soares, Columbia University, New York, NY) contains an ampicillin resistance gene and can be transformed into E. coli strain XL-1 Blue. Vector pCR ® 2.1, which is available from Invitrogen, 1600 Faraday Avenue, Carlsbad, CA 92008, contains an ampicillin resistance gene and may be transformed into E. coli strain DH10B, available from Life Technologies. See, for instance, Clark, J. M., Nuc. Acids Res. 16:9611-9686 (1988) and Mead, D. et al, Bio/Technology 9: (1991). [248] The present invention also relates to the genes corresponding to SEQ ED NO:X, SEQ DD NO:Y, and/or a deposited plasmid (cDNA plasmidN). The corresponding gene can be isolated in accordance with known methods using the sequence information disclosed herein. Such methods include, but are not limited to, preparing probes or primers from the disclosed sequence and identifying or amplifying the corresponding gene from appropriate sources of genomic material. [249] Also provided in the present invention are allelic variants, orthologs, and/or species homologs. Procedures known in the art can be used to obtain full-length genes, allelic variants, splice variants, full-length coding portions, orthologs, and/or species homologs of genes corresponding to SEQ ED ΝO:X, SEQ DD NO:Y, and/or cDNA plasmidN, using information from the sequences disclosed herein or the clones deposited with the ATCC. For example, allelic variants and/or species homologs may be isolated and identified by making suitable probes or primers from the sequences provided herein and screening a suitable nucleic acid source for allelic variants and/or the desired homologue. [250] The present invention provides a polynucleotide comprising, or alternatively consisting of, the nucleic acid sequence of SEQ DD ΝO:X and/or cDNA plasmidN. The present invention also provides a polypeptide comprising, or alternatively, consisting of, the polypeptide sequence of SEQ DD ΝO:Y, a polypeptide encoded by SEQ ED NO:X, and/or a polypeptide encoded by the cDNA in cDNA plasmid:V. Polynucleotides encoding a polypeptide comprising, or alternatively consisting of the polypeptide sequence of SEQ DD NO:Y, a polypeptide encoded by SEQ ED NO:X and/or a polypeptide encoded by the cDNA in cDNA plasmidN, are also encompassed by the invention. The present invention further encompasses a polynucleotide comprising, or alternatively consisting of the complement of the nucleic acid sequence of SEQ DD ΝO:X, and/or the complement of the coding strand of the cDNA in cDNA plasmidN. [251] Many polynucleotide sequences, such as EST sequences, are publicly available and accessible through sequence databases and may have been publicly available prior to conception of the present invention. Preferably, such related polynucleotides are specifically excluded from the scope of the present invention. To list every related sequence would unduly burden the disclosure of this application. Accordingly, preferably excluded from SEQ DD ΝO:X are one or more polynucleotides comprising a nucleotide sequence described by the general formula of a-b, where a is any integer between 1 and the final nucleotide minus 15 of SEQ ED NO:X, b is an integer of 15 to the final nucleotide of SEQ DD NO:X, where both a and b correspond to the positions of nucleotide residues shown in SEQ ED NO:X, and where b is greater than or equal to a + 14. RACE Protocol For Recovery of Full-Length Genes [252] Partial cDNA clones can be made full-length by utilizing the rapid amplification of cDNA ends (RACE) procedure described in Frohman, M.A., et al., Proc. Nat'l. Acad. Sci. USA, 85:8998-9002 (1988). A cDNA clone missing either the 5' or 3' end can be reconstructed to include the absent base pairs extending to the translational start or stop codon, respectively. In some cases, cDNAs are missing the start of translation, therefor. The following briefly describes a modification of this original 5' RACE procedure. Poly A+ or total RNA is reverse transcribed with Superscript II (Gibco/BRL) and an antisense or complementary primer specific to the cDNA sequence. The primer is removed from the reaction with a Microcon Concentrator (Amicon). The first-strand cDNA is then tailed with dATP and terminal deoxynucleotide transferase (Gibco/BRL). Thus, an anchor sequence is produced which is needed for PCR amplification. The second strand is synthesized from the dA-tail in PCR buffer, Taq DNA polymerase (Perkin-Elmer Cetus), an oligo-dT primer containing three adjacent restriction sites (Xhol, Sail and Clal) at the 5' end and a primer containing just these restriction sites. This double-stranded cDNA is PCR amplified for 40 cycles with the same primers as well as a nested cDNA-specific antisense primer. The PCR products are size-separated on an ethidium bromide-agarose gel and the region of gel containing cDNA products the predicted size of missing protein-coding DNA is removed. cDNA is purified from the agarose with the Magic PCR Prep kit (Promega), restriction digested with Xhol or Sail, and ligated to a plasmid such as pBluescript SKD (Stratagene) at Xhol and EcoRV sites. This DNA is transformed into bacteria and the plasmid clones sequenced to identify the correct protein-coding inserts. Correct 5' ends are confirmed by comparing this sequence with the putatively identified homologue and overlap with the partial cDNA clone. Similar methods known in the art and/or commercial kits are used to amplify and recover 3' ends. [253] Several quality-controlled kits are commercially available for purchase. Similar reagents and methods to those above are supplied in kit form from Gibco/BRL for both 5' and 3' RACE for recovery of full length genes. A second kit is available from Clontech which is a modification of a related technique, SLIC (single-stranded ligation to single-stranded cDNA), developed by Dumas et al., Nucleic Acids Res., 19:5227-32 (1991). The major differences in procedure are that the RNA is alkaline hydrolyzed after reverse transcription and RNA ligase is used to join a restriction site-containing anchor primer to the first-strand cDNA. This obviates the necessity for the dA-tailing reaction which results in a polyT stretch that is difficult to sequence past. [254] An alternative to generating 5' or 3' cDNA from RNA is to use cDNA library double-stranded DNA. An asymmetric PCR-amplified antisense cDNA strand is synthesized with an antisense cDNA-specific primer and a plasmid-anchored primer. These primers are removed and a symmetric PCR reaction is performed with a nested cDNA-specific antisense primer and the plasmid-anchored primer. RNA Ligase Protocol For Generating The 5' or 3' End Sequences To Obtain Full Length Genes [255] Once a gene of interest is identified, several methods are available for the identification of the 5' or 3' portions of the gene which may not be present in the original cDNA plasmid. These methods include, but are not limited to, filter probing, clone enrichment using specific probes and protocols similar and identical to 5' and 3 'RACE. While the full length gene may be present in the library and can be identified by probing, a useful method for generating the 5' or 3' end is to use the existing sequence information from the original cDNA to generate the missing information. A method similar to 5'RACE is available for generating the missing 5' end of a desired full-length gene. (This method was published by Fromont-Racine et al., Nucleic Acids Res., 21(7):1683-1684 (1993)). Briefly, a specific RNA oligonucleotide is ligated to the 5' ends of a population of RNA presumably containing full-length gene RNA transcript and a primer set containing a primer specific to the ligated RNA oligonucleotide and a primer specific to a known sequence of the gene of interest, is used to PCR amplify the 5' portion ofthe desired full length gene which may then be sequenced and used to generate the full length gene. This method starts with total RNA isolated from the desired source, poly A RNA may be used but is not a prerequisite for this procedure. The RNA preparation may then be treated with phosphatase if necessary to eliminate 5' phosphate groups on degraded or damaged RNA which may interfere with the later RNA ligase step. The phosphatase if used is then inactivated and the RNA is treated with tobacco acid pyrophosphatase in order to remove the cap structure present at the 5' ends of messenger RNAs. This reaction leaves a 5' phosphate group at the 5' end of the cap cleaved RNA which can then be ligated to an RNA oligonucleotide using T4 RNA ligase. This modified RNA preparation can then be used as a template for first strand cDNA synthesis using a gene specific oligonucleotide. The first strand synthesis reaction can then be used as a template for PCR amplification of the desired 5' end using a primer specific to the ligated RNA oligonucleotide and a primer specific to the known sequence of the B7-like gene of interest. The resultant product is then sequenced and analyzed to confirm that the 5' end sequence belongs to the relevant B7-like gene. Polynucleotide and Polypeptide Fragments [256] The present invention is also directed to polynucleotide fragments of the polynucleotides (nucleic acids) of the invention. In the present invention, a "polynucleotide fragment" refers to a polynucleotide having a nucleic acid sequence which: is a portion ofthe cDNA contained in cDNA plasmidN or encoding the polypeptide encoded by the cDΝA contained in cDΝA plasmidN; is a portion of the polynucleotide sequence in SEQ ED ΝO:X or the complementary strand thereto; is a polynucleotide sequence encoding a portion of the polypeptide of SEQ DD NO:Y; or is a polynucleotide sequence encoding a portion of a polypeptide encoded by SEQ ED NO:X. The nucleotide fragments of the invention are preferably at least about 15 nt, and more preferably at least about 20 nt, still more preferably at least about 30 nt, and even more preferably, at least about 40 nt, at least about 50 nt, at least about 75 nt, at least about 100 nt, at least about 125 nt, or at least about 150 nt in length. A fragment "at least 20 nt in length," for example, is intended to include 20 or more contiguous bases from, for example, the sequence contained in the cDNA in cDNA plasmidN, or the nucleotide sequence shown in SEQ ED ΝO:X or the complementary stand thereto, hi this context "about" includes the particularly recited value, or a value larger or smaller by several (5, 4, 3, 2, or 1) nucleotides. These nucleotide fragments have uses that include, but are not limited to, as diagnostic probes and primers as discussed herein. Of course, larger fragments (e.g., at least 150, 175, 200, 250, 500, 600, 1000, or 2000 nucleotides in length ) are also encompassed by the invention. [257] Moreover, representative examples of polynucleotide fragments of the invention, include, for example, fragments comprising, or alternatively consisting of, a sequence from about nucleotide number 1-50, 51-100, 101-150, 151-200, 201-250, 251-300, 301-350, 351- 400, 401-450, 451-500, 501-550, 551-600, 651-700,701- 750, 751-800, 800-850, 851-900, 901-950, 951-1000, 1001-1050, 1051-1100, 1101-1150, 1151-1200, 1201-1250, 1251-1300, 1301-1350, 1351-1400, 1401-1450, 1451-1500, 1501-1550, 1551-1600, 1601-1650, 1651- 1700, 1701-1750, 1751-1800, 1801-1850, 1851-1900, 1901-1950, 1951-2000, 2001-2050, 2051-2100, 2101-2150, 2151-2200, 2201-2250, 2251-2300, 2301-2350, 2351-2400, 2401- 2450, 2451-2500, 2501-2550, 2551-2600, 2601-2650, 2651-2700, 2701-2750, 2751-2800, 2801-2850, 2851-2900, 2901-2950, 2951-3000, 3001-3050, 3051-3100, 3101-3150, 3151- 3200, 3201-3250, 3251-3300, and/or 3301-3357 of SEQ DD NO:X, or the complementary strand thereto, hi this context "about" includes the particularly recited range or a range larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Preferably, these fragments encode a polypeptide which has a functional activity (e.g. biological activity) ofthe polypeptide encoded by a polynucleotide of which the sequence is a portion. More preferably, these fragments can be used as probes or primers as discussed herein. Polynucleotides which hybridize to one or more of these fragments under stringent hybridization conditions or alternatively, under lower stringency conditions, are also encompassed by the invention, as are polypeptides encoded by these polynucleotides or fragments. [258] Moreover, representative examples of polynucleotide fragments of the invention, include, for example, fragments comprising, or alternatively consisting of, a sequence from about nucleotide number 1-50, 51-100, 101-150, 151-200, 201-250, 251-300, 301-350, 351- 400, 401-450, 451-500, 501-550, 551-600, 601-650, 651-700, 701-750, 751-800, 801-850, 851-900, 901-950, 951-1000, 1001-1050, 1051-1100, 1101-1150, 1151-1200, 1201-1250, 1251-1300, 1301-1350, 1351-1400, 1401-1450, 1451-1500, 1501-1550, 1551-1600, 1601- 1650, 1651-1700, 1701-1750, 1751-1800, 1801-1850, 1851-1900, 1901-1950, 1951-2000, 2001-2050, 2051-2100, 2101-2150, 2151-2200, 2201-2250, 2251-2300, 2301-2350, 2351- 2400, 2401-2450, 2451-2500, 2501-2550, 2551-2600, 2601-2650, 2651-2700, 2701-2750, 2751-2800, 2801-2850, 2851-2900, 2901-2950, 2951-3000, 3001-3050, 3051-3100, 3101- 3150, 3151-3200, 3201-3250, 3251-3300, and/or 3301-3357 of the cDNA nucleotide sequence contained in cDNA plasmidN, or the complementary strand thereto. In this context "about" includes the particularly recited range or a range larger or smaller by several (5, 4, 3, 2, or 1) nucleotides, at either terminus or at both termini. Preferably, these fragments encode a polypeptide which has a functional activity (e.g. biological activity) of the polypeptide encoded by the cDΝA nucleotide sequence contained in cDΝA plasmidN. More preferably, these fragments can be used as probes or primers as discussed herein. Polynucleotides which hybridize to one or more of these fragments under stringent hybridization conditions, or alternatively, under lower stringency conditions are also encompassed by the invention, as are polypeptides encoded by these polynucleotides or fragments. [259] In the present invention, a "polypeptide fragment" refers to an amino acid sequence which is a portion of that contained in SEQ DD ΝO:Y, a portion of an amino acid sequence encoded by the polynucleotide sequence of SEQ DD NO:X, and/or encoded by the cDNA in cDNA plasmidN. Protein (polypeptide) fragments may be "free-standing," or comprised within a larger polypeptide of which the fragment forms a part or region, most preferably as a single continuous region. Representative examples of polypeptide fragments of the invention, include, for example, fragments comprising, or alternatively consisting of, an amino acid sequence from about amino acid number 1-20, 21-40, 41-60, 61-80, 81-100, 101- 120, 121-140, 141-160, 161-180, 181-200, 201-220, 221-240, 241-260, 261-280, 281-300, 301-320, 321-340, 341-360, 361-380, 381-400, 401-420, 421-440, and or 441-461 of the coding region of SEQ DD ΝO:Y. Moreover, polypeptide fragments of the invention may be at least about 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 100, 110, 120, 130, 140, or 150 amino acids in length. In this context "about" includes the particularly recited ranges or values, or ranges or values larger or smaller by several (5, 4, 3, 2, or 1) amino acids, at either terminus or at both termini. Polynucleotides encoding these polypeptide fragments are also encompassed by the invention. [260] Even if deletion of one or more amino acids from the N-terminus of a protein results in modification of loss of one or more biological functions of the protein, other functional activities (e.g., biological activities, ability to multimerize, ability to bind a ligand) may still be retained. For example, the ability of shortened muteins to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptides generally will be retained when less than the majority ofthe residues ofthe complete or mature polypeptide are removed from the N-terminus. Whether a particular polypeptide lacking N-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a mutein with a large number of deleted N-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [261] . Accordingly, polypeptide fragments of the invention include the secreted protein as well as the mature form. Further preferred polypeptide fragments include the secreted protein or the mature form having a continuous series of deleted residues from the amino or the carboxy terminus, or both. For example, any number of amino acids, ranging from 1-60, can be deleted from the amino terminus of either the secreted polypeptide or the mature form. Similarly, any number of amino acids, ranging from 1-30, can be deleted from the carboxy terminus of the secreted protein or mature form. Furthermore, any combination ofthe above amino and carboxy terminus deletions are preferred. Similarly, polynucleotides encoding these polypeptide fragments are also preferred. [262] The present invention further provides polypeptides having one or more residues deleted from the amino terminus of the amino acid sequence of a polypeptide disclosed herein (e.g., a polypeptide of SEQ DD NO:Y, a polypeptide encoded by the polynucleotide sequence contained in SEQ DD NO:X, and/or a polypeptide encoded by the cDNA contained in cDNA plasmidN). In particular, Ν-terminal deletions may be described by the general formula m-q, where q is a whole integer representing the total number of amino acid residues in a polypeptide ofthe invention (e.g., the polypeptide disclosed in SEQ DD ΝO:Y), and m is defined as any integer ranging from 2 to q-6. Polynucleotides encoding these polypeptides, including fragments and/or variants, are also encompassed by the invention. [263] Also as mentioned above, even if deletion of one or more amino acids from the C-terminus of a protein results in modification of loss of one or more biological functions of the protein, other functional activities (e.g., biological activities, ability to multimerize, ability to bind a ligand) may still be retained. For example the ability ofthe shortened mutein to induce and/or bind to antibodies which recognize the complete or mature forms of the polypeptide generally will be retained when less than the majority of the residues of the complete or mature polypeptide are removed from the C-terminus. Whether a particular polypeptide lacking C-terminal residues of a complete polypeptide retains such immunologic activities can readily be determined by routine methods described herein and otherwise known in the art. It is not unlikely that a mutein with a large number of deleted C-terminal amino acid residues may retain some biological or immunogenic activities. In fact, peptides composed of as few as six amino acid residues may often evoke an immune response. [264] Accordingly, the present invention further provides polypeptides having one or more residues from the carboxy terminus of the amino acid sequence of a polypeptide disclosed herein (e.g., a polypeptide of SEQ DD NO:Y, a polypeptide encoded by the polynucleotide sequence contained in SEQ DD NO:X, and/or a polypeptide encoded by the cDNA contained in cDNA plasmidN). In particular, C-terminal deletions may be described by the general formula 1-n, where n is any whole integer ranging from 6 to q-1, and where n corresponds to the position of an amino acid residue in a polypeptide of the invention. Polynucleotides encoding these polypeptides, including fragments and/or variants, are also encompassed by the invention. [265] In addition, any of the above described Ν- or C-terminal deletions can be combined to produce a Ν- and C-terminal deleted polypeptide. The invention also provides polypeptides having one or more amino acids deleted from both the amino and the carboxyl termini, which may be described generally as having residues m-n of a polypeptide encoded by SEQ DD ΝO:X (e.g., including, but not limited to, the preferred polypeptide disclosed as SEQ ED NO:Y), and/or the cDNA in cDNA plasmidN, and/or the complement thereof, where n and m are integers as described above. Polynucleotides encoding these polypeptides, including fragments and/or variants, are also encompassed by the invention. [266] Any polypeptide sequence contained in the polypeptide of SEQ DD ΝO:Y, encoded by the polynucleotide sequences set forth as SEQ ED NO:X, or encoded by the cDNA in cDNA plasmidN may be analyzed to determine certain preferred regions ofthe polypeptide. For example, the amino acid sequence of a polypeptide encoded by a polynucleotide sequence of SEQ DD ΝO:X or the cDNA in cDNA plasmidN may be analyzed using the default parameters of the DΝASTAR computer algorithm (DΝASTAR, Inc., 1228 S. Park St., Madison, WI 53715 USA; http://www.dnastar.com/). [267] Polypeptide regions that may be routinely obtained using the DΝASTAR computer algorithm include, but are not limited to, Garnier-Robson alpha-regions, beta-regions, turn-regions, and coil-regions, Chou-Fasman alpha-regions, beta-regions, and turn-regions, Kyte-Doolittle hydrophilic regions and hydrophobic regions, Eisenberg alpha- and beta-amphipathic regions, Karplus-Schulz flexible regions, Emini surface-forming regions and Jameson- Wolf regions of high antigenic index. Among highly preferred polynucleotides of the invention in this regard are those that encode polypeptides comprising regions that combine several structural features, such as several (e.g., 1, 2, 3 or 4) of the features set out above. [268] Additionally, Kyte-Doolittle hydrophilic regions and hydrophobic regions, Emini surface-forming regions, and Jameson- Wolf regions of high antigenic index (i.e., containing four or more contiguous amino acids having an antigenic index of greater than or equal to 1.5, as identified using the default parameters ofthe Jameson- Wolf program) can routinely be used to determine polypeptide regions that exhibit a high degree of potential for antigenicity. Regions of high antigenicity are determined from data by DΝASTAR analysis by choosing values which represent regions of the polypeptide which are likely to be exposed on the surface of the polypeptide in an environment in which antigen recognition may occur in the process of initiation of an immune response. [269] Preferred polypeptide fragments of the invention are fragments comprising, or alternatively, consisting of, an amino acid sequence that displays a functional activity (e.g. biological activity) of the polypeptide sequence of which the amino acid sequence is a fragment. By a polypeptide displaying a "functional activity" is meant a polypeptide capable of one or more known functional activities associated with a full-length protein, such as, for example, biological activity, antigenicity, immunogenicity, and/or multimerization, as described supra. [270] Other preferred polypeptide fragments are biologically active fragments. Biologically active fragments are those exhibiting activity similar, but not necessarily identical, to an activity ofthe polypeptide ofthe present invention. The biological activity of the fragments may include an improved desired activity, or a decreased undesirable activity. [271] In preferred embodiments, polypeptides of the invention comprise, or alternatively consist of, one, two, three, four, five or more ofthe antigenic fragments ofthe polypeptide of SEQ D NO:Y, or portions thereof. Polynucleotides encoding these polypeptides, including fragments and/or variants, are also encompassed by the invention. [272] The present invention encompasses polypeptides comprising, or alternatively consisting of, an epitope ofthe polypeptide sequence shown in SEQ ED NO:Y, or an epitope of the polypeptide sequence encoded by the cDNA in cDNA plasmidN, or encoded by a polynucleotide that hybridizes to the complement of an epitope encoding sequence of SEQ DD ΝO:X, or an epitope encoding sequence contained in cDNA plasmidN under stringent hybridization conditions, or alternatively, under lower stringency hybridization, as defined supra. The present invention further encompasses polynucleotide sequences encoding an epitope of a polypeptide sequence of the invention (such as, for example, the sequence disclosed in SEQ ED ΝO:X), polynucleotide sequences of the complementary strand of a polynucleotide sequence encoding an epitope of the invention, and polynucleotide sequences which hybridize to this complementary strand under stringent hybridization conditions, or alternatively, under lower stringency hybridization conditions, as defined supra. [273] The term "epitopes," as used herein, refers to portions of a polypeptide having antigenic or immunogenic activity in an animal, preferably a mammal, and most preferably in a human. In a preferred embodiment, the present invention encompasses a polypeptide comprising an epitope, as well as the polynucleotide encoding this polypeptide. An "immunogenic epitope," as used herein, is defined as a portion of a protein that elicits an antibody response in an animal, as determined by any method known in the art, for example, by the methods for generating antibodies described infra. (See, for example, Geysen et al., Proc. Natl. Acad. Sci. USA 81:3998- 4002 (1983)). The term "antigenic epitope," as used herein, is defined as a portion of a protein to which an antibody can immunospecifically bind its antigen as determined by any method well known in the art, for example, by the immunoassays described herein. Immunospecific binding excludes non-specific binding but does not necessarily exclude cross- reactivity with other antigens. Antigenic epitopes need not necessarily be immunogenic. [274] Fragments which function as epitopes may be produced by any conventional means. (See, e.g., Houghten, R. A., Proc. Natl. Acad. Sci. USA 82:5131-5135 (1985) further described in U.S. Patent No. 4,631,211.) [275] hi the present invention, antigenic epitopes preferably contain a sequence of at least 4, at least 5, at least 6, at least 7, more preferably at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 20, at least 25, at least 30, at least 40, at least 50, and, most preferably, between about 15 to about 30 amino acids. Preferred polypeptides comprising immunogenic or antigenic epitopes are at least 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, or 100 amino acid residues in length. Additional non-exclusive preferred antigenic epitopes include the antigenic epitopes disclosed herein, as well as portions thereof. Antigenic epitopes are useful, for example, to raise antibodies, including monoclonal antibodies, that specifically bind the epitope. Preferred antigenic epitopes include the antigenic epitopes disclosed herein, as well as any combination of two, three, four, five or more of these antigenic epitopes. Antigenic epitopes can be used as the target molecules in immunoassays. (See, for instance, Wilson et al., Cell 37:767-778 (1984); Sutcliffe et al., Science 219:660-666 (1983)). [276] Similarly, immunogenic epitopes can be used, for example, to induce antibodies according to methods well known in the art. (See, for instance, Sutcliffe et al., supra; Wilson et al., supra; Chow et al., Proc. Natl. Acad. Sci. USA 82:910-914; and Bittle et al., J. Gen. Nirol. 66:2347-2354 (1985). Preferred immunogenic epitopes include the immunogenic epitopes disclosed herein, as well as any combination of two, three, four, five or more of these immunogenic epitopes. The polypeptides comprising one or more immunogenic epitopes may be presented for eliciting an antibody response together with a carrier protein, such as an albumin, to an animal system (such as rabbit or mouse), or, if the polypeptide is of sufficient length (at least about 25 amino acids), the polypeptide may be presented without a carrier. However, immunogenic epitopes comprising as few as 8 to 10 amino acids have been shown to be sufficient to raise antibodies capable of binding to, at the very least, linear epitopes in a denatured polypeptide (e.g., in Western blotting). [277] Epitope-bearing polypeptides of the present invention may be used to induce antibodies according to methods well known in the art including, but not limited to, in vivo immunization, in vitro immunization, and phage display methods. See, e.g., Sutcliffe et al., supra; Wilson et al., supra, and Bittle et al., J. Gen. Nirol., 66:2347-2354 (1985). If in vivo immunization is used, animals may be immunized with free peptide; however, anti-peptide antibody titer may be boosted by coupling the peptide to a macromolecular carrier, such as keyhole limpet hemacyanin (KLH) or tetanus toxoid. For instance, peptides containing cysteine residues may be coupled to a carrier using a linker such as maleimidobenzoyl- Ν- hydroxysuccinimide ester (MBS), while other peptides may be coupled to carriers using a more general linking agent such as glutaraldehyde. Animals such as rabbits, rats and mice are immunized with either free or carrier- coupled peptides, for instance, by intraperitoneal and/or intradermal injection of emulsions containing about 100 μg of peptide or carrier protein and Freund's adjuvant or any other adjuvant known for stimulating an immune response. Several booster injections may be needed, for instance, at intervals of about two weeks, to provide a useful titer of anti-peptide antibody which can be detected, for example, by ELISA assay using free peptide adsorbed to a solid surface. The titer of anti-peptide antibodies in serum from an immunized animal maybe increased by selection of anti-peptide antibodies, for instance, by adsorption to the peptide on a solid support and elution of the selected antibodies according to methods well known in the art. [278] As one of skill in the art will appreciate, and as discussed above, the polypeptides ofthe present invention and immunogenic and/or antigenic epitope fragments thereof can be fused to other polypeptide sequences. For example, the polypeptides ofthe present invention may be fused with the constant domain of immunoglobulins (IgA, IgE, IgG, IgM), or portions thereof (CHI, CH2, CH3, or any combination thereof and portions thereof) resulting in chimeric polypeptides. Such fusion proteins may facilitate purification and may increase half-life in vivo. This has been shown for chimeric proteins consisting of the first two domains of the human CD4-polypeptide and various domains of the constant regions of the heavy or light chains of mammalian immunoglobulins. See, e.g., EP 394,827; Traunecker et al., Nature, 331:84-86 (1988). Enhanced delivery of an antigen across the epithelial barrier to the immune system has been demonstrated for antigens (e.g., insulin) conjugated to an FcRn binding partner such as IgG or Fc fragments (see, e.g., PCT Publications WO 96/22024 and WO 99/04813). IgG Fusion proteins that have a disulfide-linked dimeric structure due to the IgG portion desulfide bonds have also been found to be more efficient in binding and neutralizing other molecules than monomeric polypeptides or fragments thereof alone. See, e.g., Fountoulakis et al., J. Biochem., 270:3958-3964 (1995). [279] Similarly, EP-A-O 464 533 (Canadian counterpart 2045869) discloses fusion proteins comprising various portions of constant region of immunoglobulin molecules together with another human protein or part thereof. In many cases, the Fc part in a fusion protein is beneficial in therapy and diagnosis, and thus can result in, for example, improved pharmacokinetic properties. (EP-A 0232 262.) Alternatively, deleting the Fc part after the fusion protein has been expressed, detected, and purified, may be desired. For example, the Fc portion may hinder therapy and diagnosis if the fusion protein is used as an antigen for immunizations. In drug discovery, for example, human proteins, such as hE -5, have been fused with Fc portions for the purpose of high-throughput screening assays to identify antagonists of hIL-5. (See, D. Bennett et al., J. Molecular Recognition 8:52-58 (1995); K. Johanson et al., J. Biol. Chem. 270:9459-9471 (1995)). [280] Moreover, the polypeptides of the present invention can be fused to marker sequences, such as a peptide which facilitates purification of the fused polypeptide. h preferred embodiments, the marker amino acid sequence is a hexa-histidine peptide, such as the tag provided in a pQE vector (QIAGEN, Inc., 9259 Eton Avenue, Chatsworth, CA, 91311), among others, many of which are commercially available. As described in Gentz et al., Proc. Natl. Acad. Sci. USA 86:821-824 (1989), for instance, hexa-histidine provides for convenient purification of the fusion protein. Another peptide tag useful for purification, the "HA" tag, corresponds to an epitope derived from the influenza hemagglutinin protein. (Wilson et al, Cell 37:767 (1984)). [281] Thus, any of these above fusions can be engineered using the polynucleotides or the polypeptides ofthe present invention. [282] Nucleic acids encoding the above epitopes can also be recombined with a gene of interest as an epitope tag (e.g., the hemagglutinin ("HA") tag or flag tag) to aid in detection and purification of the expressed polypeptide. For example, a system described by Janknecht et al. allows for the ready purification of non-denatured fusion proteins expressed in human cell lines (Janknecht et al., Proc. Natl. Acad. Sci. USA 88:8972- 897 (1991)). In this system, the gene of interest is subcloned into a vaccinia recombination plasmid such that the open reading frame of the gene is translationally fused to an amino-terminal tag consisting of six histidine residues. The tag serves as a matrix binding domain for the fusion protein. Extracts from cells infected with the recombinant vaccinia virus are loaded onto Ni2+ nitriloacetic acid-agarose column and histidine-tagged proteins can be selectively eluted with imidazole-containing buffers. [283] Additional fusion proteins of the invention may be generated through the techniques of gene-shuffling, motif-shuffling, exon-shuffling, and/or codon-shuffling (collectively referred to as "DNA shuffling"). DNA shuffling may be employed to modulate the activities of polypeptides of the invention, such methods can be used to generate polypeptides with altered activity, as well as agonists and antagonists of the polypeptides. See, generally, U.S. Patent Nos. 5,605,793; 5,811,238; 5,830,721; 5,834,252; and 5,837,458, and Patten et al., Curr. Opinion Biotechnol. 8:724-33 (1997); Harayama, Trends Biotechnol. 16(2):76-82 (1998); Hansson, et al, J. Mol. Biol. 287:265-76 (1999); and Lorenzo and Blasco, Biotechniques 24(2):308- 13 (1998) (each of these patents and publications are hereby incorporated by reference in its entirety). In one embodiment, alteration of polynucleotides corresponding to SEQ DD NO:X and the polypeptides encoded by these polynucleotides may be achieved by DNA shuffling. DNA shuffling involves the assembly of two or more DNA segments by homologous or site-specific recombination to generate variation in the polynucleotide sequence. In another embodiment, polynucleotides of the invention, or the encoded polypeptides, may be altered by being subjected to random mutagenesis by error-prone PCR, random nucleotide insertion or other methods prior to recombination. In another embodiment, one or more components, motifs, sections, parts, domains, fragments, etc., of a polynucleotide encoding a polypeptide ofthe invention may be recombined with one or more components, motifs, sections, parts, domains, fragments, etc. of one or more heterologous molecules. Polynucleotide and Polypeptide Variants [284] The invention also encompasses B7-like variants. The present invention is directed to variants of the polynucleotide sequence disclosed in SEQ DD NO:X or the complementary strand thereto, and/or the cDNA sequence contained in cDNA plasmidN. [285] The present invention also encompasses variants of the polypeptide sequence disclosed in SEQ ED ΝO:Y, a polypeptide sequence encoded by the polynucleotide sequence in SEQ DD ΝO:X and/or a polypeptide sequence encoded by the cDNA in cDNA plasmidN. [286] "Variant" refers to a polynucleotide or polypeptide differing from the polynucleotide or polypeptide of the present invention, but retaining properties thereof. Generally, variants are overall closely similar, and, in many regions, identical to the polynucleotide or polypeptide ofthe present invention. [287] Thus, one aspect of the invention provides an isolated nucleic acid molecule comprising, or alternatively consisting of, a polynucleotide having a nucleotide sequence selected from the group consisting of: (a) a nucleotide sequence described in SEQ DD NO:X or contained in the cDNA sequence of PlasmidN; (b) a nucleotide sequence in SEQ ED ΝO:X or the cDNA in PlasmidN which encodes the complete amino acid sequence of SEQ ED ΝO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN; (c) a nucleotide sequence in SEQ DD ΝO:X or the cDNA in PlasmidN which encodes a mature B7-like polypeptide; (d) a nucleotide sequence in SEQ ED ΝO:X or the cDNA sequence of PlasmidN, which encodes a biologically active fragment of a B7-like polypeptide; (e) a nucleotide sequence in SEQ ED ΝO:X or the cDNA sequence of PlasmidN, which encodes an antigenic fragment of a B7-like polypeptide; (f) a nucleotide sequence encoding a B7-like polypeptide comprising the complete amino acid sequence of SEQ DD ΝO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN; (g) a nucleotide sequence encoding a mature B7-like polypeptide of the amino acid sequence of SEQ ED ΝO:Y or the amino acid sequence encoded by the cDNA in PlasmidN; (h) a nucleotide sequence encoding a biologically active fragment of a B7-like polypeptide having the complete amino acid sequence of SEQ DD ΝO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN; (i) a nucleotide sequence encoding an antigenic fragment of a B7-like polypeptide having the complete amino acid sequence of SEQ DD ΝO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN; and (j) a nucleotide sequence complementary to any of the nucleotide sequences in (a), (b), (c), (d), (e), (f), (g), (h), or (i) above. [288] The present invention is also directed to nucleic acid molecules which comprise, or alternatively consist of, a nucleotide sequence which is at least 80%>, 85%, 90%, 95%, 96%, 97%, 98%, 99% or 100%, identical to, for example, any of the nucleotide sequences in (a), (b), (c), (d), (e), (f), (g), (h), (i), or (j) above, the nucleotide coding sequence in SEQ DD ΝO:X or the complementary strand thereto, the nucleotide coding sequence of the cDNA contained in PlasmidN or the complementary strand thereto, a nucleotide sequence encoding the polypeptide of SEQ DD NO:Y, a nucleotide sequence encoding a polypeptide sequence encoded by the nucleotide sequence in SEQ DD NO:X, a polypeptide sequence encoded by the complement of the polynucleotide sequence in SEQ DD NO:X, a nucleotide sequence encoding the polypeptide encoded by the cDNA contained in PlasmidN, the nucleotide sequence in SEQ DD ΝO:X encoding the polypeptide sequence as defined in column 10 of Table 1 or the complementary strand thereto, nucleotide sequences encoding the polypeptide as defined in column 10 of Table 1 or the complementary strand thereto, and/or polynucleotide fragments of any of these nucleic acid molecules (e.g., those fragments described herein). Polynucleotides wliich hybridize to the complement of these nucleic acid molecules under stringent hybridization conditions or alternatively, under lower stringency conditions, are also encompassed by the invention, as are polypeptides encoded by these polynucleotides and nucleic acids. [289] In a preferred embodiment, the invention encompasses nucleic acid molecules which comprise, or alternatively, consist of a polynucleotide which hybridizes under stringent hybridization conditions, or alternatively, under lower stringency conditions, to a polynucleotide in (a), (b), (c), (d), (e), (f), (g), (h), or (i), above, as are polypeptides encoded by these polynucleotides. In another preferred embodiment, polynucleotides which hybridize to the complement of these nucleic acid molecules under stringent hybridization conditions, or alternatively, under lower stringency conditions, are also encompassed by the invention, as are polypeptides encoded by these polynucleotides. [290] In another embodiment, the invention provides a purified protein comprising, or alternatively consisting of, a polypeptide having an amino acid sequence selected from the group consisting of: (a) the complete amino acid sequence of SEQ ED NO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN; (b) the amino acid sequence of a mature form of a B7-like polypeptide having the amino acid sequence of SEQ ED ΝO:Y or the amino acid sequence encoded by the cDNA in PlasmidN; (c) the amino acid sequence of a biologically active fragment of a B7-like polypeptide having the complete amino acid sequence of SEQ DD ΝO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN; and (d) the amino acid sequence of an antigenic fragment of a B7-like polypeptide having the complete amino acid sequence of SEQ DD ΝO:Y or the complete amino acid sequence encoded by the cDNA in PlasmidN. [291] The present invention is also directed to proteins which comprise, or alternatively consist of, an amino acid sequence which is at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99% or 100%, identical to, for example, any of the amino acid sequences in (a), (b), (c), or (d), above, the amino acid sequence shown in SEQ ED NO:Y, the amino acid sequence encoded by the cDNA contained in PlasmidN, the amino acid sequence as defined in column 10 of Table 1, an amino acid sequence encoded by the nucleotide sequence in SEQ ED ΝO:X, and an amino acid sequence encoded by the complement of the polynucleotide sequence in SEQ ED NO:X. Fragments of these polypeptides are also provided (e.g., those fragments described herein). Further proteins encoded by polynucleotides which hybridize to the complement of the nucleic acid molecules encoding these amino acid sequences under stringent hybridization conditions or alternatively, under lower stringency conditions, are also encompassed by the invention, as are the polynucleotides encoding these proteins. [292] By a nucleic acid having a nucleotide sequence at least, for example, 95% "identical" to a reference nucleotide sequence of the present invention, it is intended that the nucleotide sequence of the nucleic acid is identical to the reference sequence except that the nucleotide sequence may include up to five point mutations per each 100 nucleotides of the reference nucleotide sequence encoding the polypeptide. hi other words, to obtain a nucleic acid having a nucleotide sequence at least 95% identical to a reference nucleotide sequence, up to 5% of the nucleotides in the reference sequence may be deleted or substituted with another nucleotide, or a number of nucleotides up to 5% of the total nucleotides in the reference sequence may be inserted into the reference sequence. The query sequence may be an entire sequence referred to in Table 1, the ORF (open reading frame), or any fragment specified as described herein. [293] As a practical matter, whether any particular nucleic acid molecule or polypeptide is at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to a nucleotide sequence of the present invention can be determined conventionally using known computer programs. A preferred method for determining the best overall match between a query sequence (a sequence of the present invention) and a subject sequence, also referred to as a global sequence alignment, can be determined using the FASTDB computer program based on the algorithm of Brutlag et al. (Comp. App. Biosci. 6:237-245 (1990)). In a sequence alignment the query and subject sequences are both DNA sequences. An RNA sequence can be compared by converting U's to T's. The result of said global sequence alignment is in percent identity. Preferred parameters used in a FASTDB alignment of DNA sequences to calculate percent identiy are: Matrix=Unitary, k-tuple=4, Mismatch Penalty=l, Joining Penalty=30, Randomization Group Length=0, Cutoff Score=l, Gap Penalty=5, Gap Size Penalty 0.05, Window Size=500 or the lenght of the subject nucleotide sequence, whichever is shorter. [294] If the subject sequence is shorter than the query sequence because of 5' or 3' deletions, not because of internal deletions, a manual correction must be made to the results. This is because the FASTDB program does not account for 5' and 3' truncations ofthe subject sequence when calculating percent identity. For subject sequences truncated at the 5' or 3' ends, relative to the query sequence, the percent identity is corrected by calculating the number of bases of the query sequence that are 5' and 3' of the subject sequence, which are not matched/aligned, as a percent of the total bases of the query sequence. Whether a nucleotide is matched/aligned is determined by results of the FASTDB sequence alignment. This percentage is then subtracted from the percent identity, calculated by the above FASTDB program using the specified parameters, to arrive at a final percent identity score. This corrected score is what is used for the purposes of the present invention. Only bases outside the 5' and 3' bases of the subject sequence, as displayed by the FASTDB alignment, which are not matched/aligned with the query sequence, are calculated for the purposes of manually adjusting the percent identity score. [295] For example, a 90 base subject sequence is aligned to a 100 base query sequence to determine percent identity. The deletions occur at the 5' end of the subject sequence and therefore, the FASTDB alignment does not show a matched/alignment ofthe first 10 bases at 5' end. The 10 unpaired bases represent 10% ofthe sequence (number of bases at the 5' and 3' ends not matched/total number of bases in the query sequence) so 10% is subtracted from the percent identity score calculated by the FASTDB program. If the remaining 90 bases were perfectly matched the final percent identity would be 90%>. In another example, a 90 base subject sequence is compared with a 100 base query sequence. This time the deletions are internal deletions so that there are no bases on the 5' or 3' of the subject sequence which are not matched/aligned with the query. In this case the percent identity calculated by FASTDB is not manually corrected. Once again, only bases 5' and 3' ofthe subject sequence which are not matched/aligned with the query sequence are manually corrected for. No other manual corrections are to made for the purposes ofthe present invention. [296] By a polypeptide having an amino acid sequence at least, for example, 95% "identical" to a query amino acid sequence of the present invention, it is intended that the amino acid sequence of the subject polypeptide is identical to the query sequence except that the subject polypeptide sequence may include up to five amino acid alterations per each 100 amino acids of the query amino acid sequence. In other words, to obtain a polypeptide having an amino acid sequence at least 95% identical to a query amino acid sequence, up to 5% of the amino acid residues in the subject sequence may be inserted, deleted, (indels) or substituted with another amino acid. These alterations of the reference sequence may occur at the amino or carboxy terminal positions ofthe reference amino acid sequence or anywhere between those terminal positions, interspersed either individually among residues in the reference sequence or in one or more contiguous groups within the reference sequence. [297] As a practical matter, whether any particular polypeptide is at least 80%, 85%, 90%), 95%, 96%, 97%, 98% or 99% identical to, for instance, the amino acid sequence referred to in Table 1 or a fragment thereof, the amino acid sequence encoded by the nucleotide sequence in SEQ DD NO:X or a fragment thereof, or to the amino acid sequence encoded by the cDNA in cDNA plasmidN, or a fragment thereof, can be determined conventionally using known computer programs. A preferred method for determing the best overall match between a query sequence (a sequence of the present invention) and a subject sequence, also referred to as a global sequence alignment, can be determined using the FASTDB computer program based on the algorithm of Brutlag et al. (Comp. App. Biosci.6:237- 245(1990)). In a sequence alignment the query and subject sequences are either both nucleotide sequences or both amino acid sequences. The result of said global sequence alignment is in percent identity. Preferred parameters used in a FASTDB amino acid alignment are: 0, k-tuple=2, Mismatch Penalty=l, Joining Penalty=20, Randomization Group Length=0, Cutoff Score=l, Window Size=sequence length, Gap Penalty=5, Gap Size Penalty=0.05, Window Size=500 or the length ofthe subject amino acid sequence, whichever is shorter. [298] If the subject sequence is shorter than the query sequence due to Ν- or C-terminal deletions, not because of internal deletions, a manual correction must be made to the results. This is because the FASTDB program does not account for Ν- and C-terminal truncations of the subject sequence when calculating global percent identity. For subject sequences truncated at the Ν- and C-termini, relative to the query sequence, the percent identity is corrected by calculating the number of residues of the query sequence that are N- and C- terminal ofthe subject sequence, which are not matched/aligned with a corresponding subject residue, as a percent of the total bases of the query sequence. Whether a residue is matched/aligned is determined by results of the FASTDB sequence alignment. This percentage is then subtracted from the percent identity, calculated by the above FASTDB program using the specified parameters, to arrive at a final percent identity score. This final percent identity score is what is used for the purposes ofthe present invention. Only residues to the N- and C-termini of the subject sequence, which are not matched aligned with the query sequence, are considered for the purposes of manually adjusting the percent identity score. That is, only query residue positions outside the farthest N- and C- terminal residues ofthe subject sequence. [299] For example, a 90 amino acid residue subject sequence is aligned with a 100 residue query sequence to determine percent identity. The deletion occurs at the N-terminus of the subject sequence and therefore, the FASTDB alignment does not show a matching/alignment of the first 10 residues at the N-terminus. The 10 unpaired residues represent 10% ofthe sequence (number of residues at the - and C- termini not matched/total number of residues in the query sequence) so 10% is subtracted from the percent identity score calculated by the FASTDB program. If the remaining 90 residues were perfectly matched the final percent identity would be 90%. In another example, a 90 residue subject sequence is compared with a 100 residue query sequence. This time the deletions are internal deletions so there are no residues at the N- or C-termini ofthe subject sequence which are not matched/aligned with the query. In this case the percent identity calculated by FASTDB is not manually corrected. Once again, only residue positions outside the N- and C-terminal ends of the subject sequence, as displayed in the FASTDB alignment, which are not matched/aligned with the query sequence are manually corrected for. No other manual corrections are to made for the purposes ofthe present invention. [300] The variants may contain alterations in the coding regions, non-coding regions, or both. Especially preferred are polynucleotide variants containing alterations which produce silent substitutions, additions, or deletions, but do not alter the properties or activities of the encoded polypeptide. Nucleotide variants produced by silent substitutions due to the degeneracy of the genetic code are preferred. Moreover, variants in which less than 50, less than 40, less than 30, less than 20, less than 10, or 5-50, 5-25, 5-10, 1-5, or 1-2 amino acids are substituted, deleted, or added in any combination are also preferred. Polynucleotide variants can be produced for a variety of reasons, e.g., to optimize codon expression for a particular host (change codons in the human mRNA to those preferred by a bacterial host such as E. coli). [301] Naturally occurring variants are called "allelic variants," and refer to one of several alternate forms of a gene occupying a given locus on a chromosome of an organism. (Genes U, Lewin, B., ed., John Wiley & Sons, New York (1985)). These allelic variants can vary at either the polynucleotide and/or polypeptide level and are included in the present invention. Alternatively, non-naturally occurring variants may be produced by mutagenesis techniques or by direct synthesis. [302] Using known methods of protein engineering and recombinant DNA technology, variants may be generated to improve or alter the characteristics of the polypeptides of the present invention. For instance, as discussed herein, one or more amino acids can be deleted from the N-terminus or C-terminus of the polypeptide of the present invention without substantial loss of biological function. The authors of Ron et al., J. Biol. Chem. 268: 2984- 2988 (1993), reported variant KGF proteins having heparin binding activity even after deleting 3, 8, or 27 amino-terminal amino acid residues. Similarly, Interferon gamma exhibited up to ten times higher activity after deleting 8-10 amino acid residues from the carboxy terminus of this protein. (Dobeli et al., J. Biotechnology 7:199-216 (1988)). [303] Moreover, ample evidence demonstrates that variants often retain a biological activity similar to that of the naturally occurring protein. For example, Gayle and coworkers (J. Biol. Chem 268:22105-22111 (1993)) conducted extensive mutational analysis of human cytokine E -la. They used random mutagenesis to generate over 3,500 individual E -la mutants that averaged 2.5 amino acid changes per variant over the entire length of the molecule. Multiple mutations were examined at every possible amino acid position. The investigators found that "[m]ost of the molecule could be altered with little effect on either [binding or biological activity]." (See, Abstract.) In fact, only 23 unique amino acid sequences, out of more than 3,500 nucleotide sequences examined, produced a protein that significantly differed in activity from wild-type. [304] Furthermore, as discussed herein, even if deleting one or more amino acids from the N-terminus or C-terminus of a polypeptide results in modification or loss of one or more biological functions, other biological activities may still be retained. For example, the ability of a deletion variant to induce and/or to bind antibodies which recognize the secreted form will likely be retained when less than the majority of the residues of the secreted form are removed from the N-terminus or C-terminus. Whether a particular polypeptide lacking N- or C-terminal residues of a protein retains such immunogenic activities can readily be determined by routine methods described herein and otherwise known in the art. [305] Thus, the invention further includes polypeptide variants which show a functional activity (e.g. biological activity) of the polypeptide of the invention, of which they are a variant. Such variants include deletions, insertions, inversions, repeats, and substitutions selected according to general rules known in the art so as have little effect on activity. [306] The present application is directed to nucleic acid molecules at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99% or 100% identical to the nucleic acid sequences disclosed herein, (e.g., encoding a polypeptide having the amino acid sequence of an N and/or C terminal deletion), irrespective of whether they encode a polypeptide having functional activity. This is because even where a particular nucleic acid molecule does not encode a polypeptide having functional activity, one of skill in the art would still know how to use the nucleic acid molecule, for instance, as a hybridization probe or a polymerase chain reaction (PCR) primer. Uses ofthe nucleic acid molecules ofthe present invention that do not encode a polypeptide having functional activity include, inter alia, (1) isolating a gene or allelic or splice variants thereof in a cDNA library; (2) in situ hybridization (e.g., "FISH") to metaphase chromosomal spreads to provide precise chromosomal location of the gene, as described in Verma et al., Human Chromosomes: A Manual of Basic Techniques, Pergamon Press, New York (1988); and (3) Northern Blot analysis for detecting mRNA expression in specific tissues. [307] Preferred, however, are nucleic acid molecules having sequences at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%o or 100% identical to the nucleic acid sequences disclosed herein, which do, in fact, encode a polypeptide having functional activity of a polypeptide ofthe invention. [308] Of course, due to the degeneracy of the genetic code, one of ordinary skill in the art will immediately recognize that a large number of the nucleic acid molecules having a sequence at least 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%, or 100% identical to, for example, the nucleic acid sequence of the cDNA in cDNA plasmidN, the nucleic acid sequence referred to in Table 1 (SEQ DD ΝO:X), or fragments thereof, will encode polypeptides "having functional activity." In fact, since degenerate variants of any of these nucleotide sequences all encode the same polypeptide, in many instances, this will be clear to the skilled artisan even without performing the above described comparison assay. It will be further recognized in the art that, for such nucleic acid molecules that are not degenerate variants, a reasonable number will also encode a polypeptide having functional activity. This is because the skilled artisan is fully aware of amino acid substitutions that are either less likely or not likely to significantly effect protein function (e.g., replacing one aliphatic amino acid with a second aliphatic amino acid), as further described below. [309] For example, guidance concerning how to make phenotypically silent amino acid substitutions is provided in Bowie et al., "Deciphering the Message in Protein Sequences: Tolerance to Amino Acid Substitutions," Science 247:1306-1310 (1990), wherein the authors indicate that there are two main strategies for studying the tolerance of an amino acid sequence to change. [310] The first strategy exploits the tolerance of amino acid substitutions by natural selection during the process of evolution. By comparing amino acid sequences in different species, conserved amino acids can be identified. These conserved amino acids are likely important for protein function. In contrast, the amino acid positions where substitutions have been tolerated by natural selection indicates that these positions are not critical for protein function. Thus, positions tolerating amino acid substitution could be modified while still maintaining biological activity ofthe protein. [311] The second strategy uses genetic engineering to introduce amino acid changes at specific positions of a cloned gene to identify regions critical for protein function. For example, site directed mutagenesis or alanine-scanning mutagenesis (introduction of single alanine mutations at every residue in the molecule) can be used. (Cunningham and Wells, Science 244:1081-1085 (1989)). The resulting mutant molecules can then be tested for biological activity. [312] As the authors state, these two strategies have revealed that proteins are surprisingly tolerant of amino acid substitutions. The authors further indicate which amino acid changes are likely to be permissive at certain amino acid positions in the protein. For example, most buried (within the tertiary structure ofthe protein) amino acid residues require nonpolar side chains, whereas few features of surface side chains are generally conserved. Moreover, tolerated conservative amino acid substitutions involve replacement of the aliphatic or hydrophobic amino acids Ala, Val, Leu and He; replacement of the hydroxyl residues Ser and Thr; replacement of the acidic residues Asp and Glu; replacement of the amide residues Asn and Gin, replacement of the basic residues Lys, Arg, and His; replacement of the aromatic residues Phe, Tyr, and Tip, and replacement of the small-sized amino acids Ala, Ser, Thr, Met, and Gly. Besides conservative amino acid substitution, variants of the present invention include (i) substitutions with one or more of the non- conserved amino acid residues, where the substituted amino acid residues may or may not be one encoded by the genetic code, or (ii) substitution with one or more of amino acid residues having a substituent group, or (iii) fusion of the mature polypeptide with another compound, such as a compound to increase the stability and/or solubility ofthe polypeptide (for example, polyethylene glycol), or (iv) fusion of the polypeptide with additional amino acids, such as, for example, an IgG Fc fusion region peptide, or leader or secretory sequence, or a sequence facilitating purification or (v) fusion of the polypeptide with another compound, such as albumin (including but not limited to recombinant albumin (see, e.g., U.S. Patent No. 5,876,969, issued March 2, 1999, EP Patent 0 413 622, and U.S. PatentNo. 5,766,883, issued June 16, 1998, herein incorporated by reference in their entirety)). Such variant polypeptides are deemed to be within the scope of those skilled in the art from the teachings herein. [313] For example, polypeptide variants containing amino acid substitutions of charged amino acids with other charged or neutral amino acids may produce proteins with improved characteristics, such as less aggregation. Aggregation of pharmaceutical formulations both reduces activity and increases clearance due to the aggregate's immunogenic activity. (Pinckard et al., Clin. Exp. Immunol. 2:331-340 (1967); Robbins et al., Diabetes 36: 838-845 (1987); Cleland et al, Crit. Rev. Therapeutic Drug Carrier Systems 10:307-377 (1993)). [314] A further embodiment of the invention relates to a polypeptide which comprises the amino acid sequence of a polypeptide having an amino acid sequence which contains at least one amino acid substitution, but not more than 50 amino acid substitutions, even more preferably, not more than 40 amino acid substitutions, still more preferably, not more than 30 amino acid substitutions, and still even more preferably, not more than 20 amino acid substitutions. Of course it is highly preferable for a polypeptide to have an amino acid sequence which comprises the amino acid sequence of a polypeptide of SEQ DD NO:Y, an amino acid sequence encoded by SEQ DD NO:X, and/or the amino acid sequence encoded by the cDNA in cDNA plasmidN which contains, in order of ever-increasing preference, at least one, but not more than 10, 9, 8, 7, 6, 5, 4, 3, 2 or 1 amino acid substitutions. In specific embodiments, the number of additions, substitutions, and/or deletions in the amino acid sequence of SEQ DD NO:Y or fragments thereof (e.g., the mature form and/or other fragments described herein), an amino acid sequence encoded by SEQ ED NO:X or fragments thereof, and/or the amino acid sequence encoded by cDNA plasmidN or fragments thereof, is 1-5, 5-10, 5-25, 5-50, 10-50 or 50-150, conservative amino acid substitutions are preferable. As discussed herein, any polypeptide of the present invention can be used to generate fusion proteins. For example, the polypeptide of the present invention, when fused to a second protein, can be used as an antigenic tag. Antibodies raised against the polypeptide of the present invention can be used to indirectly detect the second protein by binding to the polypeptide. Moreover, because secreted proteins target cellular locations based on trafficking signals, polypeptides of the present invention which are shown to be secreted can be used as targeting molecules once fused to other proteins. [315] Examples of domains that can be fused to polypeptides of the present invention include not only heterologous signal sequences, but also other heterologous functional regions. The fusion does not necessarily need to be direct, but may occur through linker sequences. [316] In certain preferred embodiments, proteins of the invention comprise fusion proteins wherein the polypeptides are Ν and/or C- terminal deletion mutants, hi preferred embodiments, the application is directed to nucleic acid molecules at least 80%, 85%, 90%, 95%, 96%, 97%, 98% or 99% identical to the nucleic acid sequences encoding polypeptides having the amino acid sequence of the specific Ν- and C-terminal deletions mutants. Polynucleotides encoding these polypeptides, including fragments and/or variants, are also encompassed by the invention. [317] Moreover, fusion proteins may also be engineered to improve characteristics ofthe polypeptide of the present invention. For instance, a region of additional amino acids, particularly charged amino acids, may be added to the Ν-terminus of the polypeptide to improve stability and persistence during purification from the host cell or subsequent handling and storage. Also, peptide moieties may be added to the polypeptide to facilitate purification. Such regions may be removed prior to final preparation ofthe polypeptide. The addition of peptide moieties to facilitate handling of polypeptides are familiar and routine techniques in the art. [318] As one of skill in the art will appreciate, polypeptides of the present invention of the present invention and the epitope-bearing fragments thereof described above can be combined with heterologous polypeptide sequences. For example, the polypeptides of the present invention may be fused with heterologous polypeptide sequences, for example, the polypeptides of the present invention may be fused with the constant domain of immunoglobulins (IgA, IgE, IgG, IgM) or portions thereof (CHI, CH2, CH3, and any combination thereof, including both entire domains and portions thereof), resulting in chimeric polypeptides. These fusion proteins facilitate purification and show an increased half-life in vivo. One reported example describes chimeric proteins consisting ofthe first two domains of the human CD4-polypeptide and various domains of the constant regions of the heavy or light chains of mammalian immunoglobulins. (EP A 394,827; Traunecker et al., Nature 331:84-86 (1988)). Fusion proteins having disulfide-linked dimeric structures (due to the IgG) can also be more efficient in binding and neutralizing other molecules, than the monomeric protein or protein fragment alone. (Fountoulakis et al., J. Biochem. 270:3958- 3964 (1995)). Vectors, Host Cells, and Protein Production [319] The present invention also relates to vectors containing the polynucleotide of the present invention, host cells, and the production of polypeptides by recombinant techniques. The vector may be, for example, a phage, plasmid, viral, or retroviral vector. Retroviral vectors may be replication competent or replication defective. In the latter case, viral propagation generally will occur only in complementing host cells. [320] The polynucleotides of the invention may be joined to a vector containing a selectable marker for propagation in a host. Generally, a plasmid vector is introduced in a precipitate, such as a calcium phosphate precipitate, or in a complex with a charged lipid. If the vector is a virus, it may be packaged in vitro using an appropriate packaging cell line and then transduced into host cells. [321] The polynucleotide insert should be operatively linked to an appropriate promoter, such as the phage lambda PL promoter, the E. coli lac, tip, phoA and tac promoters, the S V40 early and late promoters and promoters of retroviral LTRs, to name a few. Other suitable promoters will be known to the skilled artisan. The expression constructs will further contain sites for transcription initiation, termination, and, in the transcribed region, a ribosome binding site for translation. The coding portion ofthe transcripts expressed by the constructs will preferably include a translation initiating codon at the beginning and a termination codon (UAA, UGA or UAG) appropriately positioned at the end ofthe polypeptide to be translated. [322] As indicated, the expression vectors will preferably include at least one selectable marker. Such markers include dihydrofolate reductase, G418 or neomycin resistance for eukaryotic cell culture and tetracycline, kanamycin or ampicillin resistance genes for culturing in E. coli and other bacteria. Representative examples of appropriate hosts include, but are not limited to, bacterial cells, such as E. coli, Streptomyces and Salmonella typhimurium cells; fungal cells, such as yeast cells (e.g., Saccharomyces cerevisiae or Pichia pastoris (ATCC Accession No. 201178)); insect cells such as Drosophila S2 and Spodoptera Sf9 cells; animal cells such as CHO, COS, 293, and Bowes melanoma cells; and plant cells. Appropriate culture mediums and conditions for the above-described host cells are known in the art. [323] Among vectors preferred for use in bacteria include pQE70, pQE60 and pQE-9, available from QIAGEN, Inc.; pBluescript vectors, Phagescript vectors, pNHSA, pNH16a, pNH18A, ρNH46A, available from Stratagene Cloning Systems, Inc.; and ptrc99a, pKK223- 3, pKK233-3, pDR540, pRIT5 available from Pharmacia Biotech, Inc. Among preferred eukaryotic vectors are pWLNEO, pSV2CAT, pOG44, pXTl and pSG available from Stratagene; and pSVK3, pBPV, pMSG and pSVL available from Pharmacia. Preferred expression vectors for use in yeast systems include, but are not limited to pYES2, pYDl, pTEFl/Zeo, pYES2/GS, pPICZ, pGAPZ, pGAPZalph, pPIC9, pPIC3.5, pHJL-D2, pHIL-Sl, ρPIC3.5K, pPIC9K, and PAO815 (all available from Invitrogen, Carlbad, CA). Other suitable vectors will be readily apparent to the skilled artisan. [324] Introduction of the construct into the host cell can be effected by calcium phosphate transfection, DEAE-dextran mediated transfection, cationic lipid-mediated transfection, electroporation, transduction, infection, or other methods. Such methods are described in many standard laboratory manuals, such as Davis et al., Basic Methods In Molecular Biology (1986). It is specifically contemplated that the polypeptides ofthe present invention may in fact be expressed by a host cell lacking a recombinant vector. [325] A polypeptide of this invention can be recovered and purified from recombinant cell cultures by well-known methods including ammonium sulfate or ethanol precipitation, acid extraction, anion or cation exchange chromatography, phosphocellulose chromatography, hydrophobic interaction chromatography, affinity chromatography, hydroxylapatite chromatography and lectin chromatography. Most preferably, high performance liquid chromatography ("HPLC") is employed for purification. [326] Polypeptides of the present invention can also be recovered from: products purified from natural sources, including bodily fluids, tissues and cells, whether directly isolated or cultured; products of chemical synthetic procedures; and products produced by recombinant techniques from a prokaryotic or eukaryotic host, including, for example, bacterial, yeast, higher plant, insect, and mammalian cells. Depending upon the host employed in a recombinant production procedure, the polypeptides of the present invention may be glycosylated or may be non-glycosylated. In addition, polypeptides of the invention may also include an initial modified methionine residue, in some cases as a result of host- mediated processes. Thus, it is well known in the art that the N-terminal methionine encoded by the translation initiation codon generally is removed with high efficiency from any protein after translation in all eukaryotic cells. While the N-terminal methionine on most proteins also is efficiently removed in most prokaryotes, for some proteins, this prokaryotic removal process is inefficient, depending on the nature of the amino acid to which the N-terminal methionine is covalently linked. [327] In one embodiment, the yeast Pichia pastoris is used to express polypeptides ofthe invention in a eukaryotic system. Pichia pastoris is a methylotrophic yeast which can metabolize methanol as its sole carbon source. A main step in the methanol metabolization pathway is the oxidation of methanol to formaldehyde using O 2 . This reaction is catalyzed by the enzyme alcohol oxidase. In order to metabolize methanol as its sole carbon source, Pichia pastoris must generate high levels of alcohol oxidase due, in part, to the relatively low affinity of alcohol oxidase for O 2 . Consequently, in a growth medium depending on methanol as a main carbon source, the promoter region of one of the two alcohol oxidase genes (AOX1) is highly active, hi the presence of methanol, alcohol oxidase produced from the AOX1 gene comprises up to approximately 30% of the total soluble protein in Pichia pastoris. See, Ellis, S.B., et al, Mol. Cell. Biol 5:1111-21 (1985); Koutz, P.J, et al, Yeast 5:161-11 (1989); Tschopp, J.F., et al, Nucl Acids Res. 15:3859-76 (1987). Thus, a heterologous coding sequence, such as, for example, a polynucleotide of the present invention, under the transcriptional regulation of all or part of the AOX1 regulatory sequence is expressed at exceptionally high levels in Pichia yeast grown in the presence of methanol. [328] In one example, the plasmid vector pPIC9K is used to express DNA encoding a polypeptide of the invention, as set forth herein, in a Pichea yeast system essentially as described in "Pichia Protocols: Methods in Molecular Biology," D.R. Higgins and J. Cregg, eds. The Humana Press, Totowa, NJ, 1998. This expression vector allows expression and secretion of a polypeptide of the invention by virtue of the strong AOX1 promoter linked to the Pichia pastoris alkaline phosphatase (PHO) secretory signal peptide (i.e., leader) located upstream of a multiple cloning site. [329] Many other yeast vectors could be used in place of pPIC9K, such as, pYES2, pYDl, pTEFl/Zeo, pYES2/GS, pPICZ, pGAPZ, pGAPZalpha, pPIC9, pPIC3.5, pHIL-D2, pHE -Sl, pPIC3.5K, and PAO815, as one skilled in the art would readily appreciate, as long as the proposed expression construct provides appropriately located signals for transcription, translation, secretion (if desired), and the like, including an in-frame AUG as required. [330] In another embodiment, high-level expression of a heterologous coding sequence, such as, for example, a polynucleotide of the present invention, may be achieved by cloning the heterologous polynucleotide of the invention into an expression vector such as, for example, pGAPZ or pGAPZalpha, and growing the yeast culture in the absence of methanol. [331] In addition to encompassing host cells containing the vector constructs discussed herein, the invention also encompasses primary, secondary, and immortalized host cells of vertebrate origin, particularly mammalian origin, that have been engineered to delete or replace endogenous genetic material (e.g., coding sequence), and/or to include genetic material (e.g., heterologous polynucleotide sequences) that is operably associated with polynucleotides of the invention, and which activates, alters, and/or amplifies endogenous polynucleotides. For example, techniques known in the art may be used to operably associate heterologous control regions (e.g., promoter and/or enhancer) and endogenous polynucleotide sequences via homologous recombination (see, e.g., U.S. Patent No. 5,641,670, issued June 24, 1997; International Publication No. WO 96/29411, published September 26, 1996; International Publication No. WO 94/12650, published August 4, 1994; KoUer et al., Proc. Natl. Acad. Sci. USA 86:8932-8935 (1989); and Zijlsfra et al., Nature 342:435-438 (1989), the disclosures of each of which are incorporated by reference in their entireties). [332] hi addition, polypeptides of the invention can be chemically synthesized using techniques known in the art (e.g., see Creighton, 1983, Proteins: Structures and Molecular Principles, W.H. Freeman & Co., N.Y., and Hunkapiller et al., Nature, 310:105-111 (1984)). For example, a polypeptide corresponding to a fragment of a polypeptide can be synthesized by use of a peptide synthesizer. Furthermore, if desired, nonclassical amino acids or chemical amino acid analogs can be introduced as a substitution or addition into the polypeptide sequence. Non-classical amino acids include, but are not limited to, to the D- isomers of the common amino acids, 2,4-diaminobutyric acid, a-amino isobutyric acid, 4- aminobutyric acid, Abu, 2-amino butyric acid, g-Abu, e-Ahx, 6-amino hexanoic acid, Aib, 2-amino isobutyric acid, 3 -amino propionic acid, ornithine, norleucine, norvaline, hydroxyproline, sarcosine, citrulline, homocitrulline, cysteic acid, t-butylglycine, t- butylalanine, phenylglycine, cyclohexylalanine, b-alanine, fluoro-amino acids, designer amino acids such as b-methyl amino acids, Ca-methyl amino acids, Na-methyl amino acids, and amino acid analogs in general. Furthermore, the amino acid can be D (dextrorotary) or L (levorotary). [333] The invention encompasses polypeptides of the present invention which are differentially modified during or after translation, e.g., by glycosylation, acetylation, phosphorylation, amidation, derivatization by known protecting/blocking groups, proteolytic cleavage, linkage to an antibody molecule or other cellular ligand, etc. Any of numerous chemical modifications may be carried out by known techniques, including but not limited, to specific chemical cleavage by cyanogen bromide, trypsin, chymotrypsin, papain, V8 protease, NaBH 4 ; acetylation, formylation, oxidation, reduction; metabolic synthesis in the presence of tunicamycin; etc. [334] Additional post-translational modifications encompassed by the invention include, for example, e.g., N-linked or O-linked carbohydrate chains, processing of N-terminal or C-terminal ends), attachment of chemical moieties to the amino acid backbone, chemical modifications of N-linked or O-linked carbohydrate chains, and addition or deletion of an N-terminal methionine residue as a result of procaryotic host cell expression. The polypeptides may also be modified with a detectable label, such as an enzymatic, fluorescent, isotopic or affinity label to allow for detection and isolation ofthe protein. [335] Also provided by the invention are chemically modified derivatives of the polypeptides of the invention which may provide additional advantages such as increased solubility, stability and circulating time of the polypeptide, or decreased immunogenicity (see U.S. Patent No. 4,179,337). The chemical moieties for derivitization may be selected from water soluble polymers such as polyethylene glycol, ethylene glycol/propylene glycol copolymers, carboxymethylcellulose, dextran, polyvinyl alcohol and the like. The polypeptides may be modified at random positions within the molecule, or at predetermined positions within the molecule and may include one, two, three or more attached chemical moieties. [336] The polymer may be of any molecular weight, and may be branched or unbranched. For polyethylene glycol, the preferred molecular weight is between about 1 kDa and about 100 kDa (the term "about" indicating that in preparations of polyethylene glycol, some molecules will weigh more, some less, than the stated molecular weight) for ease in handling and manufacturing. Other sizes may be used, depending on the desired therapeutic profile (e.g., the duration of sustained release desired, the effects, if any on biological activity, the ease in handling, the degree or lack of antigenicity and other known effects ofthe polyethylene glycol to a therapeutic protein or analog). [337] The polyethylene glycol molecules (or other chemical moieties) should be attached to the protein with consideration of effects on functional or antigenic domains ofthe protein. There are a number of attachment methods available to those skilled in the art, e.g., EP 0 401 384, herein incorporated by reference (coupling PEG to G-CSF), see also Malik et al., Exp. Hematol. 20:1028-1035 (1992) (reporting pegylation of GM-CSF using tresyl chloride). For example, polyethylene glycol may be covalently bound through amino acid residues via a reactive group, such as, a free amino or carboxyl group. Reactive groups are those to which an activated polyethylene glycol molecule may be bound. The amino acid residues having a free amino group may include lysine residues and the N-terminal amino acid residues; those having a free carboxyl group may include aspartic acid residues glutamic acid residues and the C-terminal amino acid residue. Sulfhydryl groups may also be used as a reactive group for attaching the polyethylene glycol molecules. Preferred for therapeutic purposes is attachment at an amino group, such as attachment at the N-terminus or lysine group. [338] One may specifically desire proteins chemically modified at the N-terminus. Using polyethylene glycol as an illustration of the present composition, one may select from a variety of polyethylene glycol molecules (by molecular weight, branching, etc.), the proportion of polyethylene glycol molecules to protein (polypeptide) molecules in the reaction mix, the type of pegylation reaction to be performed, and the method of obtaining the selected N-terminally pegylated protein. The method of obtaining the N-terminally pegylated preparation (i.e., separating this moiety from other monopegylated moieties if necessary) may be by purification of the N-terminally pegylated material from a population of pegylated protein molecules. Selective proteins chemically modified at the N-terminus modification may be accomplished by reductive alkylation which exploits differential reactivity of different types of primary amino groups (lysine versus the N-terminal) available for derivatization in a particular protein. Under the appropriate reaction conditions, substantially selective derivatization of the protein at the N-terminus with a carbonyl group containing polymer is achieved. [339] The polypeptides of the invention may be in monomers or multimers (i.e., dimers, trimers, tetramers and higher multimers). Accordingly, the present invention relates to monomers and multimers of the polypeptides of the invention, their preparation, and compositions (preferably, Therapeutics) containing them. In specific embodiments, the polypeptides of the invention are monomers, dimers, trimers or tetramers. In additional embodiments, the multimers of the invention are at least dimers, at least trimers, or at least tetramers. [340] Multimers encompassed by the invention may be homomers or heteromers. As used herein, the term homomer, refers to a multimer containing only polypeptides corresponding to the amino acid sequence of SEQ DD NO:Y or an amino acid sequence encoded by SEQ DD NO:X or the complement of SEQ DD NO:X, and/or an amino acid sequence encoded by cDNA PlasmidN (including fragments, variants, splice variants, and fusion proteins, corresponding to these as described herein). These homomers may contain polypeptides having identical or different amino acid sequences. In a specific embodiment, a homomer of the invention is a multimer containing only polypeptides having an identical amino acid sequence. In another specific embodiment, a homomer of the invention is a multimer containing polypeptides having different amino acid sequences. In specific embodiments, the multimer of the invention is a homodimer (e.g., containing polypeptides having identical or different amino acid sequences) or a homotrimer (e.g., containing polypeptides having identical and/or different amino acid sequences). In additional embodiments, the homomeric multimer of the invention is at least a homodimer, at least a homotrimer, or at least a homotetramer. [341] As used herein, the term heteromer refers to a multimer containing one or more heterologous polypeptides (i.e., polypeptides of different proteins) in addition to the polypeptides of the invention. In a specific embodiment, the multimer of the invention is a heterodimer, a heterotrimer, or a heterotetramer. In additional embodiments, the heteromeric multimer of the invention is at least a heterodimer, at least a heterotrimer, or at least a heterotetramer. [342] Multimers of the invention may be the result of hydrophobic, hydrophilic, ionic and/or covalent associations and/or may be indirectly linked, by for example, liposome formation. Thus, in one embodiment, multimers of the invention, such as, for example, homodimers or homotrimers, are formed when polypeptides of the invention contact one another in solution. In another embodiment, heteromultimers of the invention, such as, for example, heterotrimers or heterotetramers, are formed when polypeptides of the invention contact antibodies to the polypeptides of the invention (including antibodies to the heterologous polypeptide sequence in a fusion protein of the invention) in solution. In other embodiments, multimers of the invention are formed by covalent associations with and/or between the polypeptides of the invention. Such covalent associations may involve one or more amino acid residues contained in the polypeptide sequence (e.g., that recited in SEQ DD NO:Y, or contained in a polypeptide encoded by SEQ DD NO:X, and/or the cDNA plasmidN). In one instance, the covalent associations are cross-linking between cysteine residues located within the polypeptide sequences which interact in the native (i.e., naturally occurring) polypeptide. In another instance, the covalent associations are the consequence of chemical or recombinant manipulation. Alternatively, such covalent associations may involve one or more amino acid residues contained in the heterologous polypeptide sequence in a fusion protein. In one example, covalent associations are between the heterologous sequence contained in a fusion protein of the invention (see, e.g., US Patent Number 5,478,925). In a specific example, the covalent associations are between the heterologous sequence contained in a Fc fusion protein of the invention (as described herein). In another specific example, covalent associations of fusion proteins of the invention are between heterologous polypeptide sequence from another protein that is capable of forming covalently associated multimers, such as for example, osteoprotegerin (see, e.g., International Publication NO: WO 98/49305, the contents of which are herein incorporated by reference in its entirety). In another embodiment, two or more polypeptides of the invention are joined through peptide linkers. Examples include those peptide linkers described in U.S. Pat. No. 5,073,627 (hereby incorporated by reference). Proteins comprising multiple polypeptides of the invention separated by peptide linkers may be produced using conventional recombinant DNA technology. [343] Another method for preparing multimer polypeptides ofthe invention involves use of polypeptides of the invention fused to a leucine zipper or isoleucine zipper polypeptide sequence. Leucine zipper and isoleucine zipper domains are polypeptides that promote multimerization of the proteins in which they are found. Leucine zippers were originally identified in several DNA-binding proteins (Landschulz et al., Science 240:1759, (1988)), and have since been found in a variety of different proteins. Among the known leucine zippers are naturally occurring peptides and derivatives thereof that dimerize or trimerize. Examples of leucine zipper domains suitable for producing soluble multimeric proteins ofthe invention are those described in PCT application WO 94/10308, hereby incorporated by reference. Recombinant fusion proteins comprising a polypeptide of the invention fused to a polypeptide sequence that dimerizes or trimerizes in solution are expressed in suitable host cells, and the resulting soluble multimeric fusion protein is recovered from the culture supernatant using techniques known in the art. [344] Trimeric polypeptides of the invention may offer the advantage of enhanced biological activity. Preferred leucine zipper moieties and isoleucine moieties are those that preferentially form trimers. One example is a leucine zipper derived from lung surfactant protein D (SPD), as described in Hoppe et al. (FEBS Letters 344:191, (1994)) and in U.S. patent application Ser. No. 08/446,922, hereby incorporated by reference. Other peptides derived from naturally occurring trimeric proteins may be employed in preparing trimeric polypeptides ofthe invention. [345] hi another example, proteins of the invention are associated by interactions between Flag® polypeptide sequence contained in fusion proteins ofthe invention containing Flag® polypeptide seuqence. In a further embodiment, associations proteins ofthe invention are associated by interactions between heterologous polypeptide sequence contained in Flag® fusion proteins ofthe invention and anti-Flag® antibody. [346] The multimers of the invention may be generated using chemical techniques known in the art. For example, polypeptides desired to be contained in the multimers of the invention may be chemically cross-linked using linker molecules and linker molecule length optimization techniques known in the art (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). Additionally, multimers of the invention may be generated using techniques known in the art to form one or more inter-molecule cross-links between the cysteine residues located within the sequence of the polypeptides desired to be contained in the multimer (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). Further, polypeptides of the invention may be routinely modified by the addition of cysteine or biotin to the C-terminus or N-terminus of the polypeptide and techniques known in the art may be applied to generate multimers containing one or more of these modified polypeptides (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). Additionally, techniques known in the art may be applied to generate liposomes containing the polypeptide components desired to be contained in the multimer of the invention (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). [347] Alternatively, multimers of the invention may be generated using genetic engineering techniques known in the art. In one embodiment, polypeptides contained in multimers of the invention are produced recombinantly using fusion protein technology described herein or otherwise known in the art (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). In a specific embodiment, polynucleotides coding for a homodimer of the invention are generated by ligating a polynucleotide sequence encoding a polypeptide of the invention to a sequence encoding a linker polypeptide and then further to a synthetic polynucleotide encoding the translated product of the polypeptide in the reverse orientation from the original C-terminus to the N- terminus (lacking the leader sequence) (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). In another embodiment, recombinant techniques described herein or otherwise known in the art are applied to generate recombinant polypeptides of the invention which contain a transmembrane domain (or hyrophobic or signal peptide) and which can be incorporated by membrane reconstitution techniques into liposomes (see, e.g., US Patent Number 5,478,925, which is herein incorporated by reference in its entirety). Antibodies [348] Further polypeptides of the invention relate to antibodies and T-cell antigen receptors (TCR) which immunospecifically bind a polypeptide, polypeptide fragment, or variant of SEQ ED NO:Y, and/or an epitope, of the present invention (as determined by immunoassays well known in the art for assaying specific antibody-antigen binding). Antibodies of the invention include, but are not limited to, polyclonal, monoclonal, multispecific, human, humanized or chimeric antibodies, single chain antibodies, Fab fragments, F(ab') fragments, fragments produced by a Fab expression library, anti-idiotypic (anti-Id) antibodies (including, e.g., anti-Id antibodies to antibodies of the invention), and epitope-binding fragments of any ofthe above. The term "antibody," as used herein, refers to immunoglobulin molecules and immunologically active portions of immunoglobulin molecules, i.e., molecules that contain an antigen binding site that immunospecifically binds an antigen. The immunoglobulin molecules of the invention can be of any type (e.g., IgG, IgE, IgM, IgD, IgA and IgY), class (e.g., IgGl, IgG2, IgG3, IgG4, IgAl and IgA2) or subclass of immunoglobulin molecule. [349] Most preferably the antibodies are human antigen-binding antibody fragments of the present invention and include, but are not limited to, Fab, Fab' and F(ab')2, Fd, single- chain Fvs (scFv), single-chain antibodies, disulfide-linked Fvs (sdFv) and fragments comprising either a NL or VH domain. Antigen-binding antibody fragments, including single-chain antibodies, may comprise the variable region(s) alone or in combination with the entirety or a portion of the following: hinge region, CHI, CH2, and CH3 domains. Also included in the invention are antigen-binding fragments also comprising any combination of variable region(s) with a hinge region, CHI, CH2, and CH3 domains. The antibodies of the invention may be from any animal origin including birds and mammals. Preferably, the antibodies are human, murine (e.g., mouse and rat), donkey, ship rabbit, goat, guinea pig, camel, horse, or chicken. As used herein, "human" antibodies include antibodies having the amino acid sequence of a human immunoglobulin and include antibodies isolated from human immunoglobulin libraries or from animals transgenic for one or more human immunoglobulin and that do not express endogenous immunoglobulins, as described infra and, for example in, U.S. Patent No. 5,939,598 by Kucherlapati et al. [350] The antibodies ofthe present invention may be monospecific, bispecific, trispecific or of greater multispecificity. Multispecific antibodies may be specific for different epitopes of a polypeptide of the present invention or may be specific for both a polypeptide of the present invention as well as for a heterologous epitope, such as a heterologous polypeptide or solid support material. See, e.g., PCT publications WO 93/17715; WO 92/08802; WO 91/00360; WO 92/05793; Tutt, et al., J. Immunol. 147:60-69 (1991); U.S. Patent Nos. 4,474,893; 4,714,681; 4,925,648; 5,573,920; 5,601,819; Kostelny et al., J. Immunol. 148:1547-1553 (1992). [351] Antibodies of the present invention may be described or specified in terms of the epitope(s) or portion(s) of a polypeptide of the present invention which they recognize or specifically bind. The epitope(s) or polypeptide portion(s) may be specified as described herein, e.g., by N-terminal and C-terminal positions, or by size in contiguous amino acid residues. Antibodies which specifically bind any epitope or polypeptide of the present invention may also be excluded. Therefore, the present invention includes antibodies that specifically bind polypeptides of the present invention, and allows for the exclusion of the same. [352] Antibodies of the present invention' may also be described or specified in terms of their cross-reactivity. Antibodies that do not bind any other analog, ortholog, or homolog of a polypeptide ofthe present invention are included. Antibodies that bind polypeptides with at least 95%, at least 90%, at least 85%, at least 80%, at least 75%, at least 70%, at least 65%, at least 60%, at least 55%, and at least 50% identity (as calculated using methods known in the art and described herein) to a polypeptide of the present invention are also included in the present invention. In specific embodiments, antibodies of the present invention cross-react with murine, rat and/or rabbit homologs of human proteins and the corresponding epitopes thereof. Antibodies that do not bind polypeptides with less than 95%, less than 90%, less than 85%o, less than 80%, less than 75%>, less than 70%, less than 65%>, less than 60%, less than 55%), and less than 50% identity (as calculated using methods known in the art and described herein) to a polypeptide of the present invention are also included in the present invention. In a specific embodiment, the above-described cross-reactivity is with respect to any single specific antigenic or immunogenic polypeptide, or combination(s) of 2, 3, 4, 5, or more ofthe specific antigenic and/or immunogenic polypeptides disclosed herein. Further included in the present invention are antibodies which bind polypeptides encoded by polynucleotides which hybridize to a polynucleotide of the present invention under stringent hybridization conditions (as described herein). Antibodies of the present invention may also be described or specified in terms of their binding affinity to a polypeptide of the invention. Preferred binding affinities include those with a dissociation constant or Kd less than 5 X 10 "2 M, 10 "2 M, 5 X 10 "3 M, 10 -3 M, 5 X 10 "4 M, 10 "4 M, 5 X 10 "5 M, 10 "5 M, 5 X 10 "6 M, 10 "6 M, 5 X 10 "7 M, 10 "7 M, 5 X 10 "8 M, 10 "8 M, 5 X 10 "9 M, 10 "9 M, 5 X 10 ~10 M, 10 "10 M, 5 X 10 -11 M, 10 "11 M, 5 X lO -12 M, 10 "12 M, 5 X 10 "13 M, 10 "13 M, 5 X 10 '14 M, 10 '14 M, 5 X 10 "15 M, or 10 '15 M. [353] The invention also provides antibodies that competitively inhibit binding of an antibody to an epitope of the invention as determined by any method known in the art for determining competitive binding, for example, the immunoassays described herein. In preferred embodiments, the antibody competitively inhibits binding to the epitope by at least 95%, at least 90%, at least 85 %, at least 80%, at least 75%, at least 70%, at least 60%, or at least 50%. [354] Antibodies of the present invention may act as agonists or antagonists of the polypeptides ofthe present invention. For example, the present invention includes antibodies which disrupt the receptor/ligand interactions with the polypeptides of the invention either partially or fully. Preferrably, antibodies of the present invention bind an antigenic epitope disclosed herein, or a portion thereof. The invention features both receptor-specific antibodies and ligand-specific antibodies. The invention also features receptor-specific antibodies wliich do not prevent ligand binding but prevent receptor activation. Receptor activation (i.e., signaling) may be determined by techniques described herein or otherwise known in the art. For example, receptor activation can be determined by detecting the phosphorylation (e.g., tyrosine or serine/threonine) of the receptor or its substrate by immunoprecipitation followed by western blot analysis (for example, as described supra). In specific embodiments, antibodies are provided that inhibit ligand activity or receptor activity by at least 95%, at least 90%, at least 85%, at least 80%, at least 75%, at least 70%, at least 60%, or at least 50% ofthe activity in absence ofthe antibody. [355] The invention also features receptor-specific antibodies which both prevent ligand binding and receptor activation as well as antibodies that recognize the receptor-ligand complex, and, preferably, do not specifically recognize the unbound receptor or the unbound ligand. Likewise, included in the invention are neutralizing antibodies which bind the ligand and prevent binding ofthe ligand to the receptor, as well as antibodies wliich bind the ligand, thereby preventing receptor activation, but do not prevent the ligand from binding the receptor. Further included in the invention are antibodies which activate the receptor. These antibodies may act as receptor agonists, i.e., potentiate or activate either all or a subset ofthe biological activities of the ligand-mediated receptor activation, for example, by inducing dimerization of the receptor. The antibodies may be specified as agonists, antagonists or inverse agonists for biological activities comprising the specific biological activities of the peptides of the invention disclosed herein. The above antibody agonists can be made using methods known in the art. See, e.g., PCT publication WO 96/40281; U.S. Patent No. 5,811,097; Deng et al., Blood 92(6)3981-1988 (1998); Chen et, al, Cancer Res. 58(16):3668-3678 (1998); Harrop et al., J. Immunol. 161(4)3786-1794 (1998); Zhu et al., Cancer Res. 58(15):3209-3214 (1998); Yoon et al., J. Immunol. 160(7):3170-3179 (1998); Prat et al., J. Cell. Sci. ll l(Pt2):237-247 (1998); Pitard et al., J. Immunol. Methods 205(2)377-190 (1997); Liautard et al., Cytokine 9(4):233-241 (1997); Carlson et al., J. Biol. Chem. 272(17)31295-11301 (1997); Taryman et al., Neuron 14(4):755-762 (1995); Muller et al., Structure 6(9)3153-1167 (1998); Bartunek et al., Cytokine 8(1)34-20 (1996) (which are all incorporated by reference herein in their entireties). [356] Antibodies ofthe present invention may be used, for example, but not limited to, to purify, detect, and target the polypeptides ofthe present invention, including both in vitro and in vivo diagnostic and therapeutic methods. For example, the antibodies have use in immunoassays for qualitatively and quantitatively measuring levels ofthe polypeptides ofthe present invention in biological samples. See, e.g., Harlow et al., Antibodies: A Laboratory Manual, (Cold Spring Harbor Laboratory Press, 2nd ed. 1988) (incorporated by reference herein in its entirety). [357] As discussed in more detail below, the antibodies of the present invention may be used either alone or in combination with other compositions. The antibodies may further be recombinantly fused to a heterologous polypeptide at the N- or C-terminus or chemically conjugated (including covalently and non-covalently conjugations) to polypeptides or other compositions. For example, antibodies of the present invention may be recombinantly fused or conjugated to molecules useful as labels in detection assays and effector molecules such as heterologous polypeptides, drugs, radionuclides, or toxins. See, e.g., PCT publications WO 92/08495; WO 91/14438; WO 89/12624; U.S. Patent No. 5,314,995; and EP 396,387. [358] The antibodies of the invention include derivatives that are modified, i.e, by the covalent attachment of any type of molecule to the antibody such that covalent attachment does not prevent the antibody from generating an anti-idiotypic response. For example, but not by way of limitation, the antibody derivatives include antibodies that have been modified, e.g., by glycosylation, acetylation, pegylation, phosphylation, amidation, derivatization by known protecting/blocking groups, proteolytic cleavage, linkage to a cellular ligand or other protein, etc. Any of numerous chemical modifications may be carried out by known techniques, including, but not limited to specific chemical cleavage, acetylation, formylation, metabolic synthesis of tunicamycin, etc. Additionally, the derivative may contain one or more non-classical amino acids. [359] The antibodies of the present invention may be generated by any suitable method known in the art. Polyclonal antibodies to an antigen-of- interest can be produced by various procedures well known in the art. For example, a polypeptide of the invention can be administered to various host animals including, but not limited to, rabbits, mice, rats, etc. to induce the production of sera containing polyclonal antibodies specific for the antigen. Various adjuvants may be used to increase the immunological response, depending on the host species, and include but are not limited to, Freund's (complete and incomplete), mineral gels such as aluminum hydroxide, surface active substances such as lysolecithin, pluronic polyols, polyanions, peptides, oil emulsions, keyhole limpet hemocyanins, dinitrophenol, and potentially useful human adjuvants such as BCG (bacille Calmette-Guerin) and corynebacterium parvuni. Such adjuvants are also well known in the art. [360] Monoclonal antibodies can be prepared using a wide variety of techniques known in the art including the use of hybridoma, recombinant, and phage display technologies, or a combination thereof. For example, monoclonal antibodies can be produced using hybridoma techniques including those known in the art and taught, for example, in Harlow et al., Antibodies: A Laboratory Manual, (Cold Spring Harbor Laboratory Press, 2nd ed. 1988); Hammerling, et al., in: Monoclonal Antibodies and T-Cell Hybridomas 563-681 (Elsevier, N.Y., 1981) (said references incorporated by reference in their entireties). The term "monoclonal antibody" as used herein is not limited to antibodies produced through hybridoma technology. The term "monoclonal antibody" refers to an antibody that is derived from a single clone, including any eukaryotic, prokaryotic, or phage clone, and not the method by which it is produced. [361] Methods for producing and screening for specific antibodies using hybridoma technology are routine and well known in the art and are discussed in detail in the Examples. In a non-limiting example, mice can be immunized with a polypeptide of the invention or a cell expressing such peptide. Once an immune response is detected, e.g., antibodies specific for the antigen are detected in the mouse serum, the mouse spleen is harvested and splenocytes isolated. The splenocytes are then fused by well known techniques to any suitable myeloma cells, for example cells from cell line SP20 available from the ATCC. Hybridomas are selected and cloned by limited dilution. The hybridoma clones are then assayed by methods known in the art for cells that secrete antibodies capable of binding a polypeptide of the invention. Ascites fluid, which generally contains high levels of antibodies, can be generated by immunizing mice with positive hybridoma clones. [362] Accordingly, the present invention provides methods of generating monoclonal antibodies as well as antibodies produced by the method comprising culturing a hybridoma cell secreting an antibody ofthe invention wherein, preferably, the hybridoma is generated by fusing splenocytes isolated from a mouse immunized with an antigen of the invention with myeloma cells and then screening the hybridomas resulting from the fusion for hybridoma clones that secrete an antibody able to bind a polypeptide ofthe invention. [363] Antibody fragments wliich recognize specific epitopes may be generated by known techniques. For example, Fab and F(ab')2 fragments of the invention may be produced by proteolytic cleavage of immunoglobulin molecules, using enzymes such as papain (to produce Fab fragments) or pepsin (to produce F(ab')2 fragments). F(ab')2 fragments contain the variable region, the light chain constant region and the CHI domain ofthe heavy chain. [364] For example, the antibodies of the present invention can also be generated using various phage display methods known in the art. In phage display methods, functional antibody domains are displayed on the surface of phage particles which carry the polynucleotide sequences encoding them. In a particular embodiment, such phage can be utilized to display antigen binding domains expressed from a repertoire or combinatorial antibody library (e.g., human or murine). Phage expressing an antigen binding domain that binds the antigen of interest can be selected or identified with antigen, e.g., using labeled antigen or antigen bound or captured to a solid surface or bead. Phage used in these methods are typically filamentous phage including fd and Ml 3 binding domains expressed from phage with Fab, Fv or disulfide stabilized Fv antibody domains recombinantly fused to either the phage gene DI or gene VDI protein. Examples of phage display methods that can be used to make the antibodies of the present invention include those disclosed in Brinkman et al., J. Immunol. Methods 182:41-50 (1995); Ames et al., J. Immunol. Methods 184:177-186 (1995); Kettleborough et al., Eur. J. Immunol. 24:952-958 (1994); Persic et al., Gene 187 9- 18 (1997); Burton et al., Advances in Immunology 57:191-280 (1994); PCT application No. PCT/GB91/01134; PCT publications WO 90/02809; WO 91/10737; WO 92/01047; WO 92/18619; WO 93/11236; WO 95/15982; WO 95/20401; and U.S. Patent Nos. 5,698,426; 5,223,409; 5,403,484; 5,580,717; 5,427,908; 5,750,753; 5,821,047; 5,571,698; 5,427,908; 5,516,637; 5,780,225; 5,658,727; 5,733,743 and 5,969,108; each of which is incorporated herein by reference in its entirety. [365] As described in the above references, after phage selection, the antibody coding regions from the phage can be isolated and used to generate whole antibodies, including human antibodies, or any other desired antigen binding fragment, and expressed in any desired host, including mammalian cells, insect cells, plant cells, yeast, and bacteria, e.g., as described in detail below. For example, techniques to recombinantly produce Fab, Fab' and F(ab')2 fragments can also be employed using methods known in the art such as those disclosed in PCT publication WO 92/22324; Mullinax et al., BioTechniques 12(6):864-869 (1992); and Sawai et al, AJRI 34:26-34 (1995); and Better et al., Science 2403041-1043 (1988) (said references incorporated by reference in their entireties). [366] Examples of techniques which can be used to produce single-chain Fvs and antibodies include those described in U.S. Patents 4,946,778 and 5,258,498; Huston et al., Methods in Enzymology 203:46-88 (1991); Shu et al., PNAS 90:7995-7999 (1993); and Skerra et al., Science 2403038-1040 (1988). For some uses, including in vivo use of antibodies in humans and in vitro detection assays, it may be preferable to use chimeric, humanized, or human antibodies. A chimeric antibody is a molecule in which different portions ofthe antibody are derived from different animal species, such as antibodies having a variable region derived from a murine monoclonal antibody and a human immunoglobulin constant region. Methods for producing chimeric antibodies are known in the art. See e.g., Morrison, Science 2293202 (1985); Oi et al., BioTechniques 4:214 (1986); Gillies et al., (1989) J. Immunol. Methods 125:191-202; U.S. Patent Nos. 5,807,715; 4,816,567; and 4,816397, which are incorporated herein by reference in their entirety. Humanized antibodies are antibody molecules from non-human species antibody that binds the desired antigen having one or more complementarity determining regions (CDRs) from the non- human species and a framework regions from a human immunoglobulin molecule. Often, framework residues in the human framework regions will be substituted with the corresponding residue from the CDR donor antibody to alter, preferably improve, antigen binding. These framework substitutions are identified by methods well known in the art, e.g., by modeling of the interactions of the CDR and framework residues to identify framework residues important for antigen binding and sequence comparison to identify unusual framework residues at particular positions. (See, e.g., Queen et al., U.S. Patent No. 5,585,089; Riechmann et al., Nature 332:323 (1988), which are incorporated herein by reference in their entireties.) Antibodies can be humanized using a variety of techniques known in the art including, for example, CDR-grafting (EP 239,400; PCT publication WO 91/09967; U.S. Patent Nos. 5,225,539; 5,530,101; and 5,585,089), veneering or resurfacing (EP 592,106; EP 519,596; Padlan, Molecular Immunology 28(4/5):489-498 (1991); Studnicka et al, Protein Engineering 7(6):805-814 (1994); Roguska. et al., PNAS 91:969-973 (1994)), and chain shuffling (U.S. Patent No. 5,565,332). [367] Completely human antibodies are particularly desirable for therapeutic treatment of human patients. Human antibodies can be made by a variety of methods known in the art including phage display methods described above using antibody libraries derived from human immunoglobulin sequences. See also, U.S. Patent Nos. 4,444,887 and 4,716,111; and PCT publications WO 98/46645, WO 98/50433, WO 98/24893, WO 98/16654, WO 96/34096, WO 96/33735, and WO 91/10741; each of which is incorporated herein by reference in its entirety. [368] Human antibodies can also be produced using transgenic mice which are incapable of expressing functional endogenous immunoglobulins, but which can express human immunoglobulin genes. For example, the human heavy and light chain immunoglobulin gene complexes may be introduced randomly or by homologous recombination into mouse embryonic stem cells. Alternatively, the human variable region, constant region, and diversity region may be introduced into mouse embryonic stem cells in addition to the human heavy and light chain genes. The mouse heavy and light chain immunoglobulin genes may be rendered non-functional separately or simultaneously with the introduction of human immunoglobulin loci by homologous recombination. In particular, homozygous deletion of the JH region prevents endogenous antibody production. The modified embryonic stem cells are expanded and microinjected into blastocysts to produce chimeric mice. The chimeric mice are then bred to produce homozygous offspring which express human antibodies. The transgenic mice are immunized in the normal fashion with a selected antigen, e.g., all or a portion of a polypeptide of the invention. Monoclonal antibodies directed against the antigen can be obtained from the immunized, transgenic mice using conventional hybridoma technology. The human immunoglobulin transgenes harbored by the transgenic mice rearrange during B cell differentiation, and subsequently undergo class switching and somatic mutation. Thus, using such a technique, it is possible to produce therapeutically useful IgG, IgA, IgM and IgE antibodies. For an overview of this technology for producing human antibodies, see Lonberg and Huszar, Int. Rev. Immunol. 13:65-93 (1995). For a detailed discussion of this technology for producing human antibodies and human monoclonal antibodies and protocols for producing such antibodies, see, e.g., PCT publications WO 98/24893; WO 92/01047; WO 96/34096; WO 96/33735; European Patent No. 0 598 877; U.S. Patent Nos. 5,413,923; 5,625,126; 5,633,425; 5,569,825; 5,661,016; 5,545,806; 5,814,318; 5,885,793; 5,916,771; and 5,939,598, which are incorporated by reference herein in their entirety. In addition, companies such as Abgenix, Inc. (Freemont, CA) and Genpharm (San Jose, CA) can be engaged to provide human antibodies directed against a selected antigen using technology similar to that described above. [369] Completely human antibodies which recognize a selected epitope can be generated using a technique referred to as "guided selection." In this approach a selected non-human monoclonal antibody, e.g., a mouse antibody, is used to guide the selection of a completely human antibody recognizing the same epitope. (Jespers et al., Bio/technology 12:899-903 (1988)). [370] Further, antibodies to the polypeptides of the invention can, in turn, be utilized to generate anti-idiotype antibodies that "mimic" polypeptides ofthe invention using techniques well known to those skilled in the art. (See, e.g., Greenspan & Bona, FASEB J. 7(5):437-444; (1989) and Nissinoff, J. Immunol. 147(8):2429-2438 (1991)). For example, antibodies which bind to and competitively inhibit polypeptide multimerization and/or binding of a polypeptide of the invention to a ligand can be used to generate anti-idiotypes that "mimic" the polypeptide multimerization and/or binding domain and, as a consequence, bind to and neutralize polypeptide and/or its ligand. Such neutralizing anti-idiotypes or Fab fragments of such anti-idiotypes can be used in therapeutic regimens to neutralize polypeptide ligand. For example, such anti-idiotypic antibodies can be used to bind a polypeptide of the invention and/or to bind its ligands/receptors, and thereby block its biological activity. Polynucleotides Encoding Antibodies [371] The invention further provides polynucleotides comprising a nucleotide sequence encoding an antibody of the invention and fragments thereof. The invention also encompasses polynucleotides that hybridize under stringent or alternatively, under lower stringency hybridization conditions, e.g., as defined supra, to polynucleotides that encode an antibody, preferably, that specifically binds to a polypeptide of the invention, preferably, an antibody that binds to a polypeptide having the amino acid sequence of SEQ DD NO:Y. [372] The polynucleotides may be obtained, and the nucleotide sequence of the polynucleotides determined, by any method known in the art. For example, if the nucleotide sequence of the antibody is known, a polynucleotide encoding the antibody may be assembled from chemically synthesized oligonucleotides (e.g., as described in Kutmeier et al., BioTechniques 17:242 (1994)), which, briefly, involves the synthesis of overlapping oligonucleotides containing portions of the sequence encoding the antibody, annealing and ligating of those oligonucleotides, and then amplification of the ligated oligonucleotides by PCR. [373] Alternatively, a polynucleotide encoding an antibody may be generated from nucleic acid from a suitable source. If a clone containing a nucleic acid encoding a particular antibody is not available, but the sequence ofthe antibody molecule is known, a nucleic acid encoding the immunoglobulin may be chemically synthesized or obtained from a suitable source (e.g., an antibody cDNA library, or a cDNA library generated from, or nucleic acid, preferably poly A+ RNA, isolated from, any tissue or cells expressing the antibody, such as hybridoma cells selected to express an antibody of the invention) by PCR amplification using synthetic primers hybridizable to the 3' and 5' ends ofthe sequence or by cloning using an oligonucleotide probe specific for the particular gene sequence to identify, e.g., a cDNA clone from a cDNA library that encodes the antibody. Amplified nucleic acids generated by PCR may then be cloned into replicable cloning vectors using any method well known in the art. [374] Once the nucleotide sequence and corresponding amino acid sequence of the antibody is determined, the nucleotide sequence of the antibody may be manipulated using methods well known in the art for the manipulation of nucleotide sequences, e.g., recombinant DNA techniques, site directed mutagenesis, PCR, etc. (see, for example, the techniques described in Sambrook et al., 1990, Molecular Cloning, A Laboratory Manual, 2d Ed., Cold Spring Harbor Laboratory, Cold Spring Harbor, NY and Ausubel et al., eds., 1998, Current Protocols in Molecular Biology, John Wiley & Sons, NY, which are both incorporated by reference herein in their entireties ), to generate antibodies having a different amino acid sequence, for example to create amino acid substitutions, deletions, and/or insertions. [375] In a specific embodiment, the amino acid sequence of the heavy and/or light chain variable domains may be inspected to identify the sequences of the complementarity determining regions (CDRs) by methods that are well know in the art, e.g., by comparison to known amino acid sequences of other heavy and light chain variable regions to determine the regions of sequence hypervariability. Using routine recombinant DNA techniques, one or more of the CDRs may be inserted within framework regions, e.g., into human framework regions to humanize a non-human antibody, as described supra. The framework regions may be naturally occurring or consensus framework regions, and preferably human framework regions (see, e.g., Chothia et al., J. Mol. Biol. 278: 457-479 (1998) for a listing of human framework regions). Preferably, the polynucleotide generated by the combination of the framework regions and CDRs encodes an antibody that specifically binds a polypeptide of the invention. Preferably, as discussed supra, one or more amino acid substitutions may be made within the framework regions, and, preferably, the amino acid substitutions improve binding of the antibody to its antigen. Additionally, such methods may be used to make amino acid substitutions or deletions of one or more variable region cysteine residues participating in an intrachain disulfide bond to generate antibody molecules lacking one or more intrachain disulfide bonds. Other alterations to the polynucleotide are encompassed by the present invention and within the skill ofthe art. [376] In addition, techniques developed for the production of "chimeric antibodies" (Morrison et al., Proc. Natl. Acad. Sci. 81:851-855 (1984); Neuberger et al., Nature 312:604-608 (1984); Takeda et al., Nature 314:452-454 (1985)) by splicing genes from a mouse antibody molecule of appropriate antigen specificity together with genes from a human antibody molecule of appropriate biological activity can be used. As described supra, a chimeric antibody is a molecule in which different portions are derived from different animal species, such as those having a variable region derived from a murine mAb and a human immunoglobulin constant region, e.g., humanized antibodies. [377] Alternatively, techniques described for the production of single chain antibodies (U.S. Patent No. 4,946,778; Bird, Science 242:423- 42 (1988); Huston et al, Proc. Natl. Acad. Sci. USA 85:5879-5883 (1988); and Ward et al., Nature 334:544-54 (1989)) can be adapted to produce single chain antibodies. Single chain antibodies are formed by linking the heavy and light chain fragments of the Fv region via an amino acid bridge, resulting in a single chain polypeptide. Techniques for the assembly of functional Fv fragments in E. coli may also be used (Skerra et al., Science 242:1038- 1041 (1988)). Methods of Producing Antibodies [378] The antibodies of the invention can be produced by any method known in the art for the synthesis of antibodies, in particular, by chemical synthesis or preferably, by recombinant expression techniques. [379] Recombinant expression of an antibody ofthe invention, or fragment, derivative or analog thereof, (e.g., a heavy or light chain of an antibody of the invention or a single chain antibody of the invention), requires construction of an expression vector containing a polynucleotide that encodes the antibody. Once a polynucleotide encoding an antibody molecule or a heavy or light chain of an antibody, or portion thereof (preferably containing the heavy or light chain variable domain), of the invention has been obtained, the vector for the production of the antibody molecule may be produced by recombinant DNA technology using techniques well known in the art. Thus, methods for preparing a protein by expressing a polynucleotide containing an antibody encoding nucleotide sequence are described herein. Methods which are well known to those skilled in the art can be used to construct expression vectors containing antibody coding sequences and appropriate transcriptional and translational control signals. These methods include, for example, in vitro recombinant DNA techniques, synthetic techniques, and in vivo genetic recombination. The invention, thus, provides replicable vectors comprising a nucleotide sequence encoding an antibody molecule ofthe invention, or a heavy or light chain thereof, or a heavy or light chain variable domain, operably linked to a promoter. Such vectors may include the nucleotide sequence encoding the constant region of the antibody molecule (see, e.g., PCT Publication WO 86/05807; PCT Publication WO 89/01036; and U.S. Patent No. 5,122,464) and the variable domain of the antibody may be cloned into such a vector for expression of the entire heavy or light chain. [380] The expression vector is transferred to a host cell by conventional techniques and the transfected cells are then cultured by conventional techniques to produce an antibody of the invention. Thus, the invention includes host cells containing a polynucleotide encoding an antibody of the invention, or a heavy or light chain thereof, or a single chain antibody of the invention, operably linked to a heterologous promoter. In preferred embodiments for the expression of double-chained antibodies, vectors encoding both the heavy and light chains may be co-expressed in the host cell for expression of the entire immunoglobulin molecule, as detailed below. [381] A variety of host-expression vector systems may be utilized to express the antibody molecules of the invention. Such host-expression systems represent vehicles by which the coding sequences of interest may be produced and subsequently purified, but also represent cells which may, when transformed or transfected with the appropriate nucleotide coding sequences, express an antibody molecule of the invention in situ. These include but are not limited to microorganisms such as bacteria (e.g., E. coli, B. subtilis) transformed with recombinant bacteriophage DNA, plasmid DNA or cosmid DNA expression vectors containing antibody coding sequences; yeast (e.g., Saccharomyces, Pichia) transformed with recombinant yeast expression vectors containing antibody coding sequences; insect cell systems infected with recombinant virus expression vectors (e.g., baculovirus) containing antibody coding sequences; plant cell systems infected with recombinant virus expression vectors (e.g., cauliflower mosaic virus, CaMV; tobacco mosaic virus, TMV) or transformed with recombinant plasmid expression vectors (e.g., Ti plasmid) containing antibody coding sequences; or mammalian cell systems (e.g., COS, CHO, BHK, 293, 3T3 cells) harboring recombinant expression constructs containing promoters derived from the genome of mammalian cells (e.g., metallothionein promoter) or from mammalian viruses (e.g., the adenovirus late promoter; the vaccinia virus 7.5K promoter). Preferably, bacterial cells such as Escherichia coli, and more preferably, eukaryotic cells, especially for the expression of whole recombinant antibody molecule, are used for the expression of a recombinant antibody molecule. For example, mammalian cells such as Chinese hamster ovary cells (CHO), in conjunction with a vector such as the major intermediate early gene promoter element from human cytomegalovirus is an effective expression system for antibodies (Foecking et al., Gene 45:101 (1986); Cockett et al., Bio/Technology 8:2 (1990)). [382] In bacterial systems, a number of expression vectors may be advantageously selected depending upon the use intended for the antibody molecule being expressed. For example, when a large quantity of such a protein is to be produced, for the generation of pharmaceutical compositions of an antibody molecule, vectors which direct the expression of high levels of fusion protein products that are readily purified may be desirable. Such vectors include, but are not limited, to the E. coli expression vector pUR278 (Ruther et al., EMBO J. 2:1791 (1983)), in which the antibody coding sequence may be ligated individually into the vector in frame with the lac Z coding region so that a fusion protein is produced; pIN vectors (friouye & Inouye, Nucleic Acids Res. 13:3101-3109 (1985); Van Heeke & Schuster, J. Biol. Chem. 24:5503-5509 (1989)); and the like. pGEX vectors may also be used to express foreign polypeptides as fusion proteins with glutathione S-transferase (GST). In general, such fusion proteins are soluble and can easily be purified from lysed cells by adsorption and binding to matrix glutathione-agarose beads followed by elution in the presence of free glutathione. The pGEX vectors are designed to include thrombin or factor Xa protease cleavage sites so that the cloned target gene product can be released from the GST moiety. [383] In an insect system, Autographa californica nuclear polyhedrosis virus (AcNPV) is used as a vector to express foreign genes. The virus grows in Spodoptera frugiperda cells. The antibody coding sequence may be cloned individually into non-essential regions (for example the polyhedrin gene) of the virus and placed under control of an AcNPV promoter (for example the polyhedrin promoter). [384] In mammalian host cells, a number of viral-based expression systems may be utilized. In cases where an adenovirus is used as an expression vector, the antibody coding sequence of interest may be ligated to an adenovirus transcription/translation control complex, e.g., the late promoter and tripartite leader sequence. This chimeric gene may then be inserted in the adenovirus genome by in vitro or in vivo recombination. Insertion in a non- essential region of the viral genome (e.g., region El or E3) will result in a recombinant virus that is viable and capable of expressing the antibody molecule in infected hosts, (e.g., see Logan & Shenk, Proc. Natl. Acad. Sci. USA 81:355-359 (1984)). Specific initiation signals may also be required for efficient translation of inserted antibody coding sequences. These signals include the ATG initiation codon and adjacent sequences. Furthermore, the initiation codon must be in phase with the reading frame of the desired coding sequence to ensure translation of the entire insert. These exogenous translational control signals and initiation codons can be of a variety of origins, both natural and synthetic. The efficiency of expression may be enhanced by the inclusion of appropriate transcription enhancer elements, transcription terminators, etc. (see Bittner et al., Methods in Enzymol. 153:51-544 (1987)). [385] In addition, a host cell strain may be chosen which modulates the expression ofthe inserted sequences, or modifies and processes the gene product in the specific fashion desired. Such modifications (e.g., glycosylation) and processing (e.g., cleavage) of protein products may be important for the function of the protein. Different host cells have characteristic and specific mechanisms for the post-translational processing and modification of proteins and gene products. Appropriate cell lines or host systems can be chosen to ensure the correct modification and processing ofthe foreign protein expressed. To this end, eukaryotic host cells which possess the cellular machinery for proper processing of the primary transcript, glycosylation, and phosphorylation of the gene product may be used. Such mammalian host cells include but are not limited to CHO, VERY, BHK, Hela, COS, MDCK, 293, 3T3, WI38, and in particular, breast cancer cell lines such as, for example, BT483, Hs578T, HTB2, BT20 and T47D, and normal mammary gland cell line such as, for example, CRL7030 and Hs578Bst. [386] For long-term, high-yield production of recombinant proteins, stable expression is preferred. For example, cell lines which stably express the antibody molecule may be engineered. Rather than using expression vectors which contain viral origins of replication, host cells can be transformed with DNA controlled by appropriate expression control elements (e.g., promoter, enhancer, sequences, transcription terminators, polyadenylation in-h-rnlπr-tinn nf t it * f s-r&irm TΥN.TΔ [387] A number of selection systems may be used, including but not limited to the herpes simplex virus thymidine kinase (Wigler et al., Cell 11:223 (1977)), hypoxanthine-guanine phosphoribosyltransferase (Szybalska & Szybalski, Proc. Natl. Acad. Sci. USA 48:202 (1992)), and adenine phosphoribosyltransferase (Lowy et al, Cell 22:817 (1980)) genes can be employed in tk-, hgprt- or aprt- cells, respectively. Also, antimetabolite resistance can be used as the basis of selection for the following genes: dhfr, which confers resistance to methotrexate (Wigler et al., Natl. Acad. Sci. USA 77:357 (1980); O'Hare et al., Proc. Natl. Acad. Sci. USA 78:1527 (1981)); gpt, which confers resistance to mycophenolic acid (Mulligan & Berg, Proc. Natl. Acad. Sci. USA 78:2072 (1981)); neo, which confers resistance to the aminoglycoside G-418 Clinical Pharmacy 12:488-505; Wu and Wu, Biotherapy 3:87-95 (1991); Tolstoshev, Ann. Rev. Pharmacol. Toxicol. 32:573-596 (1993); Mulligan, Science 260:926-932 (1993); and Morgan and Anderson, Ann. Rev. Biochem. 62:191-217 (1993); May, 1993, TEB TECH 11(5)355-215); and hygro, which confers resistance to hygromycin (Santerre et al., Gene 30:147 (1984)). Methods commonly known in the art of recombinant DNA technology may be routinely applied to select the desired recombinant clone, and such methods are described, for example, in Ausubel et al. (eds.), Current Protocols in Molecular Biology, John Wiley & Sons, NY (1993); Kriegler, Gene Transfer and Expression, A Laboratory Manual, Stockton Press, NY (1990); and in Chapters 12 and 13, Dracopoli et al. (eds), Current Protocols in Human Genetics, John Wiley & Sons, NY (1994); Colberre-Garapin et al., J. Mol. Biol. 150:1 (1981), which are incorporated by reference herein in their entireties. [388] The expression levels of an antibody molecule can be increased by vector amplification (for a review, see Bebbington and Hentschel, The use of vectors based on gene amplification for the expression of cloned genes in mammalian cells in DNA cloning, Vol.3. (Academic Press, New York, 1987)). When a marker in the vector system expressing antibody is amplifiable, increase in the level of inhibitor present in culture of host cell will increase the number of copies of the marker gene. Since the amplified region is associated with the antibody gene, production of the antibody will also increase (Crouse et al., Mol. Cell. Biol. 3:257 (1983)). [389] The host cell may be co-transfected with two expression vectors of the invention, the first vector encoding a heavy chain derived polypeptide and the second vector encoding a light chain derived polypeptide. The two vectors may contain identical selectable markers which enable equal expression of heavy and light chain polypeptides. Alternatively, a single vector may be used which encodes, and is capable of expressing, both heavy and light chain polypeptides. In such situations, the light chain should be placed before the heavy chain to avoid an excess of toxic free heavy chain (Proudfoot, Nature 322:52 (1986); Kohler, Proc. Natl. Acad. Sci. USA 77:2197 (1980)). The coding sequences for the heavy and light chains may comprise cDNA or genomic DNA. [390] Once an antibody molecule of the invention has been produced by an animal, chemically synthesized, or recombinantly expressed, it may be purified by any method known in the art for purification of an immunoglobulin molecule, for example, by chromatography (e.g., ion exchange, affinity, particularly by affinity for the specific antigen after Protein A, and sizing column chromatography), centrifugation, differential solubility, or by any other standard technique for the purification of proteins. In addition, the antibodies of the present invention or fragments thereof can be fused to heterologous polypeptide sequences described herein or otherwise known in the art, to facilitate purification. [391] The present invention encompasses antibodies recombinantly fused or chemically conjugated (including both covalently and non-covalently conjugations) to a polypeptide (or portion thereof, preferably at least 10, 20, 30, 40, 50, 60, 70, 80, 90 or 100 amino acids ofthe polypeptide) of the present invention to generate fusion proteins. The fusion does not necessarily need to be direct, but may occur through linker sequences. The antibodies may be specific for antigens other than polypeptides (or portion thereof, preferably at least 10, 20, 30, 40, 50, 60, 70, 80, 90 or 100 amino acids ofthe polypeptide) ofthe present invention. For example, antibodies may be used to target the polypeptides of the present invention to particular cell types, either in vitro or in vivo, by fusing or conjugating the polypeptides of the present invention to antibodies specific for particular cell surface receptors. Antibodies fused or conjugated to the polypeptides ofthe present invention may also be used in in vitro immunoassays and purification methods using methods known in the art. See e.g., Harbor et al., supra, and PCT publication WO 93/21232; EP 439,095; Naramura et al., Immunol. Lett. 39:91-99 (1994); U.S. Patent 5,474,981; Gillies et al., PNAS 893428-1432 (1992); Fell et al., J. Immunol. 146:2446-2452(1991), which are incorporated by reference in their entireties. [392] The present invention further includes compositions comprising the polypeptides of the present invention fused or conjugated to antibody domains other than the variable regions. For example, the polypeptides of the present invention may be fused or conjugated to an antibody Fc region, or portion thereof. The antibody portion fused to a polypeptide of the present invention may comprise the constant region, hinge region, CHI domain, CH2 domain, and CH3 domain or any combination of whole domains or portions thereof. The polypeptides may also be fused or conjugated to the above antibody portions to form multimers. For example, Fc portions fused to the polypeptides of the present invention can foπn dimers through disulfide bonding between the Fc portions. Higher multimeric forms can be made by fusing the polypeptides to portions of IgA and IgM. Methods for fusing or conjugating the polypeptides of the present invention to antibody portions are known in the art. See, e.g., U.S. Patent Nos. 5,336,603; 5,622,929; 5,359,046; 5,349,053; 5,447,851; 5,112,946; EP 307,434; EP 367,166; PCT publications WO 96/04388; WO 91/06570; Ashkenazi et al., Proc. Natl. Acad. Sci. USA 8830535-10539 (1991); Zheng et al., J. Immunol. 154:5590-5600 (1995); and Vil et al., Proc. Natl. Acad. Sci. USA 89:11337- 11341(1992) (said references incorporated by reference in their entireties). [393] As discussed, supra, the polypeptides corresponding to a polypeptide, polypeptide fragment, or a variant of SEQ DD NO:Y may be fused or conjugated to the above antibody portions to increase the in vivo half life ofthe polypeptides or for use in immunoassays using methods known in the art. Further, the polypeptides corresponding to SEQ DD NO:Y may be fused or conjugated to the above antibody portions to facilitate purification. One reported example describes chimeric proteins consisting of the first two domains of the human CD4- polypeptide and various domains of the constant regions of the heavy or light chains of mammalian immunoglobulins. (EP 394,827; Traunecker et al, Nature 331:84-86 (1988). The polypeptides of the present invention fused or conjugated to an antibody having disulfide- linked dimeric structures (due to the IgG) may also be more efficient in binding and neutralizing other molecules, than the monomeric secreted protein or protein fragment alone. (Fountoulakis et al., J. Biochem. 270:3958-3964 (1995)). In many cases, the Fc part in a fusion protein is beneficial in therapy and diagnosis, and thus can result in, for example, improved pharmacokinetic properties. (EP A 232,262). Alternatively, deleting the Fc part after the fusion protein has been expressed, detected, and purified, would be desired. For example, the Fc portion may hinder therapy and diagnosis if the fusion protein is used as an antigen for immunizations. In drug discovery, for example, human proteins, such as hIL-5, have been fused with Fc portions for the purpose of high-throughput screening assays to identify antagonists of hIL-5. (See, Bennett et al., J. Molecular Recognition 8:52-58 (1995); Johanson et al., J. Biol. Chem. 270:9459-9471 (1995). [394] Moreover, the antibodies or fragments thereof of the present invention can be fused to marker sequences, such as a peptide to facilitate purification. In preferred embodiments, the marker amino acid sequence is a hexa-histidine peptide, such as the tag provided in a pQE vector (QIAGEN, Inc., 9259 Eton Avenue, Chatsworth, CA, 91311), among others, many of which are commercially available. As described in Gentz et al., Proc. Natl. Acad. Sci. USA 86:821-824 (1989), for instance, hexa-histidine provides for convenient purification of the fusion protein. Other peptide tags useful for purification include, but are not limited to, the "HA" tag, which corresponds to an epitope derived from the influenza hemagglutinin protein (Wilson et al., Cell 37:767 (1984)) and the "flag" tag. [395] The present invention further encompasses antibodies or fragments thereof conjugated to a diagnostic or therapeutic agent. The antibodies can be used diagnostically to, for example, monitor the development or progression of a tumor as part of a clinical testing procedure to, e.g.:, determine the efficacy of a given treatment regimen. Detection can be facilitated by coupling the antibody to a detectable substance. Examples of detectable substances include various enzymes, prosthetic groups, fluorescent materials, luminescent materials, bioluminescent materials, radioactive materials, positron emitting metals using various positron emission tomographies, and nonradioactive paramagnetic metal ions. The detectable substance may be coupled or conjugated either directly to the antibody (or fragment thereof) or indirectly, through an intermediate (such as, for example, a linker known in the art) using techniques known in the art. See, for example, U.S. Patent No. 4,741,900 for metal ions which can be conjugated to antibodies for use as diagnostics according to the present invention. Examples of suitable enzymes include horseradish peroxidase, alkaline phosphatase, beta-galactosidase, or acetylcholinesterase; examples of suitable prosthetic group complexes include streptavidin/biotin and avidin/biotin; examples of suitable fluorescent materials include umbelliferone, fluorescein, fluorescein isothiocyanate, rhodamine, dichlorotriazinylamine fluorescein, dansyl chloride or phycoerythrin; an example of a luminescent material includes luminol; examples of bioluminescent materials include luciferase, luciferin, and aequorin; and examples of suitable radioactive material include 1251, 1311, 11 Hn or 99Tc. [396] Further, an antibody or fragment thereof may be conjugated to a therapeutic moiety such as a cytotoxin, e.g., a cytostatic or cytocidal agent, a therapeutic agent or a radioactive metal ion, e.g., alpha-emitters such as, for example, 213Bi. A cytotoxin or cytotoxic agent includes any agent that is detrimental to cells. Examples include paclitaxol, cytochalasin B, gramicidin D, etnidium bromide, emetine, mitomycin, etoposide, tenoposide, vincristine, vinblastine, colchicin, doxorubicin, daunorubicin, dihydroxy anthracin dione, mitoxantrone, mithramycin, actinomycin D, 1-dehydrotestosterone, glucocorticoids, procaine, tetracaine, lidocainej propranolol, and puromycin and analogs or homologs thereof. Therapeutic agents include, but are not limited to, antimetabolites (e.g., methotrexate, 6-mercaptopurine, 6- thioguanine, cytarabine, 5-fluorouracil decarbazine), alkylating agents (e.g., mechlorethamine, thioepa chlorambucil, melphalan, caπnustine (BSNU) and lomustine (CCNU), cyclothosphamide, busulfan, dibromomannitol, streptozotocin, mitomycin C, and cis- dichlorodiamine platinum (D) (DDP) cisplatin), anthracyclines (e.g., daunorubicin (formerly daunomycin) and doxorubicin), antibiotics (e.g., dactinomycin (formerly actinomycin), bleomycin, mithramycin, and anthramycin (AMC)), and anti-mitotic agents (e.g., vincristine and vinblastine). [397] The conjugates of the invention can be used for modifying a given biological response, the therapeutic agent or drug moiety is not to be construed as limited to classical chemical therapeutic agents. For example, the drug moiety may be a protein or polypeptide possessing a desired biological activity. Such proteins may include, for example, a toxin such as abrin, ricin A, pseudomonas exotoxin, or diphtheria toxin; a protein such as tumor necrosis factor, a-interferon, β-interferon, nerve growth factor, platelet derived growth factor, tissue plasminogen activator, an apoptotic agent, e.g., TNF-alpha, TNF-beta, AIM I (See, International Publication No. WO 97/33899), AEVI II (See, International Publication No. WO 97/34911), Fas Ligand (Takahashi et al, Int. Immunol, 6:1561-1514 (1994)), VEGI (See, International Publication No. WO 99/23105), a thrombotic agent or an anti- angiogenic agent, e.g., angiostatin or endostatin; or, biological response modifiers such as, for example, lymphokines, interleukin-1 ("IL-1"), interleukin-2 ("IL-2"), interleukin-6 ("E -6"), granulocyte macrophage colony stimulating factor ("GM-CSF"), granulocyte colony stimulating factor ("G-CSF"), or other growth factors. [398] Antibodies may also be attached to solid supports, which are particularly useful for immunoassays or purification ofthe target antigen. Such solid supports include, but are not limited to, glass, cellulose, polyacrylamide, nylon, polystyrene, polyvinyl chloride or polypropylene. [399] Techniques for conjugating such therapeutic moiety to antibodies are well known, see, e.g., Arnon et al., "Monoclonal Antibodies For Immunotargeting Of Drugs In Cancer Therapy", in Monoclonal Antibodies And Cancer Therapy, Reisfeld et al. (eds.), pp. 243-56 (Alan R. Liss, Inc. 1985); Hellstrom et al., "Antibodies For Drug Delivery", in Controlled Drug Delivery (2nd Ed.), Robinson et al. (eds.), pp. 623-53 (Marcel Dekker, Inc. 1987); Thorpe, "Antibody Carriers Of Cytotoxic Agents In Cancer Therapy: A Review", in Monoclonal Antibodies '84: Biological And Clinical Applications, Pinchera et al. (eds.), pp. 475-506 (1985); "Analysis, Results, And Future Prospective Of The Therapeutic Use Of Radiolabeled Antibody In Cancer Therapy", in Monoclonal Antibodies For Cancer Detection And Therapy, Baldwin et al. (eds.), pp. 303-16 (Academic Press 1985), and Thorpe et al., "The Preparation And Cytotoxic Properties Of Antibody-Toxin Conjugates", Immunol. Rev. 62319-58 (1982). [400] Alternatively, an antibody can be conjugated to a second antibody to form an antibody heteroconjugate as described by Segal in U.S. Patent No. 4,676,980, which is incorporated herein by reference in its entirety. [401] An antibody, with or without a therapeutic moiety conjugated to it, administered alone or in combination with cytotoxic factor(s) and/or cytokine(s) can be used as a therapeutic. Immunophenotyping [402] The antibodies of the invention may be utilized for immunophenotyping of cell lines and biological samples. The translation product ofthe gene ofthe present invention may be useful as a cell specific marker, or more specifically as a cellular marker that is differentially expressed at various stages of differentiation and/or maturation of particular cell types. Monoclonal antibodies directed against a specific epitope, or combination of epitopes, will allow for the screening of cellular populations expressing the marker. Various techniques can be utilized using monoclonal antibodies to screen for cellular populations expressing the marker(s), and include magnetic separation using antibody-coated magnetic beads, "panning" with antibody attached to a solid matrix (i.e., plate), and flow cytometry (See, e.g., U.S. Patent 5,985,660; and Morrison et al, Cell, 96:131-49 (1999)). [403] These techniques allow for the screening of particular populations of cells, such as might be found with hematological malignancies (i.e. minimal residual disease (MRD) in acute leukemic patients) and "non-self cells in transplantations to prevent Graft-versus-Host Disease (GVHD). Alternatively, these techniques allow for the screening of hematopoietic stem and progenitor cells capable of undergoing proliferation and/or differentiation, as might be found in human umbilical cord blood. Assays For Antibody Binding [404] The antibodies ofthe invention may be assayed for immunospecific binding by any method known in the art. The immunoassays which can be used include but are not limited to competitive and non-competitive assay systems using techniques such as western blots, radioimmunoassays, ELISA (enzyme linked immunosorbent assay), "sandwich" immunoassays, immunoprecipitation assays, precipitin reactions, gel diffusion precipitin reactions, immunodiffusion assays, agglutination assays, complement-fixation assays, immunoradiometric assays, fluorescent immunoassays, protein A immunoassays, to name but a few. Such assays are routine and well known in the art (see, e.g., Ausubel et al, eds, 1994, Current Protocols in Molecular Biology, Vol. 1, John Wiley & Sons, Inc., New York, which is incorporated by reference herein in its entirety). Exemplary immunoassays are described briefly below (but are not intended by way of limitation). [405] Immunoprecipitation protocols generally comprise lysing a population of cells in a lysis buffer such as REP A buffer (1%» NP-40 or Triton X- 100, 1% sodium deoxycholate, 0.1% SDS, 0.15 M NaCl, 0.01 M sodium phosphate at pH 7.2, 1% Trasylol) supplemented with protein phosphatase and/or protease inhibitors (e.g., EDTA, PMSF, aprotinin, sodium vanadate), adding the antibody of interest to the cell lysate, incubating for a period of time (e.g., 1-4 hours) at 4° C, adding protein A and/or protein G sepharose beads to the cell lysate, incubating for about an hour or more at 4° C, washing the beads in lysis buffer and resuspending the beads in SDS/sample buffer. The ability of the antibody of interest to immunoprecipitate a particular antigen can be assessed by, e.g., western blot analysis. One of skill in the art would be knowledgeable as to the parameters that can be modified to increase the binding of the antibody to an antigen and decrease the background (e.g., pre-clearing the cell lysate with sepharose beads). For further discussion regarding immunoprecipitation protocols see, e.g., Ausubel et al, eds, 1994, Current Protocols in Molecular Biology, Vol. 1, John Wiley & Sons, Inc., New York at 10.16.1. [406] Western blot analysis generally comprises preparing protein samples, electrophoresis of the protein samples in a polyacrylamide gel (e.g., 8%- 20% SDS-PAGE depending on the molecular weight of the antigen), transferring the protein sample from the polyacrylamide gel to a membrane such as nitrocellulose, PVDF or nylon, blocking the membrane in blocking solution (e.g., PBS with 3% BSA or non-fat milk), washing the membrane in washing buffer (e.g., PBS-Tween 20), blocking the membrane with primary antibody (the antibody of interest) diluted in blocking buffer, washing the membrane in washing buffer, blocking the membrane with a secondary antibody (which recognizes the primary antibody, e.g., an anti-human antibody) conjugated to an enzymatic substrate (e.g., horseradish peroxidase or alkaline phosphatase) or radioactive molecule (e.g., 32P or 1251) diluted in blocking buffer, washing the membrane in wash buffer, and detecting the presence ofthe antigen. One of skill in the art would be knowledgeable as to the parameters that can be modified to increase the signal detected and to reduce the background noise. For further discussion regarding western blot protocols see, e.g., Ausubel et al, eds, 1994, Current Protocols in Molecular Biology, Vol. 1, John Wiley & Sons, Inc., New York at 10.8.1. [407] ELIS As comprise preparing antigen, coating the well of a 96 well microtiter plate with the antigen, adding the antibody of interest conjugated to a detectable compound such as an enzymatic substrate (e.g., horseradish peroxidase or alkaline phosphatase) to the well and incubating for a period of time, and detecting the presence ofthe antigen. In ELIS As the antibody of interest does not have to be conjugated to a detectable compound; instead, a second antibody (which recognizes the antibody of interest) conjugated to a detectable compound may be added to the well. Further, instead of coating the well with the antigen, the antibody may be coated to the well, hi this case, a second antibody conjugated to a detectable compound may be added following the addition of the antigen of interest to the coated well. One of skill in the art would be knowledgeable as to the parameters that can be modified to increase the signal detected as well as other variations of ELIS As known in the art. For further discussion regarding ELISAs see, e.g., Ausubel et al, eds, 1994, Current Protocols in Molecular Biology, Vol. 1 , John Wiley & Sons, Inc., New York at 11.2.1. [408] The binding affinity of an antibody to an antigen and the off-rate of an antibody- antigen interaction can be determined by competitive binding assays. One example of a competitive binding assay is a radioimmunoassay comprising the incubation of labeled antigen (e.g., 3H or 1251) with the antibody of interest in the presence of increasing amounts of unlabeled antigen, and the detection of the antibody bound to the labeled antigen. The affinity of the antibody of interest for a particular antigen and the binding off-rates can be determined from the data by scatchard plot analysis. Competition with a second antibody can also be determined using radioimmunoassays. In this case, the antigen is incubated with antibody of interest conjugated to a labeled compound (e.g., 3H or 1251) in the presence of increasing amounts of an unlabeled second antibody. Therapeutic Uses [409] The present invention is further directed to antibody-based therapies which involve administering antibodies of the invention to an animal, preferably a mammal, and most preferably a human, patient for treating one or more of the disclosed diseases, disorders, or conditions. Therapeutic compounds of the invention include, but are not limited to, antibodies ofthe invention (including fragments, analogs and derivatives thereof as described herein) and nucleic acids encoding antibodies of the invention (including fragments, analogs and derivatives thereof and anti-idiotypic antibodies as described herein). The antibodies of the invention can be used to treat, inhibit or prevent diseases, disorders or conditions associated with aberrant expression and/or activity of a polypeptide of the invention, including, but not limited to, any one or more of the diseases, disorders, or conditions described herein. The treatment and/or prevention of diseases, disorders, or conditions associated with aberrant expression and/or activity of a polypeptide ofthe invention includes, but is not limited to, alleviating symptoms associated with those diseases, disorders or conditions. Antibodies of the invention may be provided in pharmaceutically acceptable compositions as known in the art or as described herein. [410] A summary of the ways in which the antibodies of the present invention may be used therapeutically includes binding polynucleotides or polypeptides of the present invention locally or systemically in the body or by direct cytotoxicity of the antibody, e.g. as mediated by complement (CDC) or by effector cells (ADCC). Some of these approaches are described in more detail below. Armed with the teachings provided herein, one of ordinary skill in the art will know how to use the antibodies of the present invention for diagnostic, monitoring or therapeutic purposes without undue experimentation. [411] The antibodies of this invention may be advantageously utilized in combination with other monoclonal or chimeric antibodies, or with lymphokines or hematopoietic growth factors (such as, e.g., E -2, EL-3 and EL-7), for example, which serve to increase the number or activity of effector cells which interact with the antibodies. [412] The antibodies of the invention may be administered alone or in combination with other types of treatments (e.g., radiation therapy, chemotherapy, hormonal therapy, immunotherapy and anti-tumor agents). Generally, administration of products of a species origin or species reactivity (in the case of antibodies) that is the same species as that of the patient is preferred. Thus, in a preferred embodiment, human antibodies, fragments derivatives, analogs, or nucleic acids, are administered to a human patient for therapy or prophylaxis. [413] It is preferred to use high affinity and/or potent in vivo inhibiting and/or neutralizing antibodies against polypeptides or polynucleotides of the present invention, fragments or regions thereof, for both immunoassays directed to and therapy of disorders related to polynucleotides or polypeptides, including fragments thereof, of the present invention. Such antibodies, fragments, or regions, will preferably have an affinity for polynucleotides or polypeptides of the invention, including fragments thereof. Preferred binding affinities include those with a dissociation constant or Kd less than 5 X 10 "2 M, 10 "2 M, 5 X 10 "3 M, 10 "3 M, 5 X 10 "4 M, 10 "4 M, 5 X 10 "5 M, 10 ~5 M, 5 X 10 "6 M, 10 "6 M, 5 X 10 "7 M, 10 "7 M, 5 X 10 "8 M, 10 "8 M, 5 X 10 "9 M, 10 "9 M, 5 X 10 "10 M, 10 "10 M, 5 X 10 "π M, 10 "11 M, 5 X 10 "12 M, 10 "12 M, 5 X 10 "13 M, 10 " 13 M, 5 X 10 "14 M, 10 -14 M, 5 X 10 -15 M, and 10 "15 M. Gene Therapy [414] hi a specific embodiment, nucleic acids comprising sequences encoding antibodies or functional derivatives thereof, are administered to treat, inhibit or prevent a disease or disorder associated with aberrant expression and/or activity of a polypeptide ofthe invention, by way of gene therapy. Gene therapy refers to therapy performed by the administration to a subject of an expressed or expressible nucleic acid. In this embodiment ofthe invention, the nucleic acids produce their encoded protein that mediates a therapeutic effect. [415] Any of the methods for gene therapy available in the art can be used according to the present invention. Exemplary methods are described below. [416] For general reviews of the methods of gene therapy, see Goldspiel et al., Clinical Pharmacy 12:488-505 (1993); Wu and Wu, Biotherapy 3:87-95 (1991); Tolstoshev, Ann. Rev. Pharmacol. Toxicol. 32:573-596 (1993); Mulligan, Science 260:926-932 (1993); and Morgan and Anderson, Ann. Rev. Biochem. 62:191-217 (1993); May, TIBTECH 11(5)355- 215 (1993). Methods commonly known in the art of recombinant DNA technology wliich can be used are described in Ausubel et al. (eds.), Current Protocols in Molecular Biology, John Wiley & Sons, NY (1993); and Kriegler, Gene Transfer and Expression, A Laboratory Manual, Stockton Press, NY (1990). [417] In a preferred aspect, the compound comprises nucleic acid sequences encoding an antibody, said nucleic acid sequences being part of expression vectors that express the antibody or fragments or chimeric proteins or heavy or light chains thereof in a suitable host. In particular, such nucleic acid sequences have promoters operably linked to the antibody coding region, said promoter being inducible or constitutive, and, optionally, tissue-specific, hi another particular embodiment, nucleic acid molecules are used in which the antibody coding sequences and any other desired sequences are flanked by regions that promote homologous recombination at a desired site in the genome, thus providing for intrachromosomal expression of the antibody encoding nucleic acids (KoUer and Smithies, Proc. Natl. Acad. Sci. USA 86:8932-8935 (1989); Zijlsfra et al., Nature 342:435-438 (1989). In specific embodiments, the expressed antibody molecule is a single chain antibody; alternatively, the nucleic acid sequences include sequences encoding both the heavy and light chains, or fragments thereof, ofthe antibody. [418] Delivery of the nucleic acids into a patient may be either direct, in which case the patient is directly exposed to the nucleic acid or nucleic acid- carrying vectors, or indirect, in which case, cells are first transformed with the nucleic acids in vitro, then transplanted into the patient. These two approaches are known, respectively, as in vivo or ex vivo gene therapy. [419] In a specific embodiment, the nucleic acid sequences are directly administered in vivo, where it is expressed to produce the encoded product. This can be accomplished by any of numerous methods known in the art, e.g., by constructing them as part of an appropriate nucleic acid expression vector and administering it so that they become intracellular, e.g., by infection using defective or attenuated retrovirals or other viral vectors (see U.S. Patent No. 4,980,286), or by direct injection of naked DNA, or by use of microparticle bombardment (e.g., a gene gun; Biolistic, Dupont), or coating with lipids or cell-surface receptors or transfecting agents, encapsulation in liposomes, microparticles, or microcapsules, or by administering them in linkage to a peptide which is known to enter the nucleus, by administering it in linkage to a ligand subject to receptor-mediated endocytosis (see, e.g., Wu and Wu, J. Biol. Chem. 262:4429-4432 (1987)) (which can be used to target cell types specifically expressing the receptors), etc. In another embodiment, nucleic acid- ligand complexes can be formed in which the ligand comprises a fusogenic viral peptide to disrupt endosomes, allowing the nucleic acid to avoid lysosomal degradation. In yet another embodiment, the nucleic acid can be targeted in vivo for cell specific uptake and expression, by targeting a specific receptor (see, e.g., PCT Publications WO 92/06180; WO 92/22635; WO92/20316; WO93/14188, WO 93/20221). Alternatively, the nucleic acid can be introduced intracellularly and incorporated within host cell DNA for expression, by homologous recombination (Koller and Smithies, Proc. Natl. Acad. Sci. USA 86:8932-8935 (1989); Zijlsfra et al., Nature 342:435-438 (1989)). [420] In a specific embodiment, viral vectors that contains nucleic acid sequences encoding an antibody ofthe invention are used. For example, a retroviral vector can be used (see Miller et al., Meth. Enzymol. 217:581-599 (1993)). These retroviral vectors contain the components necessary for the correct packaging of the viral genome and integration into the host cell DNA. The nucleic acid sequences encoding the antibody to be used in gene therapy are cloned into one or more vectors, which facilitates delivery of the gene into a patient. More detail about retroviral vectors can be found in Boesen et al., Biotherapy 6:291-302 (1994), which describes the use of a retroviral vector to deliver the mdrl gene to hematopoietic stem cells in order to make the stem cells more resistant to chemotherapy. Other references illustrating the use of retroviral vectors in gene therapy are: Clowes et al., J. Clin. Invest. 93:644-651 (1994); Kiem et al., Blood 833467-1473 (1994); Salmons and Gunzberg, Human Gene Therapy 4329-141 (1993); and Grossman and Wilson, Curr. Opin. in Genetics and Devel. 3310-114 (1993). [421] Adenoviruses are other viral vectors that can be used in gene therapy. Adenoviruses are especially attractive vehicles for delivering genes to respiratory epithelia. Adenoviruses naturally infect respiratory epithelia where they cause a mild disease. Other targets for adenovirus-based delivery systems are liver, the central nervous system, endothelial cells, and muscle. Adenoviruses have the advantage of being capable of infecting non-dividing cells. Kozarsky and Wilson, Current Opinion in Genetics and Development 3:499-503 (1993) present a review of adenovirus-based gene therapy. Bout et al., Human Gene Therapy 5:3-10 (1994) demonstrated the use of adenovirus vectors to transfer genes to the respiratory epithelia of rhesus monkeys. Other instances of the use of adenoviruses in gene therapy can be found in Rosenfeld et al., Science 252:431-434 (1991); Rosenfeld et al., Cell 68:143- 155 (1992); Mastrangeli et al., J. Clin. Invest. 91:225-234 (1993); PCT Publication WO94/12649; and Wang, et al., Gene Therapy 2:775-783 (1995). In a preferred embodiment, adenovirus vectors are used. [422] Adeno-associated virus (AAV) has also been proposed for use in gene therapy (Walsh et al., Proc. Soc. Exp. Biol. Med. 204:289-300 (1993); U.S. Patent No. 5,436,146). [423] Another approach to gene therapy involves transferring a gene to cells in tissue culture by such methods as electroporation, lipofection, calcium phosphate mediated transfection, or viral infection. Usually, the method of transfer includes the transfer of a selectable marker to the cells. The cells are then placed under selection to isolate those cells that have taken up and are expressing the transferred gene. Those cells are then delivered to a patient. [424] hi this embodiment, the nucleic acid is introduced into a cell prior to administration in vivo ofthe resulting recombinant cell. Such introduction can be carried out by any method known in the art, including but not limited to transfection, electroporation, microinjection, infection with a viral or bacteriophage vector containing the nucleic acid sequences, cell fusion, chromosome-mediated gene transfer, microcell-mediated gene transfer, spheroplast fusion, etc. Numerous techniques are known in the art for the introduction of foreign genes into cells (see, e.g., Loeffler and Behr, Meth. Enzymol. 217:599-618 (1993); Cohen et al., Meth. Enzymol. 217:618-644 (1993); Cline, Pharmac. Ther. 29:69-92m (1985) and may be used in accordance with the present invention, provided that the necessary developmental and physiological functions of the recipient cells are not disrupted. The technique should provide for the stable transfer ofthe nucleic acid to the cell, so that the nucleic acid is expressible by the cell and preferably heritable and expressible by its cell progeny. [425] The resulting recombinant cells can be delivered to a patient by various methods known in the art. Recombinant blood cells (e.g., hematopoietic stem or progenitor cells) are preferably administered intravenously. The amount of cells envisioned for use depends on the desired effect, patient state, etc., and can be determined by one skilled in the art. [426] Cells into which a nucleic acid can be introduced for purposes of gene therapy encompass any desired, available cell type, and include but are not limited to epithelial cells, endothelial cells, keratinocytes, fibroblasts, muscle cells, hepatocytes; blood cells such as T lymphocytes, B lymphocytes, monocytes, macrophages, neutrophils, eosinophils, megakaryocytes, granulocytes; various stem or progenitor cells, in particular hematopoietic stem or progenitor cells, e.g., as obtained from bone marrow, umbilical cord blood, peripheral blood, fetal liver, etc. [427] hi a preferred embodiment, the cell used for gene therapy is autologous to the patient. [428] hi an embodiment in which recombinant cells are used in gene therapy, nucleic acid sequences encoding an antibody are introduced into the cells such that they are expressible by the cells or their progeny, and the recombinant cells are then administered in vivo for therapeutic effect. In a specific embodiment, stem or progemtor cells are used. Any stem and/or progenitor cells which can be isolated and maintained in vitro can potentially be used in accordance with this embodiment of the present invention (see e.g. PCT Publication WO 94/08598; Stemple and Anderson, Cell 71:973-985 (1992); Rheinwald, Meth. Cell Bio. 21 A:229 (1980); and Pittelkow and Scott, Mayo Clinic Proc. 61 :771 (1986)). [429] In a specific embodiment, the nucleic acid to be introduced for purposes of gene therapy comprises an inducible promoter operably linked to the coding region, such that expression of the nucleic acid is controllable by controlling the presence or absence of the appropriate inducer of transcription. Demonstration of Therapeutic or Prophylactic Activity [430] The compounds or pharmaceutical compositions of the invention are preferably tested in vitro, and then in vivo for the desired therapeutic or prophylactic activity, prior to use in humans. For example, in vitro assays to demonstrate the therapeutic or prophylactic utility of a compound or pharmaceutical composition include, the effect of a compound on a cell line or a patient tissue sample. The effect of the compound or composition on the cell line and/or tissue sample can be determined utilizing techniques known to those of skill in the art including, but not limited to, rosette formation assays and cell lysis assays. In accordance with the invention, in vitro assays wliich can be used to determine whether administration of a specific compound is indicated, include in vitro cell culture assays in which a patient tissue sample is grown in culture, and exposed to or otherwise administered a compound, and the effect of such compound upon the tissue sample is observed. Therapeutic/Prophylactic Administration and Composition [431] The invention provides methods of treatment, inhibition and prophylaxis by administration to a subject of an effective amount of a compound or pharmaceutical composition of the invention, preferably a polypeptide or antibody of the invention, hi a preferred aspect, the compound is substantially purified (e.g., substantially free from substances that limit its effect or produce undesired side-effects). The subject is preferably an animal, including but not limited to animals such as cows, pigs, horses, chickens, cats, dogs, etc., and is preferably a mammal, and most preferably human. [432] Formulations and methods of administration that can be employed when the compound comprises a nucleic acid or an immunoglobulin are described above; additional appropriate formulations and routes of administration can be selected from among those described herein below. [433] Various delivery systems are known and can be used to administer a compound of the invention, e.g., encapsulation in liposomes, microparticles, microcapsules, recombinant cells capable of expressing the compound, receptor-mediated endocytosis (see, e.g., Wu and Wu, J. Biol. Chem. 262:4429-4432 (1987)), construction of a nucleic acid as part of a retroviral or other vector, etc. Methods of introduction include but are not limited to intradermal, intramuscular, intraperitoneal, intravenous, subcutaneous, intranasal, epidural, and oral routes. The compounds or compositions may be administered by any convenient route, for example by infusion or bolus injection, by absorption through epithelial or mucocutaneous linings (e.g., oral mucosa, rectal and intestinal mucosa, etc.) and may be administered together with other biologically active agents. Administration can be systemic or local, hi addition, it may be desirable to introduce the pharmaceutical compounds or compositions of the invention into the central nervous system by any suitable route, including intraventricular and intrathecal injection; intraventricular injection may be facilitated by an intraventricular catheter, for example, attached to a reservoir, such as an Ommaya reservoir. Pulmonary administration can also be employed, e.g., by use of an inhaler or nebulizer, and formulation with an aerosolizing agent. [434] In a specific embodiment, it may be desirable to administer the pharmaceutical compounds or compositions ofthe invention locally to the area in need of treatment; this may be achieved by, for example, and not by way of limitation, local infusion during surgery, topical application, e.g., in conjunction with a wound dressing after surgery, by injection, by means of a catheter, by means of a suppository, or by means of an implant, said implant being of a porous, non-porous, or gelatinous material, including membranes, such as sialastic membranes, or fibers. Preferably, when administering a protein, including an antibody, of the invention, care must be taken to use materials to which the protein does not absorb. [435] hi another embodiment, the compound or composition can be delivered in a vesicle, in particular a liposome (see Langer, Science 2493527-1533 (1990); Treat et al., in Liposomes in the Therapy of Infectious Disease and Cancer, Lopez-Berestein and Fidler (eds.), Liss, New York, pp. 353- 365 (1989); Lopez-Berestein, ibid., pp. 317-327; see generally ibid.) [436] In yet another embodiment, the compound or composition can be delivered in a controlled release system. In one embodiment, a pump may be used (see Langer, supra; Sefton, CRC Crit. Ref. Biomed. Eng. 14:201 (1987); Buchwald et al., Surgery 88:507 (1980); Saudek et al., N. Engl. J. Med. 321:574 (1989)). hi another embodiment, polymeric materials can be used (see Medical Applications of Controlled Release, Langer and Wise (eds.), CRC Pres., Boca Raton, Florida (1974); Controlled Drug Bioavailability, Drug Product Design and Performance, Smolen and Ball (eds.), Wiley, New York (1984); Ranger and Peppas, J., Macromol. Sci. Rev. Macromol. Chem. 23:61 (1983); see also Levy et al., Science 228:190 (1985); During et al., Ann. Neurol. 25:351 (1989); Howard et al, J.Neurosurg. 71:105 (1989)). hi yet another embodiment, a controlled release system can be placed in proximity of the therapeutic target, i.e., the brain, thus requiring only a fraction of the systemic dose (see, e.g., Goodson, in Medical Applications of Controlled Release, supra, vol. 2, pp. 115-138 (1984)). [437] Other controlled release systems are discussed in the review by Langer (Science 249:1527-1533 (1990)). [438] hi a specific embodiment where the compound of the invention is a nucleic acid encoding a protein, the nucleic acid can be administered in vivo to promote expression of its encoded protein, by constructing it as part of an appropriate nucleic acid expression vector and administering it so that it becomes intracellular, e.g., by use of a retroviral vector (see U.S. Patent No. 4,980,286), or by direct injection, or by use of microparticle bombardment (e.g., a gene gun; Biolistic, Dupont), or coating with lipids or cell-surface receptors or transfecting agents, or by administering it in linkage to a homeobox- like peptide which is known to enter the nucleus (see e.g., Joliot et al., Proc. Natl. Acad. Sci. USA 883864-1868 (1991)), etc. Alternatively, a nucleic acid can be introduced intracellularly and incorporated within host cell DNA for expression, by homologous recombination. [439] The present invention also provides pharmaceutical compositions. Such compositions comprise a therapeutically effective amount of a compound, and a pharmaceutically acceptable carrier. In a specific embodiment, the term "pharmaceutically acceptable" means approved by a regulatory agency of the Federal or a state government or listed in the U.S. Pharmacopeia or other generally recognized pharmacopeia for use in animals, and more particularly in humans. The term "carrier" refers to a diluent, adjuvant, excipient, or vehicle with which the therapeutic is administered. Such pharmaceutical carriers can be sterile liquids, such as water and oils, including those of petroleum, animal, vegetable or synthetic origin, such as peanut oil, soybean oil, mineral oil, sesame oil and the like. Water is a preferred carrier when the pharmaceutical composition is administered intravenously. Saline solutions and aqueous dextrose and glycerol solutions can also be employed as liquid carriers, particularly for injectable solutions. Suitable pharmaceutical excipients include starch, glucose, lactose, sucrose, gelatin, malt, rice, flour, chalk, silica gel, sodium stearate, glycerol monostearate, talc, sodium chloride, dried skim milk, glycerol, propylene, glycol, water, ethanol and the like. The composition, if desired, can also contain minor amounts of wetting or emulsifying agents, or pH buffering agents. These compositions can take the form of solutions, suspensions, emulsion, tablets, pills, capsules, powders, sustained-release formulations and the like. The composition can be formulated as a suppository, with traditional binders and carriers such as triglycerides. Oral formulation can include standard carriers such as pharmaceutical grades of mannitol, lactose, starch, magnesium stearate, sodium saccharine, cellulose, magnesium carbonate, etc. Examples of suitable pharmaceutical carriers are described in "Remington's Pharmaceutical Sciences" by E.W. Martin. Such compositions will contain a therapeutically effective amount of the compound, preferably in purified form, together with a suitable amount of carrier so as to provide the form for proper administration to the patient. The formulation should suit the mode of administration. [440] hi a preferred embodiment, the composition is formulated in accordance with routine procedures as a pharmaceutical composition adapted for intravenous administration to human beings. Typically, compositions for intravenous administration are solutions in sterile isotonic aqueous buffer. Where necessary, the composition may also include a solubilizing agent and a local anesthetic such as lignocaine to ease pain at the site of the injection. Generally, the ingredients are supplied either separately or mixed together in unit dosage form, for example, as a dry lyophilized powder or water free concentrate in a hermetically sealed container such as an ampoule or sachette indicating the quantity of active agent. Where the composition is to be administered by infusion, it can be dispensed with an infusion bottle containing sterile pharmaceutical grade water or saline. Where the composition is administered by injection, an ampoule of sterile water for injection or saline can be provided so that the ingredients may be mixed prior to administration. [441] The compounds of the invention can be formulated as neutral or salt forms. Pharmaceutically acceptable salts include those formed with anions such as those derived from hydrochloric, phosphoric, acetic, oxalic, tartaric acids, etc., and those foπned with cations such as those derived from sodium, potassium, ammonium, calcium, ferric hydroxides, isopropylamine, triethylamine, 2-ethylamino ethanol, histidine, procaine, etc. [442] The amount of the compound of the invention which will be effective in the treatment, inhibition and prevention of a disease or disorder associated with aberrant expression and/or activity of a polypeptide of the invention can be determined by standard clinical techniques, hi addition, in vitro assays may optionally be employed to help identify optimal dosage ranges. The precise dose to be employed in the formulation will also depend on the route of administration, and the seriousness of the disease or disorder, and should be decided according to the judgment of the practitioner and each patient's circumstances. Effective doses may be extrapolated from dose-response curves derived from in vitro or animal model test systems. [443] For antibodies, the dosage administered to a patient is typically 0.1 mg/kg to 100 mg/kg of the patient's body weight. Preferably, the dosage admimstered to a patient is between 0.1 mg/kg and 20 mg/kg ofthe patient's body weight, more preferably 1 mg/kg to 10 mg/kg of the patient's body weight. Generally, human antibodies have a longer half-life within the human body than antibodies from other species due to the immune response to the foreign polypeptides. Thus, lower dosages of human antibodies and less frequent administration is often possible. Further, the dosage and frequency of administration of antibodies of the invention may be reduced by enhancing uptake and tissue penetration (e.g., into the brain) ofthe antibodies by modifications such as, for example, lipidation. [444] The invention also provides a pharmaceutical pack or kit comprising one or more containers filled with one or more of the ingredients of the pharmaceutical compositions of the invention. Optionally associated with such container(s) can be a notice in the form prescribed by a governmental agency regulating the manufacture, use or sale of pharmaceuticals or biological products, which notice reflects approval by the agency of manufacture, use or sale for human administration. Diagnosis and Imaging [445] Labeled antibodies, and derivatives and analogs thereof, which specifically bind to a polypeptide of interest can be used for diagnostic purposes to detect, diagnose, or monitor diseases, disorders, and/or conditions associated with the aberrant expression and/or activity of a polypeptide of the invention. The invention provides for the detection of aberrant expression of a polypeptide of interest, comprising (a) assaying the expression of the polypeptide of interest in cells or body fluid of an individual using one or more antibodies specific to the polypeptide interest and (b) comparing the level of gene expression with a standard gene expression level, whereby an increase or decrease in the assayed polypeptide gene expression level compared to the standard expression level is indicative of aberrant expression. [446] The invention provides a diagnostic assay for diagnosing a disorder, comprising (a) assaying the expression of the polypeptide of interest in cells or body fluid of an individual using one or more antibodies specific to the polypeptide interest and (b) comparing the level of gene expression with a standard gene expression level, whereby an increase or decrease in the assayed polypeptide gene expression level compared to the standard expression level is indicative of a particular disorder. With respect to cancer, the presence of a relatively high amount of transcript in biopsied tissue from an individual may indicate a predisposition for the development of the disease, or may provide a means for detecting the disease prior to the appearance of actual clinical symptoms. A more definitive diagnosis of this type may allow health professionals to employ preventative measures or aggressive treatment earlier thereby preventing the development or further progression ofthe cancer. [447] Antibodies of the invention can be used to assay protein levels in a biological sample using classical immunohistological methods known to those of skill in the art (e.g., see Jalkanen, et al., J. Cell. Biol. 101:976-985 (1985); Jalkanen, et al., J. Cell . Biol. 105:3087-3096 (1987)). Other antibody-based methods useful for detecting protein gene expression include immunoassays, such as the enzyme linked immunosorbent assay (ELISA) and the radioimmunoassay (RIA). Suitable antibody assay labels are known in the art and include enzyme labels, such as, glucose oxidase; radioisotopes, such as iodine (1251, 1211), carbon (14C), sulfur (35S), tritium (3H), indium (112hϊ), and technetium (99Tc); luminescent labels, such as luminol; and fluorescent labels, such as fluorescein and rhodamine, and biotin. [448] One aspect of the invention is the detection and diagnosis of a disease or disorder associated with aberrant expression of a polypeptide of interest in an animal, preferably a mammal and most preferably a human, hi one embodiment, diagnosis comprises: a) administering (for example, parenterally, subcutaneously, or intraperitoneally) to a subject an effective amount of a labeled molecule which specifically binds to the polypeptide of interest; b) waiting for a time interval following the administering for permitting the labeled molecule to preferentially concentrate at sites in the subject where the polypeptide is expressed (and for unbound labeled molecule to be cleared to background level); c) determining background level; and d) detecting the labeled molecule in the subject, such that detection of labeled molecule above the background level indicates that the subject has a particular disease or disorder associated with aberrant expression of the polypeptide of interest. Background level can be determined by various methods including, comparing the amount of labeled molecule detected to a standard value previously determined for a particular system. [449] It will be understood in the art that the size of the subject and the imaging system used will determine the quantity of imaging moiety needed to produce diagnostic images. In the case of a radioisotope moiety, for a human subject, the quantity of radioactivity injected will normally range from about 5 to 20 millicuries of 99mTc. The labeled antibody or antibody fragment will then preferentially accumulate at the location of cells which contain the specific protein. hi vivo tumor imaging is described in S.W. Burchiel et al., "Immunopharmacokinetics of Radiolabeled Antibodies and Their Fragments." (Chapter 13 in Tumor Imaging: The Radiochemical Detection of Cancer, S.W. Burchiel and B. A. Rhodes, eds., Masson Publishing Inc. (1982). [450] Depending on several variables, including the type of label used and the mode of administration, the time interval following the administration for permitting the labeled molecule to preferentially concentrate at sites in the subject and for unbound labeled molecule to be cleared to background level is 6 to 48 hours or 6 to 24 hours or 6 to 12 hours. In another embodiment the time interval following administration is 5 to 20 days or 5 to 10 days. [451] In an embodiment, monitoring ofthe disease or disorder is carried out by repeating the method for diagnosing the disease or disease, for example, one month after initial diagnosis, six months after initial diagnosis, one year after initial diagnosis, etc. [452] Presence of the labeled molecule can be detected in the patient using methods known in the art for in vivo scanning. These methods depend upon the type of label used. Skilled artisans will be able to determine the appropriate method for detecting a particular label. Methods and devices that may be used in the diagnostic methods of the invention include, but are not limited to, computed tomography (CT), whole body scan such as position emission tomography (PET), magnetic resonance imaging (MRT), and sonography. [453] In a specific embodiment, the molecule is labeled with a radioisotope and is detected in the patient using a radiation responsive surgical instrument (Thurston et al., U.S. Patent No. 5,441,050). In another embodiment, the molecule is labeled with a fluorescent compound and is detected in the patient using a fluorescence responsive scanning instrument. In another embodiment, the molecule is labeled with a positron emitting metal and is detected in the patent using positron emission-tomography, hi yet another embodiment, the molecule is labeled with a paramagnetic label and is detected in a patient using magnetic resonance imaging (MRI). Kits [454] The present invention provides kits that can be used in the above methods, hi one embodiment, a kit comprises an antibody of the invention, preferably a purified antibody, in one or more containers. In a specific embodiment, the kits ofthe present invention contain a substantially isolated polypeptide comprising an epitope which is specifically immunoreactive with an antibody included in the kit. Preferably, the kits of the present invention further comprise a control antibody which does not react with the polypeptide of interest. In another specific embodiment, the kits of the present invention contain a means for detecting the binding of an antibody to a polypeptide of interest (e.g., the antibody may be conjugated to a detectable substrate such as a fluorescent compound, an enzymatic substrate, a radioactive compound or a luminescent compound, or a second antibody wliich recognizes the first antibody may be conjugated to a detectable substrate). [455] In another specific embodiment of the present invention, the kit is a diagnostic kit for use in screening serum containing antibodies specific against proliferative and/or cancerous polynucleotides and polypeptides. Such a kit may include a control antibody that does not react with the polypeptide of interest. Such a kit may include a substantially isolated polypeptide antigen comprising an epitope which is specifically immunoreactive with at least one anti-polypeptide antigen antibody. Further, such a kit includes means for detecting the binding of said antibody to the antigen (e.g., the antibody may be conjugated to a fluorescent compound such as fluorescein or rhodamine wliich can be detected by flow cytometry). In specific embodiments, the kit may include a recombinantly produced or chemically synthesized polypeptide antigen. The polypeptide antigen ofthe kit may also be attached to a solid support. [456] In a more specific embodiment the detecting means of the above-described kit includes a solid support to which said polypeptide antigen is attached. Such a kit may also include a non-attached reporter-labeled anti-human antibody, hi this embodiment, binding of the antibody to the polypeptide antigen can be detected by binding of the said reporter- labeled antibody. [457] hi an additional embodiment, the invention includes a diagnostic kit for use in screening serum containing antigens of the polypeptide of the invention. The diagnostic kit includes a substantially isolated antibody specifically immunoreactive with polypeptide or polynucleotide antigens, and means for detecting the binding of the polynucleotide or polypeptide antigen to the antibody, hi one embodiment, the antibody is attached to a solid support, hi a specific embodiment, the antibody may be a monoclonal antibody. The detecting means of the kit may include a second, labeled monoclonal antibody. Alternatively, or in addition, the detecting means may include a labeled, competing antigen. [458] In one diagnostic configuration, test serum is reacted with a solid phase reagent having a surface-bound antigen obtained by the methods of the present invention. After binding with specific antigen antibody to the reagent and removing unbound serum components by washing, the reagent is reacted with reporter-labeled anti-human antibody to bind reporter to the reagent in proportion to the amount of bound anti-antigen antibody on the solid support. The reagent is again washed to remove unbound labeled antibody, and the amount of reporter associated with the reagent is determined. Typically, the reporter is an enzyme which is detected by incubating the solid phase in the presence of a suitable fluorometric, luminescent or colorimetric substrate (Sigma, St. Louis, MO). [459] The solid surface reagent in the above assay is prepared by known techniques for attaching protein material to solid support material, such as polymeric beads, dip sticks, 96- well plate or filter material. These attachment methods generally include non-specific adsorption of the protein to the support or covalent attachment of the protein, typically through a free amine group, to a chemically reactive group on the solid support, such as an activated carboxyl, hydroxyl, or aldehyde group. Alternatively, streptavidin coated plates can be used in conjunction with biotinylated antigen(s). [460] Thus, the invention provides an assay system or kit for carrying out this diagnostic method. The kit generally includes a support with surface- bound recombinant antigens, and a reporter-labeled anti-human antibody for detecting surface-bound anti-antigen antibody. Uses ofthe Polynucleotides [461] Each of the polynucleotides identified herein can be used in numerous ways as reagents. The following description should be considered exemplary and utilizes known techniques. [462] The polynucleotides of the present invention are useful for chromosome identification. There exists an ongoing need to identify new chromosome markers, since few chromosome marking reagents, based on actual sequence data (repeat polymorphisms), are presently available. Each sequence is specifically targeted to and can hybridize with a particular location on an individual human chromosome, thus each polynucleotide of the present invention can routinely be used as a chromosome marker using techniques known in the art. [463] Briefly, sequences can be mapped to chromosomes by preparing PCR primers (preferably at least 15 bp (e.g., 15-25 bp) from the sequences shown in SEQ ED NO:X. Primers can optionally be selected using computer analysis so that primers do not span more than one predicted exon in the genomic DNA. These primers are then used for PCR screening of somatic cell hybrids containing individual human chromosomes. Only those hybrids containing the human gene corresponding to SEQ DD NO:X will yield an amplified fragment. [464] Similarly, somatic hybrids provide a rapid method of PCR mapping the polynucleotides to particular chromosomes. Three or more clones can be assigned per day using a single thermal cycler. Moreover, sublocalization of the polynucleotides can be achieved with panels of specific chromosome fragments. Other gene mapping strategies that can be used include in situ hybridization, prescreening with labeled flow-sorted chromosomes, preselection by hybridization to construct chromosome specific-cDNA libraries, and computer mapping techniques (See, e.g., Shuler, Trends Biotechnol 16:456-459 (1998) which is hereby incorporated by reference in its entirety). [465] Precise chromosomal location of the polynucleotides can also be achieved using fluorescence in situ hybridization (FISH) of a metaphase chromosomal spread. This technique uses polynucleotides as short as 500 or 600 bases; however, polynucleotides 2,000- 4,000 bp are preferred. For a review of this technique, see Verma et al., "Human Chromosomes: a Manual of Basic Techniques," Pergamon Press, New York (1988). [466] For chromosome mapping, the polynucleotides can be used individually (to mark a single chromosome or a single site on that chromosome) or in panels (for marking multiple sites and/or multiple chromosomes). [467] Thus, the present invention also provides a method for chromosomal localization which involves (a) preparing PCR primers from the polynucleotide sequences in Table 1 and SEQ DD NO:X and (b) screening somatic cell hybrids containing individual chromosomes. [468] The polynucleotides ofthe present invention would likewise be useful for radiation hybrid mapping, HAPPY mapping, and long range restriction mapping. For a review of these techniques and others known in the art, see, e.g. Dear, "Genome Mapping: A Practical Approach," IRL Press at Oxford University Press, London (1997); Aydin, J. Mol. Med. 77:691-694 (1999); Hacia et al, Mol. Psychiatry 3:483-492 (1998); Herrick et al., Chromosome Res. 7:409-423 (1999); Hamilton et al., Methods Cell Biol. 62:265-280 (2000); and/or Ott, J. Hered. 90:68-70 (1999) each of which is hereby incorporated by reference in its entirety. [469] Once a polynucleotide has been mapped to a precise chromosomal location, the physical position of the polynucleotide can be used in linkage analysis. Linkage analysis establishes coinheritance between a chromosomal location and presentation of a particular disease. (Disease mapping data are found, for example, in V. McKusick, Mendelian Inheritance in Man (available on line through Johns Hopkins University Welch Medical Library)). Assuming 1 megabase mapping resolution and one gene per 20 kb, a cDNA precisely localized to a chromosomal region associated with the disease could be one of 50- 500 potential causative genes. [470] Thus, once coinheritance is established, differences in a polynucleotide of the invention and the corresponding gene between affected and unaffected individuals can be examined. First, visible structural alterations in the chromosomes, such as deletions or translocations, are examined in chromosome spreads or by PCR. If no structural alterations exist, the presence of point mutations are ascertained. Mutations observed in some or all affected individuals, but not in normal individuals, indicates that the mutation may cause the disease. However, complete sequencing ofthe polypeptide and the corresponding gene from several normal individuals is required to distinguish the mutation from a polymorphism. If a new polymorphism is identified, this polymorphic polypeptide can be used for further linkage analysis. [471] Furthermore, increased or decreased expression of the gene in affected individuals as compared to unaffected individuals can be assessed using the polynucleotides of the invention. Any of these alterations (altered expression, chromosomal rearrangement, or mutation) can be used as a diagnostic or prognostic marker. [472] Thus, the invention also provides a diagnostic method useful during diagnosis of a disorder, involving measuring the expression level of polynucleotides ofthe present invention in cells or body fluid from an individual and comparing the measured gene expression level with a standard level of polynucleotide expression level, whereby an increase or decrease in the gene expression level compared to the standard is indicative of a disorder. [473] In still another embodiment, the invention includes a kit for analyzing samples for the presence of proliferative and/or cancerous polynucleotides derived from a test subject, ha a general embodiment, the kit includes at least one polynucleotide probe containing a nucleotide sequence that will specifically hybridize with a polynucleotide of the invention and a suitable container, hi a specific embodiment, the kit includes two polynucleotide probes defining an internal region of the polynucleotide of the invention, where each probe has one strand containing a 31 'mer-end internal to the region. In a further embodiment, the probes may be useful as primers for polymerase chain reaction amplification. [474] Where a diagnosis of a related disorder, including, for example, diagnosis of a tumor, has already been made according to conventional methods, the present invention is useful as a prognostic indicator, whereby patients exhibiting enhanced or depressed polynucleotide of the invention expression will experience a worse clinical outcome relative to patients expressing the gene at a level nearer the standard level. [475] By "measuring the expression level of polynucleotides of the invention" is intended qualitatively or quantitatively measuring or estimating the level of the polypeptide ofthe invention or the level ofthe mRNA encoding the polypeptide ofthe invention in a first biological sample either directly (e.g., by determining or estimating absolute protein level or mRNA level) or relatively (e.g., by comparing to the polypeptide level or mRNA level in a second biological sample). Preferably, the polypeptide level or mRNA level in the first biological sample is measured or estimated and compared to a standard polypeptide level or mRNA level, the standard being taken from a second biological sample obtained from an individual not having the related disorder or being determined by averaging levels from a population of individuals not having a related disorder. As will be appreciated in the art, once a standard polypeptide level or mRNA level is known, it can be used repeatedly as a standard for comparison. [476] By "biological sample" is intended any biological sample obtained from an individual, body fluid, cell line, tissue culture, or other source which contains polypeptide of the present invention or the corresponding mRNA. As indicated, biological samples include body fluids (such as semen, lymph, sera, plasma, urine, synovial fluid and spinal fluid) which contain the polypeptide of the present invention, and tissue sources found to express the polypeptide of the present invention. Methods for obtaining tissue biopsies and body fluids from mammals are well known in the art. Where the biological sample is to include mRNA, a tissue biopsy is the preferred source. [477] The method(s) provided above may preferrably be applied in a diagnostic method and/or kits in which polynucleotides and/or polypeptides of the invention are attached to a solid support. In one exemplary method, the support may be a "gene chip" or a "biological chip" as described in US Patents 5,837,832, 5,874,219, and 5,856,174. Further, such a gene chip with polynucleotides of the invention attached may be used to identify polymoφhisms between the isolated polynucleotide sequences ofthe invention, with polynucleotides isolated from a test subject. The knowledge of such polymorphisms (i.e. their location, as well as, their existence) would be beneficial in identifying disease loci for many disorders, such as for example, in neural disorders, immune system disorders, muscular disorders, reproductive disorders, gastrointestinal disorders, pulmonary disorders, cardiovascular disorders, renal disorders, proliferative disorders, and/or cancerous diseases and conditions. Such a method is described in US Patents 5,858,659 and 5,856,104. The US Patents referenced supra are hereby incorporated by reference in their entirety herein. [478] The present invention encompasses polynucleotides of the present invention that are chemically synthesized, or reproduced as peptide nucleic acids (PNA), or according to other methods known in the art. The use of PNAs would serve as the preferred form if the polynucleotides of the invention are incorporated onto a solid support, or gene chip. For the purposes of the present invention, a peptide nucleic acid (PNA) is a polyamide type of DNA analog and the monomeric units for adenine, guanine, thymine and cytosine are available commercially (Perceptive Biosystems). Certain components of DNA, such as phosphorus, phosphorus oxides, or deoxyribose derivatives, are not present in PNAs. As disclosed by P. E. Nielsen, M. Egholm, R. H. Berg and O. Buchardt, Science 254, 1497 (1991); and M. Egholm, O. Buchardt, L.Christensen, C. Behrens, S. M. Freier, D. A. Driver, R. H. Berg, S. K. Kim, B. Norden, and P. E. Nielsen, Nature 365, 666 (1993), PNAs bind specifically and tightly to complementary DNA strands and are not degraded by nucleases. In fact, PNA binds more strongly to DNA than DNA itself does. This is probably because there is no electrostatic repulsion between the two strands, and also the polyamide backbone is more flexible. Because of this, PNA/DNA duplexes bind under a wider range of stringency conditions than DNA/DNA duplexes, making it easier to perform multiplex hybridization. Smaller probes can be used than with DNA due to the strong binding. In addition, it is more likely that single base mismatches can be determined with PNA/DNA hybridization because a single mismatch in a PNA/DNA 15-mer lowers the melting point (T.sub.m) by 8°-20° C, vs. 4°-16° C for the DNA/DNA 15-mer duplex. Also, the absence of charge groups in PNA means that hybridization can be done at low ionic strengths and reduce possible interference by salt during the analysis. [479] The present invention have uses which include, but are not limited to, detecting cancer in mammals, hi particular the invention is useful during diagnosis of pathological cell proliferative neoplasias which include, but are not limited to: acute myelogenous leukemias including acute monocytic leukemia, acute myeloblastic leukemia, acute promyelocytic leukemia, acute myelomonocytic leukemia, acute erythroleukemia, acute megakaryocytic leukemia, and acute undifferentiated leukemia, etc.; and chronic myelogenous leukemias including chronic myelomonocytic leukemia, chronic granulocytic leukemia, etc. Preferred mammals include monkeys, apes, cats, dogs, cows, pigs, horses, rabbits and humans. Particularly preferred are humans. [480] Pathological cell proliferative disorders are often associated with inappropriate activation of proto-oncogenes. (Gelmann, E. P. et al., "The Etiology of Acute Leukemia: Molecular Genetics and Viral Oncology," in Neoplastic Diseases of the Blood, Vol 1., Wiernik, P. H. et al. eds., 161-182 (1985)). Neoplasias are now believed to result from the qualitative alteration of a normal cellular gene product, or from the quantitative modification of gene expression by insertion into the chromosome of a viral sequence, by chromosomal translocation of a gene to a more actively transcribed region, or by some other mechanism. (Gelmann et al., supra) It is likely that mutated or altered expression of specific genes is involved in the pathogenesis of some leukemias, among other tissues and cell types. (Gelmann et al., supra) Indeed, the human counterparts of the oncogenes involved in some animal neoplasias have been amplified or translocated in some cases of human leukemia and carcinoma. (Gelmann et al., supra) [481] For example, c-myc expression is. highly amplified in the non-lymphocytic leukemia cell line HL-60. When HL-60 cells are chemically induced to stop proliferation, the level of c-myc is found to be downregulated. (International Publication Number WO 91/15580). However, it has been shown that exposure of HL-60 cells to a DNA construct that is complementary to the 5' end of c-myc or c-myb blocks translation of the corresponding mRNAs which downregulates expression ofthe c-myc or c-myb proteins and causes arrest of cell proliferation and differentiation of the treated cells. (International Publication Number WO 91/15580; Wickstrom et al, Proc. Natl. Acad. Sci. 85:1028 (1988); Anfossi et al., Proc. Natl. Acad. Sci. 86:3379 (1989)). However, the skilled artisan would appreciate the present invention's usefulness is not be limited to treatment of proliferative disorders of hematopoietic cells and tissues, in light of the numerous cells and cell types of varying origins which are known to exhibit proliferative phenotypes. [482] In addition to the foregoing, a polynucleotide of the present invention can be used to control gene expression through triple helix formation or through antisense DNA or RNA. Antisense techniques are discussed, for example, in Okano, J. Neurochem. 56: 560 (1991); "Oligodeoxynucleotides as Antisense Inhibitors of Gene Expression, CRC Press, Boca Raton, FL (1988). Triple helix formation is discussed in, for instance Lee et al., Nucleic Acids Research 6: 3073 (1979); Cooney et al., Science 241: 456 (1988); and Dervan et al., Science 251: 1360 (1991). Both methods rely on binding of the polynucleotide to a complementary DNA or RNA. For these techniques, preferred polynucleotides are usually oligonucleotides 20 to 40 bases in length and complementary to either the region of the gene involved in transcription (triple helix - see Lee et al., Nucl. Acids Res. 6:3073 (1979); Cooney et al, Science 241:456 (1988); and Dervan et al., Science 2513360 (1991) ) or to the mRNA itself (antisense - Okano, J. Neurochem. 56:560 (1991); Oligodeoxy-nucleotides as Antisense Inhibitors of Gene Expression, CRC Press, Boca Raton, FL (1988)). Triple helix formation optimally results in a shut-off of RNA transcription from DNA, while antisense RNA hybridization blocks translation of an mRNA molecule into polypeptide. The oligonucleotide described above can also be delivered to cells such that the antisense RNA or DNA may be expressed in vivo to inhibit production of polypeptide ofthe present invention antigens. Both techniques are effective in model systems, and the information disclosed herein can be used to design antisense or triple helix polynucleotides in an effort to treat disease, and in particular, for the treatment of proliferative diseases and/or conditions. [483] Polynucleotides of the present invention are also useful in gene therapy. One goal of gene therapy is to insert a normal gene into an organism having a defective gene, in an effort to correct the genetic defect. The polynucleotides disclosed in the present invention offer a means of targeting such genetic defects in a highly accurate manner. Another goal is to insert a new gene that was not present in the host genome, thereby producing a new trait in the host cell. [484] The polynucleotides are also useful for identifying individuals from minute biological samples. The United States military, for example, is considering the use of restriction fragment length polymorphism (RFLP) for identification of its personnel. In this technique, an individual's genomic DNA is digested with one or more restriction enzymes, and probed on a Southern blot to yield unique bands for identifying personnel. This method does not suffer from the current limitations of "Dog Tags" which can be lost, switched, or stolen, making positive identification difficult. The polynucleotides of the present invention can be used as additional DNA markers for RFLP. [485] The polynucleotides of the present invention can also be used as an alternative to RFLP, by determining the actual base-by-base DNA sequence of selected portions of an individual's genome. These sequences can be used to prepare PCR primers for amplifying and isolating such selected DNA, which can then be sequenced. Using this technique, individuals can be identified because each individual will have a unique set of DNA sequences. Once an unique ED database is established for an individual, positive identification of that individual, living or dead, can be made from extremely small tissue samples. [486] Forensic biology also benefits from using DNA-based identification techniques as disclosed herein. DNA sequences taken from very small biological samples such as tissues, e.g., hair or skin, or body fluids, e.g., blood, saliva, semen, synovial fluid, amniotic fluid, breast milk, lymph, pulmonary sputum or surfactant, urine, fecal matter, etc., can be amplified using PCR. hi one prior art technique, gene sequences amplified from polymoφhic loci, such as DQa class It HLA gene, are used in forensic biology to identify individuals. (Erlich, H., PCR Technology, Freeman and Co. (1992)). Once these specific polymoφhic loci are amplified, they are digested with one or more restriction enzymes, yielding an identifying set of bands on a Southern blot probed with DNA corresponding to the DQa class It HLA gene. Similarly, polynucleotides of the present invention can be used as polymoφhic markers for forensic puφoses. [487] There is also a need for reagents capable of identifying the source of a particular tissue. Such need arises, for example, in forensics when presented with tissue of unknown origin. Appropriate reagents can comprise, for example, DNA probes or primers prepared from the sequences of the present invention. Panels of such reagents can identify tissue by species and/or by organ type. In a similar fashion, these reagents can be used to screen tissue cultures for contamination. [488] The polynucleotides of the present invention are also useful as hybridization probes for differential identification of the tissue(s) or cell type(s) present in a biological sample. Similarly, polypeptides and antibodies directed to polypeptides of the present invention are useful to provide immunological probes for differential identification of the tissue(s) (e.g., immunohistochemistry assays) or cell type(s) (e.g., immunocytochemistry assays). In addition, for a number of disorders of the above tissues or cells, significantly higher or lower levels of gene expression of the polynucleotides/polypeptides of the present invention may be detected in certain tissues (e.g., tissues expressing polypeptides and/or polynucleotides of the present invention and/or cancerous and/or wounded tissues) or bodily fluids (e.g., serum, plasma, urine, synovial fluid or spinal fluid) taken from an individual having such a disorder, relative to a "standard" gene expression level, i.e., the expression level in healthy tissue from an individual not having the disorder. [489] Thus, the invention provides a diagnostic method of a disorder, which involves: (a) assaying gene expression level in cells or body fluid of an individual; (b) comparing the gene expression level with a standard gene expression level, whereby an increase or decrease in the assayed gene expression level compared to the standard expression level is indicative of a disorder. [490] In the very least, the polynucleotides of the present invention can be used as molecular weight markers on Southern gels, as diagnostic probes for the presence of a specific mRNA in a particular cell type, as a probe to "subtract-out" known sequences in the process of discovering novel polynucleotides, for selecting and making oligomers for attachment to a "gene chip" or other support, to raise anti-DNA antibodies using DNA immunization techniques, and as an antigen to elicit an immune response. Uses ofthe Polypeptides [491] Each of the polypeptides identified herein can be used in numerous ways. The following description should be considered exemplary and utilizes known techniques. [492] Polypeptides and antibodies directed to polypeptides of the present invention are useful to provide immunological probes for differential identification of the tissue(s) (e.g., immunohistochemistry assays such as, for example, ABC immunoperoxidase (Hsu et al., J. Histochem. Cytochem. 29:577-580 (1981)) or cell type(s) (e.g., immunocytochemistry assays). [493] Antibodies can be used to assay levels of polypeptides encoded by polynucleotides ofthe invention in a biological sample using classical immunohistological methods known to those of skill in the art (e.g., see Jalkanen, et al., J. Cell. Biol. 101:976-985 (1985); Jalkanen, et al., J. Cell. Biol. 105:3087-3096 (1987)). Other antibody-based methods useful for detecting protein gene expression include immunoassays, such as the enzyme linked immunosorbent assay (ELISA) and the radioimmunoassay (RIA). Suitable antibody assay labels are known in the art and include enzyme labels, such as, glucose oxidase; radioisotopes, such as iodine ( 131 I, 125 I, 123 I, 121 I), carbon ( 14 C), sulfur ( 35 S), tritium ( 3 H), indium ( 115m frι, 113m In, 112 hι, m hϊ), and technetium ( 99 Tc, 99m Tc), thallium ( 201 Ti), gallium ( 68 Ga, 67 Ga), palladium ( 103 Pd), molybdenum ( 99 Mo), xenon ( 133 Xe), fluorine ( 18 F), 153 Sm, 177 Lu, 159 Gd, 149 Pm, 140 La, 175 Yb, 16 1Ho, 90 Y, 47 Sc, 186 Re, 188 Re, 142 Pr, 105 Rh, 97 Ru; luminescent labels, such as luminol; and fluorescent labels, such as fluorescein and rhodamine, and biotin. [494] In addition to assaying levels of polypeptide ofthe present invention in a biological sample, proteins can also be detected in vivo by imaging. Antibody labels or markers for in vivo imaging of protein include those detectable by X-radiography, NMR or ESR. For X- radiography, suitable labels include radioisotopes such as barium or cesium, which emit detectable radiation but are not overtly harmful to the subject. Suitable markers for NMR and ESR include those with a detectable characteristic spin, such as deuterium, which may be incoφorated into the antibody by labeling of nutrients for the relevant hybridoma. [495] A protein-specific antibody or antibody fragment which has been labeled with an appropriate detectable imaging moiety, such as a radioisotope (for example, 131 I, n2 fri, 99 Tc, ( 131 1, 125 1, 123 1, 121 I), carbon ( 14 C), sulfur ( 35 S), tritium ( 3 J3), indium ( 115m hi, 113m In, 112 In, m frι), and technetium ( 99 Tc, 99m Tc), thallium ( 201 Ti), gallium ( 68 Ga, 67 Ga), palladium ( 103 Pd), molybdenum ( 99 Mo), xenon ( 133 Xe), fluorine ( 18 F, 153 Sm, 177 Lu, 159 Gd, 149 Pm, 140 La, 175 Yb, 166 Ho, 90 Y, 47 Sc, 186 Re, 188 Re, 142 Pr, 105 Rh, 97 Ru), a radio-opaque substance, or a material detectable by nuclear magnetic resonance, is introduced (for example, parenterally, subcutaneously or intraperitoneally) into the mammal to be examined for immune system disorder. It will be understood in the art that the size of the subject and the imaging system used will determine the quantity of imaging moiety needed to produce diagnostic images. In the case of a radioisotope moiety, for a human subject, the quantity of radioactivity injected will normally range from about 5 to 20 millicuries of 99m Tc. The labeled antibody or antibody fragment will then preferentially accumulate at the location of cells which express the polypeptide encoded by a polynucleotide of the invention. In vivo tumor imaging is described in S.W. Burchiel et al., "Immunopharmacokinetics of Radiolabeled Antibodies and Their Fragments" (Chapter 13 in Tumor Imaging: The Radiochemical Detection of Cancer, S.W. Burchiel and B. A. Rhodes, eds., Masson Publishing Inc. (1982)). [496] hi one embodiment, the invention provides a method for the specific delivery of compositions of the invention to cells by administering polypeptides of the invention (e.g., polypeptides encoded by polynucleotides of the invention and/or antibodies) that are associated with heterologous polypeptides or nucleic acids. In one example, the invention provides a method for delivering a therapeutic protein into the targeted cell, hi another example, the invention provides a method for delivering a single stranded nucleic acid (e.g., antisense or ribozymes) or double stranded nucleic acid (e.g., DNA that can integrate into the cell's genome or replicate episomally and that can be transcribed) into the targeted cell. [497] In another embodiment, the invention provides a method for the specific destruction of cells (e.g., the destruction of tumor cells) by administering polypeptides ofthe invention in association with toxins or cytotoxic prodrugs. [498] By "toxin" is meant one or more compounds that bind and activate endogenous cytotoxic effector systems, radioisotopes, holotoxins, modified toxins, catalytic subunits of toxins, or any molecules or enzymes not normally present in or on the surface of a cell that under defined conditions cause the cell's death. Toxins that may be used according to the methods of the invention include, but are not limited to, radioisotopes known in the art, compounds such as, for example, antibodies (or complement fixing containing portions thereof) that bind an inherent or induced endogenous cytotoxic effector system, thymidine kinase, endonuclease, RNAse, alpha toxin, ricin, abrin, Pseudomonas exotoxin A, diphtheria toxin, saporin, momordin, gelonin, pokeweed antiviral protein, alpha-sarcin and cholera toxin. "Toxin" also includes a cytostatic or cytocidal agent, a therapeutic agent or a radioactive metal ion, e.g., alpha-emitters such as, for example, Bi, or other radioisotopes such as, for example, 103 Pd, 133 Xe, 131 I, 68 Ge, 57 Co, 65 Zn, 85 Sr, 32 P, 35 S, 90 Y, 153 Sm, 153 Gd, 169 Yb, 51 Cr, 54 Mn, 75 Se, 113 Sn, 90 Yttrium, 117 Tin, 186 Rhenium, 166 Holmium, and 188 Rhenium; luminescent labels, such as luminol; and fluorescent labels, such as fluorescein and rhodamine, and biotin. [499] Techniques known in the art may be applied to label polypeptides ofthe invention (including antibodies). Such techniques include, but are not limited to, the use of bifunctional conjugating agents (see e.g., U.S. Patent Nos. 5,756,065; 5,714,631; 5,696,239; 5,652,361; 5,505,931; 5,489,425; 5,435,990; 5,428,139; 5,342,604; 5,274,119; 4,994,560; and 5,808,003; the contents of each of which are hereby incoφorated by reference in its entirety). [500] Thus, the invention provides a diagnostic method of a disorder, which involves (a) assaying the expression level of a polypeptide of the present invention in cells or body fluid of an individual; and (b) comparing the assayed polypeptide expression level with a standard polypeptide expression level, whereby an increase or decrease in the assayed polypeptide expression level compared to the standard expression level is indicative of a disorder. With respect to cancer, the presence of a relatively high amount of transcript in biopsied tissue from an individual may indicate a predisposition for the development of the disease, or may provide a means for detecting the disease prior to the appearance of actual clinical symptoms. A more definitive diagnosis of this type may allow health professionals to employ preventative measures or aggressive treatment earlier thereby preventing the development or further progression ofthe cancer. [501] Moreover, polypeptides of the present invention can be used to treat or prevent diseases or conditions such as, for example, neural disorders, immune system disorders, muscular disorders, reproductive disorders, gastrointestinal disorders, pulmonary disorders, cardiovascular disorders, renal disorders, proliferative disorders, and/or cancerous diseases and conditions. For example, patients can be administered a polypeptide of the present invention in an effort to replace absent or decreased levels ofthe polypeptide (e.g., insulin), to supplement absent or decreased levels of a different polypeptide (e.g., hemoglobin S for hemoglobin B, SOD, catalase, DNA repair proteins), to inhibit the activity of a polypeptide (e.g., an oncogene or tumor supressor), to activate the activity of a polypeptide (e.g., by binding to a receptor), to reduce the activity of a membrane bound receptor by competing with it for free ligand (e.g., soluble TNF receptors used in reducing inflammation), or to bring about a desired response (e.g., blood vessel growth inhibition, enhancement of the immune response to proliferative cells or tissues). [502] Similarly, antibodies directed to a polypeptide of the present invention can also be used to treat disease (as described supra, and elsewhere herein). For example, administration of an antibody directed to a polypeptide of the present invention can bind, and/or neutralize the polypeptide, and/or reduce oveφroduction of the polypeptide. Similarly, administration of an antibody can activate the polypeptide, such as by binding to a polypeptide bound to a membrane (receptor). [503] At the very least, the polypeptides of the present invention can be used as molecular weight markers on SDS-PAGE gels or on molecular sieve gel filtration columns using methods well known to those of skill in the art. Polypeptides can also be used to raise antibodies, which in turn are used to measure protein expression from a recombinant cell, as a way of assessing transformation of the host cell. Moreover, the polypeptides of the present invention can be used to test the following biological activities. Diagnostic Assays [504] The compounds of the present invention are useful for diagnosis, treatment, prevention and/or prognosis of various disorders in mammals, preferably humans. Such disorders include, but are not limited to, neural disorders (e.g., as described in "Neural Activity and Neurological Diseases" below), immune system disorders (e.g., as described in "Immune Activity" below), muscular disorders (e.g., as described in "Neural Activity and Neurological Diseases" below), reproductive disorders (e.g., as described in "Anti- Angiogenesis Activity" below), pulmonary disorders (e.g., as described in "Immune Activity" below), cardiovascular disorders (e.g., as described in "Cardiovascular Disorders" below), infectious diseases (e.g., as described in "Infectious Disease" below), proliferative disorders (e.g., as described in "Hypeφroliferative Disorders", "Anti-Angiogenesis Activity" and "Diseases at the Cellular Level" below), and/or cancerous diseases and conditions (e.g., as described in "Hypeφroliferative Disorders", "Anti-Angiogenesis Activity" and "Diseases at the Cellular Level" below). [505] Members ofthe B7-like family of proteins are believed to be involved in biological activities associated with T cell activation, cytokine production, T cell proliferation, and immune system and inflammatory disorders. Accordingly, compositions of the invention (including polynucleotides, polypeptides and antibodies of the invention, and fragments and variants thereof) may be used in the diagnosis, detection and/or treatment of diseases and/or disorders associated with aberrant B7-like activities. [506] In preferred embodiments, compositions of the invention (including polynucleotides, polypeptides and antibodies of the invention, and fragments and variants thereof) may be used in the diagnosis, detection and/or treatment of diseases and/or disorders relating to the immune system in general, and T cell activation specifically (e.g., cytokine production, inflammation, T cell proliferation and T cell proliferative disorders, and/or as described under "Immune Activity", "Hypeφroliferative Disorders" and "Diseases at the Cellular Level" below). [507] hi another embodiment, a polypeptide of the invention, or polynucleotides, antibodies, agonists, or antagonists corresponding to that polypeptide, may be used to diagnose, prognose, prevent, and/or treat disorders associated with the tissue(s) in which the polypeptide of the invention is expressed, including the tissues disclosed in "Polynucleotides and Polypeptides of the Invention", and/or one, two, three, four, five, or more tissues disclosed in Table 10, column 2 (Library Code). [508] For a number of disorders, substantially altered (increased or decreased) levels of B7-like gene expression can be detected in tissues, cells or bodily fluids (e.g., sera, plasma, urine, semen, synovial fluid or spinal fluid) taken from an individual having such a disorder, relative to a "standard" B7-like gene expression level, that is, the B7-like expression level in tissues or bodily fluids from an individual not having the disorder. Thus, the invention provides a diagnostic method useful during diagnosis of a disorder, which involves measuring the expression level of the gene encoding the B7-like polypeptide in tissues, cells or body fluid from an individual and comparing the measured gene expression level with a standard B7-like gene expression level, whereby an increase or decrease in the gene expression level(s) compared to the standard is indicative of a B7-like disorder. These diagnostic assays may be performed in vivo or in vitro, such as, for example, on blood samples, biopsy tissue or autopsy tissue. [509] The present invention is also useful as a prognostic indicator, whereby patients exhibiting enhanced or depressed B7-like gene expression will experience a worse clinical outcome relative to patients expressing the gene at a level nearer the standard level. [510] By "assaying the expression level ofthe gene encoding the B7-like polypeptide" is intended qualitatively or quantitatively measuring or estimating the level of the B7-like polypeptide or the level of the mRNA encoding the B7-like polypeptide in a first biological sample either directly (e.g., by determining or estimating absolute protein level or mRNA level) or relatively (e.g., by comparing to the B7-like polypeptide level or mRNA level in a second biological sample). Preferably, the B7-like polypeptide expression level or mRNA level in the first biological sample is measured or estimated and compared to a standard B7- like polypeptide level or mRNA level, the standard being taken from a second biological sample obtained from an individual not having the disorder or being determined by averaging levels from a population of individuals not having the disorder. As will be appreciated in the art, once a standard B7-like polypeptide level or mRNA level is known, it can be used repeatedly as a standard for comparison. [511] By "biological sample" is intended any biological sample obtained from an individual, cell line, tissue culture, or other source containing B7-like polypeptides (including portions thereof) or mRNA. As indicated, biological samples include body fluids (such as sera, plasma, urine, synovial fluid and spinal fluid) and tissue sources found to express the full length or fragments thereof of a B7-like polypeptide. Methods for obtaining tissue biopsies and body fluids from mammals are well known in the art. Where the biological sample is to include mRNA, a tissue biopsy is the preferred source. [512] Total cellular RNA can be isolated from a biological sample using any suitable technique such as the single-step guanidinium-thiocyanate-phenol-chloroform method described in Chomczynski and Sacchi, Anal. Biochem. 162356-159 (1987). Levels of mRNA encoding the B7-like polypeptides are then assayed using any appropriate method. These include Northern blot analysis, SI nuclease mapping, the polymerase chain reaction (PCR), reverse transcription in combination with the polymerase chain reaction (RT-PCR), and reverse transcription in combination with the ligase chain reaction (RT-LCR). [513] The present invention also relates to diagnostic assays such as quantitative and diagnostic assays for detecting levels of B7-like polypeptides, in a biological sample (e.g., cells and tissues), including determination of normal and abnormal levels of polypeptides. Thus, for instance, a diagnostic assay in accordance with the invention for detecting over- expression of B7-like polypeptides compared to normal control tissue samples may be used to detect the presence of tumors. Assay techniques that can be used to determine levels of a polypeptide, such as a B7-like polypeptide ofthe present invention in a sample derived from a host are well-known to those of skill in the art. Such assay methods include radioimmunoassays, competitive-binding assays, Western Blot analysis and ELISA assays. Assaying B7-like polypeptide levels in a biological sample can occur using any art-known method. [514] Assaying B7-like polypeptide levels in a biological sample can occur using antibody-based techniques. For example, B7-like polypeptide expression in tissues can be studied with classical immunohistological methods (Jalkanen et al., J. Cell. Biol. 101:976-985 (1985); Jalkanen, M., et al., J. Cell Biol, 105:3087-3096 (1987)). Other antibody-based methods useful for detecting B7-like polypeptide gene expression include immunoassays, such as the enzyme linked immunosorbent assay (ELISA) and the radioimmunoassay (RIA). Suitable antibody assay labels are known in the art and include enzyme labels, such as, glucose oxidase, and radioisotopes, such as iodine ( 125 I, 121 I), carbon ( 14 C), sulfur ( 35 S), tritium ( 3 H), indium ( 112 hι), and technetium ( 99m Tc), and fluorescent labels, such as fluorescein and rhodamine, and biotin. [515] The tissue or cell type to be analyzed will generally include those which are known, or suspected, to express the B7-like gene (such as, for example, cancer). The protein isolation methods employed herein may, for example, be such as those described in Harlow and Lane (Harlow, E. and Lane, D., 1988, "Antibodies: A Laboratory Manual", Cold Spring Harbor Laboratory Press, Cold Spring Harbor, New York), which is incoφorated herein by reference in its entirety. The isolated cells can be derived from cell culture or from a patient. The analysis of cells taken from culture may be a necessary step in the assessment of cells that could be used as part of a cell-based gene therapy technique or, alternatively, to test the effect of compounds on the expression ofthe B7-like gene. [516] For example, antibodies, or fragments of antibodies, such as those described herein, may be used to quantitatively or qualitatively detect the presence of B7-like gene products or conserved variants or peptide fragments thereof. This can be accomplished, for example, by immunofluorescence techniques employing a fluorescently labeled antibody coupled with light microscopic, flow cytometric, or fluorimetric detection. [517] In a preferred embodiment, antibodies, or fragments of antibodies directed to any one or all of the predicted epitope domains of the B7-like polypeptides may be used to quantitatively or qualitatively detect the presence of B7-like gene products or conserved variants or peptide fragments thereof. This can be accomplished, for example, by immunofluorescence techniques employing a fluorescently labeled antibody coupled with light microscopic, flow cytometric, or fluorimetric detection. [518] In an additional preferred embodiment, antibodies, or fragments of antibodies directed to a conformational epitope of a B7-like polypeptide may be used to quantitatively or qualitatively detect the presence of B7-like gene products or conserved variants or peptide fragments thereof. This can be accomplished, for example, by immunofluorescence techniques employing a fluorescently labeled antibody coupled with light microscopic, flow cytometric, or fluorimetric detection. [519] The antibodies (or fragments thereof), and/or B7-like polypeptides of the present invention may, additionally, be employed histologically, as in immunofluorescence, immunoelectron microscopy or non-immunological assays, for in situ detection of B7-like gene products or conserved variants or peptide fragments thereof, hi situ detection may be accomplished by removing a histological specimen from a patient, and applying thereto a labeled antibody or B7-like polypeptide of the present invention. The antibody (or fragment thereof) or B7-like polypeptide is preferably applied by overlaying the labeled antibody (or fragment) onto a biological sample. Through the use of such a procedure, it is possible to determine not only the presence ofthe B7-like gene product, or conserved variants or peptide fragments, or B7-like polypeptide binding, but also its distribution in the examined tissue. Using the present invention, those of ordinary skill will readily perceive that any of a wide variety of histological methods (such as staining procedures) can be modified in order to achieve such in situ detection. [520] Immunoassays and non-immunoassays for B7-like gene products or conserved variants or peptide fragments thereof will typically comprise incubating a sample, such as a biological fluid, a tissue extract, freshly harvested cells, or lysates of cells which have been incubated in cell culture, in the presence of a detectably labeled antibody capable of binding B7-like gene products or conserved variants or peptide fragments thereof, and detecting the bound antibody by any of a number of techniques well-known in the art. [521] The biological sample may be brought in contact with and immobilized onto a solid phase support or carrier such as nitrocellulose, or other solid support which is capable of immobilizing cells, cell particles or soluble proteins. The support may then be washed with suitable buffers followed by treatment with the detectably labeled anti-B7-like polypeptide antibody or detectable B7-like polypeptide. The solid phase support may then be washed with the buffer a second time to remove unbound antibody or polypeptide. Optionally the antibody is subsequently labeled. The amount of bound label on solid support may then be detected by conventional means. [522] By "solid phase support or carrier" is intended any support capable of binding an antigen or an antibody. Well-known supports or carriers include glass, polystyrene, polypropylene, polyethylene, dextran, nylon, amylases, natural and modified celluloses, polyacrylamides, gabbros, and magnetite. The nature of the carrier can be either soluble to some extent or insoluble for the puφoses ofthe present invention. The support material may have virtually any possible structural configuration so long as the coupled molecule is capable of binding to an antigen or antibody. Thus, the support configuration may be spherical, as in a bead, or cylindrical, as in the inside surface of a test tube, or the external surface of a rod. Alternatively, the surface may be flat such as a sheet, test strip, etc. Preferred supports include polystyrene beads. Those skilled in the art will know many other suitable carriers for binding antibody or antigen, or will be able to ascertain the same by use of routine experimentation. [523] The binding activity of a given lot of anti-B7-like polypeptide antibody or B7-like antigen polypeptide may be determined according to well known methods. Those skilled in the art will be able to determine operative and optimal assay conditions for each determination by employing routine experimentation. [524] In addition to assaying B7-like polypeptide levels or polynucleotide levels in a biological sample obtained from an individual, B7-like polypeptide or polynucleotide can also be detected in vivo by imaging. For example, in one embodiment of the invention, B7- like polypeptide and/or anti-B7-like antigen antibodies are used to image diseased cells, such as neoplasms. In another embodiment, B7-like polynucleotides of the invention (e.g., polynucleotides complementary to all or a portion of a particular B7-like mRNA transcript) and/or anti-B7-like antibodies (e.g., antibodies directed to any one or a combination of the epitopes of a B7-like polypeptide of the invention, antibodies directed to a conformational epitope of a B7-like polypeptide of the invention, or antibodies directed to the full length polypeptide expressed on the cell surface of a mammalian cell) are used to image diseased or neoplastic cells. [525] Antibody labels or markers for in vivo imaging of B7-like polypeptides include those detectable by X-radiography, NMR, MRI, CAT-scans or ESR. For X-radiography, suitable labels include radioisotopes such as barium or cesium, which emit detectable radiation but are not overtly harmful to the subject. Suitable markers for NMR and ESR include those with a detectable characteristic spin, such as deuterium, which may be incoφorated into the antibody by labeling of nutrients for the relevant hybridoma. Where in vivo imaging is used to detect enhanced levels of B7-like polypeptides for diagnosis in humans, it may be preferable to use human antibodies or "humanized" chimeric monoclonal antibodies. Such antibodies can be produced using techniques described herein or otherwise known in the art. For example methods for producing chimeric antibodies are known in the art. See, for review, Morrison, Science 229:1202 (1985); Oi et al., BioTechniques 4:214 (1986); Cabilly et al.,. U.S. Patent No. 4,816,567; Taniguchi et al, EP 171496; Morrison et al., EP 173494; Neuberger et al., WO 8601533; Robinson et al., WO 8702671; Boulianne et al, Nature 312:643 (1984); Neuberger et al, Nature 314:268 (1985). [526] Additionally, any B7-like polypeptides whose presence can be detected, can be administered. For example, B7-like polypeptides labeled with a radio-opaque or other appropriate compound can be administered and visualized in vivo, as discussed, above for labeled antibodies. Further such B7-like polypeptides can be utilized for in vitro diagnostic procedures. [527] A B7-like polypeptide-specific antibody or antibody fragment which has been labeled with an appropriate detectable imaging moiety, such as a radioisotope (for example, 131 I, 112 h , 99m Tc), a radio-opaque substance, or a material detectable by nuclear magnetic resonance, is introduced (for example, parenterally, subcutaneously or intraperitoneally) into the mammal to be examined for a disorder. It will be understood in the art that the size ofthe subject and the imaging system used will determine the quantity of imaging moiety needed to produce diagnostic images. In the case of a radioisotope moiety, for a human subject, the quantity of radioactivity injected will normally range from about 5 to 20 millicuries of 99m Tc. The labeled antibody or antibody fragment will then preferentially accumulate at the location of cells which contain B7-like protein. In vivo tumor imaging is described in S.W. Burchiel et al., "Immunopharmacokinetics of Radiolabeled Antibodies and Their Fragments" (Chapter 13 in Tumor Imaging: The Radiochemical Detection of Cancer, S.W. Burchiel and B. A. Rhodes, eds., Masson Publishing Inc. (1982)). [528] With respect to antibodies, one of the ways in which the anti-B7-like polypeptide antibody can be detectably labeled is by linking the same to a reporter enzyme and using the linked product in an enzyme immunoassay (EIA) (Voller, A., "The Enzyme Linked Immunosorbent Assay (ELISA)", 1978, Diagnostic Horizons 2:1-7, Microbiological Associates Quarterly Publication, Walkersville, MD); Voller et al., J Clin. Pathol. 31:507- 520 (1978); Butler, J.E., Meth. Enzymol. 73:482-523 (1981); Maggio, E. (ed.), 1980, Enzyme Immunoassay, CRC Press, Boca Raton, FL,; Ishikawa, E. et al., (eds.), 1981, Enzyme Immunoassay, Kgaku Shoin, Tokyo). The reporter enzyme which is bound to the antibody will react with an appropriate substrate, preferably a chromogenic substrate, in such a manner as to produce a chemical moiety which can be detected, for example, by spectrophotometric, fluorimetric or by visual means. Reporter enzymes which can be used to detectably label the antibody include, but are not limited to, malate dehydrogenase, staphylococcal nuclease, delta-5 -steroid isomerase, yeast alcohol dehydrogenase, alpha-glycerophosphate, dehydrogenase, triose phosphate isomerase, horseradish peroxidase, alkaline phosphatase, asparaginase, glucose oxidase, beta-galactosidase, ribonuclease, urease, catalase, glucose-6- phosphate dehydrogenase, glucoamylase and acetylcholinesterase. Additionally, the detection can be accomplished by colorimetric methods which employ a chromogenic substrate for the reporter enzyme. Detection may also be accomplished by visual comparison of the extent of enzymatic reaction of a substrate in comparison with similarly prepared standards. [529] Detection may also be accomplished using any of a variety of other immunoassays. For example, by radioactively labeling the antibodies or antibody fragments, it is possible to detect B7-like polypeptides through the use of a radioimmunoassay (RIA) (see, for example, Weintraub, B., Principles of Radioimmunoassays, Seventh Training Course on Radioligand Assay Techniques, The Endocrine Society, March, 1986, which is incoφorated by reference herein). The radioactive isotope can be detected by means including, but not limited to, a gamma counter, a scintillation counter, or autoradiography. [530] It is also possible to label the antibody with a fluorescent compound. When the fluorescently labeled antibody is exposed to light of the proper wave length, its presence can then be detected due to fluorescence. Among the most commonly used fluorescent labeling compounds are fluorescein isothiocyanate, rhodamine, phycoerythrin, phycocyanin, allophycocyanin, ophthaldehyde and fluorescamine. [531] The antibody can also be detectably labeled using fluorescence emitting metals such as Eu, or others ofthe lanthamde seπes. These metals can be attached to the antibody using such metal chelating groups as diethylenetriaminepentacetic acid (DTP A) or ethylenediaminetetraacetic acid (EDTA). [532] The antibody also can be detectably labeled by coupling it to a chemiluminescent compound. The presence of the chemiluminescent-tagged antibody is then determined by detecting the presence of luminescence that arises during the course of a chemical reaction. Examples of particularly useful chemiluminescent labeling compounds are luminol, isoluminol, theromatic acridinium ester, imidazole, acridinium salt and oxalate ester. [533] Likewise, a bioluminescent compound may be used to label the antibody of the present invention. Bioluminescence is a type of chemiluminescence found in biological systems in, which a catalytic protein increases the efficiency of the chemiluminescent reaction. The presence of a bioluminescent protein is determined by detecting the presence of luminescence. Important bioluminescent compounds for pmposes of labeling are luciferin, luciferase and aequorin. Methods for Detecting Diseases [534] In general, a disease may be detected in a patient based on the presence of one or more B7-like proteins of the invention and/or polynucleotides encoding such proteins in a biological sample (for example, blood, sera, urine, and/or tumor biopsies) obtained from the patient. In other words, such proteins may be used as markers to indicate the presence or absence of a disease or disorder, including cancer and/or as described elsewhere herein, hi addition, such proteins may be useful for the detection of other diseases and cancers. The binding agents provided herein generally permit detection ofthe level of antigen that binds to the agent in the biological sample. Polynucleotide primers and probes may be used to detect the level of mRNA encoding B7-like polypeptides, which is also indicative ofthe presence or absence of a disease or disorder, including cancer. In general, B7-like polypeptides should be present at a level that is at least three fold higher in diseased tissue than in normal tissue. [535] There are a variety of assay formats known to those of ordinary skill in the art for using a binding agent to detect polypeptide markers in a sample. See, e.g., Harlow and Lane, supra. In general, the presence or absence of a disease in a patient may be determined by (a) contacting a biological sample obtained from a patient with a binding agent; (b) detecting in the sample a level of polypeptide that binds to the binding agent; and (c) comparing the level of polypeptide with a predetermined cut-off value. [536] In a preferred embodiment, the assay involves the use of a binding agent(s) immobilized on a solid support to bind to and remove the B7-like polypeptide of the invention from the remainder of the sample. The bound polypeptide may then be detected using a detection reagent that contains a reporter group and specifically binds to the binding agent/polypeptide complex. Such detection reagents may comprise, for example, a binding agent that specifically binds to the polypeptide or an antibody or other agent that specifically binds to the binding agent, such as an anti-immunoglobulin, protein G, protein A or a lectin. Alternatively, a competitive assay may be utilized, in which a polypeptide is labeled with a reporter group and allowed to bind to the immobilized binding agent after incubation of the binding agent with the sample. The extent to which components of the sample inhibit the binding of the labeled polypeptide to the binding agent is indicative of the reactivity of the sample with the immobilized binding agent. Suitable polypeptides for use within such assays include B7-like polypeptides and portions thereof, or antibodies, to which the binding agent binds, as described above. [537] The solid support may be any material known to those of skill in the art to which B7-like polypeptides ofthe invention may be attached. For example, the solid support may be a test well in a microtiter plate or a nitrocellulose or other suitable membrane. Alternatively, the support may be a bead or disc, such as glass fiberglass, latex or a plastic material such as polystyrene or polyvinylchloride. The support may also be a magnetic particle or a fiber optic sensor, such as those disclosed, for example, in U.S. Patent No. 5,359,681. The binding agent may be immobilized on the solid support using a variety of techniques known to those of skill in the art, which are amply described in the patent and scientific literature, hi the context of the present invention, the term "immobilization" refers to both noncovalent association, such as adsoφtion, and covalent attachment (wliich may be a direct linkage between the agent and functional groups on the support or may be a linkage by way of a cross-linking agent). Immobilization by adsoφtion to a well in a microtiter plate or to a membrane is preferred. In such cases, adsoφtion may be achieved by contacting the binding agent, in a suitable buffer, with the solid support for the suitable amount of time. The contact time varies with temperature, but is typically between about 1 hour and about 1 day. In general, contacting a well of plastic microtiter plate (such as polystyrene or polyvinylchloride) with an amount of binding agent ranging from about 10 ng to about 10 ug, and preferably about 100 ng to about 1 ug, is sufficient to immobilize an adequate amount of binding agent. [538] Covalent attachment of binding agent to a solid support may generally be achieved by first reacting the support with a bifunctional reagent that will react with both the support and a functional group, such as a hydroxyl or amino group, on the binding agent. For example, the binding agent may be covalently attached to supports having an appropriate polymer coating using benzoquinone or by condensation of an aldehyde group on the support with an amine and an active hydrogen on the binding partner (see, e.g., Pierce Immunotechnology Catalog and Handbook, 1991, at A12-A13). Gene Therapy Methods [539] Another aspect of the present invention is to gene therapy methods for treating or preventing disorders, diseases and conditions. The gene therapy methods relate to the introduction of nucleic acid (DNA, RNA and antisense DNA or RNA) sequences into an animal to achieve expression of the polypeptide of the present invention. This method requires a polynucleotide wliich codes for a polypeptide of the present invention operatively linked to a promoter and any other genetic elements necessary for the expression of the polypeptide by the target tissue. Such gene therapy and delivery techniques are known in the art, see, for example, WO90/11092, which is herein incoφorated by reference. [540] Thus, for example, cells from a patient may be engineered with a polynucleotide (DNA or RNA) comprising a promoter operably linked to a polynucleotide of the present invention ex vivo, with the engineered cells then being provided to a patient to be treated with the polypeptide of the present invention. Such methods are well-known in the art. For example, see Belldegrun, A., et al., J. Natl. Cancer hist. 85: 207-216 (1993); Ferrantini, M. et al., Cancer Research 53: 1107-1112 (1993); Ferrantini, M. et al., J. Immunology 153: 4604- 4615 (1994); Kaido, T., et al., Int. J. Cancer 60: 221-229 (1995); Ogura, H, et al, Cancer Research 50: 5102-5106 (1990); Santodonato, L., et al., Human Gene Therapy 7:1-10 (1996); Santodonato, L., et al., Gene Therapy 43246-1255 (1997); and Zhang, J.-F. et al., Cancer Gene Therapy 3: 31-38 (1996)), which are herein incoφorated by reference. In one embodiment, the cells which are engineered are arterial cells. The arterial cells may be reintroduced into the patient through direct injection to the artery, the tissues surrounding the artery, or through catheter injection. [541] As discussed in more detail below, the polynucleotide constructs can be delivered by any method that delivers mjectable materials to the cells of an animal, such as, injection into the interstitial space of tissues (heart, muscle, skin, lung, liver, and the like). The polynucleotide constructs may be delivered in a pharmaceutically acceptable liquid or aqueous carrier. [542] In one embodiment, the polynucleotide of the present invention is delivered as a naked polynucleotide. The term "naked" polynucleotide, DNA or RNA refers to sequences that are free from any delivery vehicle that acts to assist, promote or facilitate entry into the cell, including viral sequences, viral particles, liposome formulations, lipofectin or precipitating agents and the like. However, the polynucleotide of the present invention can also be delivered in liposome formulations and lipofectin formulations and the like can be prepared by methods well known to those skilled in the art. Such methods are described, for example, in U.S. Patent Nos. 5,593,972, 5,589,466, and 5,580,859, which are herein incoφorated by reference. [543] The polynucleotide vector constructs used in the gene therapy method are preferably constructs that will not integrate into the host genome nor will they contain sequences that allow for replication. Appropriate vectors include pWLNEO, pSV2CAT, ρOG44, pXTl and pSG available from Stratagene; pSVK3, pBPV, pMSG and pSVL available from Pharmacia; and pEFl/V5, pcDNA33, and pRc/CMV2 available from Invitrogen. Other suitable vectors will be readily apparent to the skilled artisan. [544] Any strong promoter known to those skilled in the art can be used for driving the expression ofthe polynucleotide sequence. Suitable promoters include adenoviral promoters, such as the adenoviral major late promoter; or heterologous promoters, such as the cytomegalovirus (CMV) promoter; the respiratory syncytial virus (RSV) promoter; inducible promoters, such as the MMT promoter, the metallothionein promoter; heat shock promoters; the albumin promoter; the ApoAI promoter; human globin promoters; viral thymidine kinase promoters, such as the Heφes Simplex thymidine kinase promoter; retroviral LTRs; the b- actin promoter; and human growth hormone promoters. The promoter also may be the native promoter for the polynucleotide ofthe present invention. [545] Unlike other gene therapy techniques, one major advantage of introducing naked nucleic acid sequences into target cells is the transitory nature ofthe polynucleotide synthesis in the cells. Studies have shown that non-replicating DNA sequences can be introduced into cells to provide production ofthe desired polypeptide for periods of up to six months. [546] The polynucleotide construct can be delivered to the interstitial space of tissues within the an animal, including of muscle, skin, brain, lung, liver, spleen, bone marrow, thymus, heart, lymph, blood, bone, cartilage, pancreas, kidney, gall bladder, stomach, intestine, testis, ovary, uterus, rectum, nervous system, eye, gland, and connective tissue. Interstitial space of the tissues comprises the intercellular, fluid, mucopolysaccharide matrix among the reticular fibers of organ tissues, elastic fibers in the walls of vessels or chambers, collagen fibers of fibrous tissues, or that same matrix within connective tissue ensheathing muscle cells or in the lacunae of bone. It is similarly the space occupied by the plasma ofthe circulation and the lymph fluid ofthe lymphatic channels. Delivery to the interstitial space of muscle tissue is preferred for the reasons discussed below. They may be conveniently delivered by injection into the tissues comprising these cells. They are preferably delivered to and expressed in persistent, non-dividing cells wliich are differentiated, although delivery and expression may be achieved in non-differentiated or less completely differentiated cells, such as, for example, stem cells of blood or skin fibroblasts. In vivo muscle cells are particularly competent in their ability to take up and express polynucleotides. [547] For the naked nucleic acid sequence injection, an effective dosage amount of DNA or RNA will be in the range of from about 0.05 mg/kg body weight to about 50 mg/kg body weight. Preferably the dosage will be from about 0.005 mg3 g to about 20 mg/kg and more preferably from about 0.05 mg/kg to about 5 mg/kg. Of course, as the artisan of ordinary skill will appreciate, this dosage will vary according to the tissue site of injection. The appropriate and effective dosage of nucleic acid sequence can readily be determined by those of ordinary skill in the art and may depend on the condition being treated and the route of administration. [548] The preferred route of administration is by the parenteral route of injection into the interstitial space of tissues. However, other parenteral routes may also be used, such as, inhalation of an aerosol formulation particularly for delivery to lungs or bronchial tissues, throat or mucous membranes of the nose. In addition, naked DNA constructs can be delivered to arteries during angioplasty by the catheter used in the procedure. [549] The naked polynucleotides are delivered by any method known in the art, including, but not limited to, direct needle injection at the delivery site, intravenous injection, topical administration, catheter infusion, and so-called "gene guns". These delivery methods are known in the art. [550] The constructs may also be delivered with delivery vehicles such as viral sequences, viral particles, liposome formulations, lipofectin, precipitating agents, etc. Such methods of delivery are known in the art. [551] hi certain embodiments, the polynucleotide constructs are complexed in a liposome preparation. Liposomal preparations for use in the instant invention include cationic (positively charged), anionic (negatively charged) and neutral preparations. However, cationic liposomes are particularly preferred because a tight charge complex can be formed between the cationic liposome and the polyanionic nucleic acid. Cationic liposomes have been shown to mediate intracellular delivery of plasmid DNA (Feigner et al., Proc. Natl. Acad. Sci. USA (1987) 84:7413-7416, which is herein incoφorated by reference); mRNA (Malone et al., Proc. Natl. Acad. Sci. USA (1989) 86:6077-6081, which is herein incoφorated by reference); and purified transcription factors (Debs et al., J. Biol. Chem. (1990) 26530189-10192, which is herein incoφorated by reference), in functional form. [552] Cationic liposomes are readily available. For example, N[l-2,3-dioleyloxy)propyl]-N,N,N-triethylammonium (DOTMA) liposomes are particularly useful and are available under the trademark Lipofectin, from GEBCO BRL, Grand Island, N.Y. (See, also, Feigner et al., Proc. Natl Acad. Sci. USA (1987) 84:7413-7416, which is herein incoφorated by reference). Other commercially available liposomes include transfectace (DDAB/DOPE) and DOTAP3DOPE (Boehringer). [553] Other cationic liposomes can be prepared from readily available materials using techniques well known in the art. See, e.g. PCT Publication No. WO 90/11092 (which is herein incoφorated by reference) for a description of the synthesis of DOTAP (1,2- bis(oleoyloxy)-3-(trimethylammonio)propane) liposomes. Preparation of DOTMA liposomes is explained in the literature, see, e.g., P. Feigner et al., Proc. Natl. Acad. Sci. USA 84:7413-7417, which is herein incoφorated by reference. Similar methods can be used to prepare liposomes from other cationic lipid materials. [554] Similarly, anionic and neutral liposomes are readily available, such as from Avanti Polar Lipids (Birmingham, Ala.), or can be easily prepared using readily available materials. Such materials include phosphatidyl, choline, cholesterol, phosphatidyl ethanolamine, dioleoylphosphatidyl choline (DOPC), dioleoylphosphatidyl glycerol (DOPG), dioleoylphoshatidyl ethanolamine (DOPE), among others. These materials can also be mixed with the DOTMA and DOTAP starting materials in appropriate ratios. Methods for making liposomes using these materials are well known in the art. [555] For example, commercially dioleoylphosphatidyl choline (DOPC), dioleoylphosphatidyl glycerol (DOPG), and dioleoylphosphatidyl ethanolamine (DOPE) can be used in various combinations to make conventional liposomes, with or without the addition of cholesterol. Thus, for example, DOPG/DOPC vesicles can be prepared by drying 50 mg each of DOPG and DOPC under a stream of nitrogen gas into a sonication vial. The sample is placed under a vacuum pump overnight and is hydrated the following day with deionized water. The sample is then sonicated for 2 hours in a capped vial, using a Heat Systems model 350 sonicator equipped with an inverted cup (bath type) probe at the maximum setting while the bath is circulated at 15EC. Alternatively, negatively charged vesicles can be prepared without sonication to produce multilamellar vesicles or by extrusion through nucleopore membranes to produce unilamellar vesicles of discrete size. Other methods are known and available to those of skill in the art. [556] The liposomes can comprise multilamellar vesicles (MLVs), small unilamellar vesicles (SUVs), or large unilamellar vesicles (LUVs), with SUVs being preferred. The various liposome-nucleic acid complexes are prepared using methods well known in the art. See, e.g., Sfraubinger et al., Methods of Immunology (1983), 101:512-527, which is herein incoφorated by reference. For example, MLVs containing nucleic acid can be prepared by depositing a thin film of phospholipid on the walls of a glass tube and subsequently hydrating with a solution ofthe material to be encapsulated. SUVs are prepared by extended sonication of MLVs to produce a homogeneous population of unilamellar liposomes. The material to be entrapped is added to a suspension of preformed MLVs and then sonicated. When using liposomes containing cationic lipids, the dried lipid film is resuspended in an appropriate solution such as sterile water or an isotonic buffer solution such as 10 mM Tris/NaCl, sonicated, and then the preformed liposomes are mixed directly with the DNA. The liposome and DNA form a very stable complex due to binding of the positively charged liposomes to the cationic DNA. SUVs find use with small nucleic acid fragments. LUVs are prepared by a number of methods, well known in the art. Commonly used methods include Ca 2+ -EDTA chelation (Papahadjopoulos et al., Biochim. Biophys. Acta (1975) 394:483; Wilson et al., Cell (1979) 17:77); ether injection (Deamer, D. and Bangham, A., Biochim. Biophys. Acta (1976) 443:629; Ostro et al., Biochem. Biophys. Res. Commun. (1977) 76:836; Fraley et al., Proc. Natl. Acad. Sci. USA (1979) 76:3348); detergent dialysis (Enoch, H. and Strittmatter, P., Proc. Natl. Acad. Sci. USA (1979) 76:145); and reverse-phase evaporation (REV) (Fraley et al., J. Biol. Chem. (1980) 25530431; Szoka, F. and Papahadjopoulos, D., Proc. Natl. Acad. Sci. USA (1978) 75:145; Schaefer-Ridder et al., Science (1982) 215366), which are herein incoφorated by reference. [557] Generally, the ratio of DNA to liposomes will be from about 10:1 to about 1:10. Preferably, the ration will be from about 5:1 to about 1 :5. More preferably, the ration will be about 3 : 1 to about 1:3. Still more preferably, the ratio will be about 1:1. [558] U.S. Patent No. 5,676,954 (which is herein incoφorated by reference) reports on the injection of genetic material, complexed with cationic liposomes carriers, into mice. U.S. Patent Nos. 4,897,355, 4,946,787, 5,049,386, 5,459,127, 5,589,466, 5,693,622, 5,580,859, 5,703,055, and international publication no. WO 94/9469 (which are herein incoφorated by reference) provide cationic lipids for use in transfecting DNA into cells and mammals. U.S. Patent Nos. 5,589,466, 5,693,622, 5,580,859, 5,703,055, and international publication no. WO 94/9469 (which are herein incoφorated by reference) provide methods for delivering DNA-cationic lipid complexes to mammals. [559] In certain embodiments, cells are engineered, ex vivo or in vivo, using a retroviral particle containing RNA which comprises a sequence encoding a polypeptide of the present invention. Retroviruses from which the retroviral plasmid vectors may be derived include, but are not limited to, Moloney Murine Leukemia Virus, spleen necrosis virus, Rous sarcoma Virus, Harvey Sarcoma Virus, avian leukosis virus, gibbon ape leukemia virus, human immunodeficiency virus, Myeloproliferative Sarcoma Virus, and mammary tumor virus. [560] The retroviral plasmid vector is employed to transduce packaging cell lines to form producer cell lines. Examples of packaging cells which may be transfected include, but are not limited to, the PE501, PA317, R-2, R-AM, PA12, T19-14X, VT-19-17-H2, RCRE, RCP3P, GP+E-86, GP+envAml2, and DAN cell lines as described in Miller, Human Gene Therapy 1:5-14 (1990), which is incoφorated herein by reference in its entirety. The vector may transduce the packaging cells through any means known in the art. Such means include, but are not limited to, electroporation, the use of liposomes, and CaPO 4 precipitation. In one alternative, the retroviral plasmid vector may be encapsulated into a liposome, or coupled to a lipid, and then administered to a host. [561] The producer cell line generates infectious retroviral vector particles which include polynucleotide encoding a polypeptide of the present invention. Such retroviral vector particles then may be employed, to transduce eukaryotic cells, either in vitro or in vivo. The transduced eukaryotic cells will express a polypeptide ofthe present invention. [562] In certain other embodiments, cells are engineered, ex vivo or in vivo, with polynucleotide contained in an adenovirus vector. Adenovirus can be manipulated such that it encodes and expresses a polypeptide of the present mvention, and at the same time is inactivated in terms of its ability to replicate in a normal lytic viral life cycle. Adenovirus expression is achieved without integration of the viral DNA into the host cell chromosome, thereby alleviating concerns about insertional mutagenesis. Furthermore, adenoviruses have been used as live enteric vaccines for many years with an excellent safety profile (Schwartz, A. R. et al. (1974) Am. Rev. Respir. Dis.109:233-238). Finally, adenovirus mediated gene transfer has been demonstrated hi a number of instances including transfer of alpha- 1-antitrypsin and CFTR to the lungs of cotton rats (Rosenfeld, M. A. et al. (1991) Science 252:431-434; Rosenfeld et al., (1992) Cell 68343-155). Furthermore, extensive studies to attempt to establish adenovirus as a causative agent in human cancer were uniformly negative (Green, M. et al. (1979) Proc. Natl. Acad. Sci. USA 76:6606). [563] Suitable adenoviral vectors useful in the present invention are described, for example, in Kozarsky and Wilson, Curr. Opin. Genet. Devel. 3:499-503 (1993); Rosenfeld et al., Cell 68343-155 (1992); Engelhardt et al, Human Genet. Ther. 4:759-769 (1993); Yang et al., Nature Genet. 7:362-369 (1994); Wilson et al., Nature 365:691-692 (1993); and U.S. Patent No. 5,652,224, which are herein incoφorated by reference. For example, the adenovirus vector Ad2 is useful and can be grown in human 293 cells. These cells contain the El region of adenovirus and constitutively express Ela and Elb, which complement the defective adenoviruses by providing the products of the genes deleted from the vector, hi addition to Ad2, other varieties of adenovirus (e.g., Ad3, Ad5, and Ad7) are also useful in the present invention. [564] Preferably, the adenoviruses used in the present invention are replication deficient. Replication deficient adenoviruses require the aid of a helper virus and/or packaging cell line to form infectious particles. The resulting virus is capable of infecting cells and can express a polynucleotide of interest which is operably linked to a promoter, but cannot replicate in most cells. Replication deficient adenoviruses may be deleted in one or more of all or a portion of the following genes: Ela, Elb, E3, E4, E2a, or LI through L5. [565] h certain other embodiments, the cells are engineered, ex vivo or in vivo, using an adeno-associated virus (AAV). AAVs are naturally occurring defective viruses that require helper viruses to produce infectious particles (Muzyczka, N., Curr. Topics in Microbiol. Immunol. 158:97 (1992)). It is also one of the few viruses that may integrate its DNA into non-dividing cells. Vectors containing as little as 300 base pairs of AAV can be packaged and can integrate, but space for exogenous DNA is limited to about 4.5 kb. Methods for producing and using such AAVs are known in the art. See, for example, U.S. Patent Nos. 5,139,941, 5,173,414, 5,354,678, 5,436,146, 5,474,935, 5,478,745, and 5,589,377. [566] For example, an appropriate AAV vector for use in the present invention will include all the sequences necessary for DNA replication, encapsidation, and host-cell integration. The polynucleotide construct is inserted into the AAV vector using standard cloning methods, such as those found in Sambrook et al., Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Press (1989). The recombinant AAV vector is then transfected into packaging cells which are infected with a helper virus, using any standard technique, including lipofection, electroporation, calcium phosphate precipitation, etc. Appropriate helper viruses include adenoviruses, cytomegaloviruses, vaccinia viruses, or heφes viruses. Once the packaging cells are transfected and infected, they will produce infectious AAV viral particles which contain the polynucleotide construct. These viral particles are then used to transduce eukaryotic cells, either ex vivo or in vivo. The transduced cells will contain the polynucleotide construct integrated into its genome, and will express a polypeptide of the invention. [567] Another method of gene therapy involves operably associating heterologous control regions and endogenous polynucleotide sequences (e.g. encoding a polypeptide ofthe present invention) via homologous recombination (see, e.g., U.S. Patent No. 5,641,670, issued June 24, 1997; International Publication No. WO 96/29411, published September 26, 1996; International Publication No. WO 94/12650, published August 4, 1994; Roller et al., Proc. Natl. Acad. Sci. USA 86:8932-8935 (1989); and Zijlsfra et al., Nature 342:435-438 (1989). This method involves the activation of a gene which is present in the target cells, but which is not normally expressed in the cells, or is expressed at a lower level than desired. [568] Polynucleotide constructs are made, using standard techniques known in the art, which contain the promoter with targeting sequences flanking the promoter. Suitable promoters are described herein. The targeting sequence is sufficiently complementary to an endogenous sequence to permit homologous recombination of the promoter-targeting sequence with the endogenous sequence. The targeting sequence will be sufficiently near the 5' end of the desired endogenous polynucleotide sequence so the promoter will be operably linked to the endogenous sequence upon homologous recombination. [569] The promoter and the targeting sequences can be amplified using PCR. Preferably, the amplified promoter contains distinct restriction enzyme sites on the 5' and 3' ends. Preferably, the 3' end ofthe first targeting sequence contains the same restriction enzyme site as the 5' end of the amplified promoter and the 5' end of the second targeting sequence contains the same restriction site as the 3' end of the amplified promoter. The amplified promoter and targeting sequences are digested and ligated together. [570] The promoter-targeting sequence construct is delivered to the cells, either as naked polynucleotide, or in conjunction with transfection-facilitating agents, such as liposomes, viral sequences, viral particles, whole viruses, lipofection, precipitating agents, etc., described in more detail above. The P promoter-targeting sequence can be delivered by any method, included direct needle injection, intravenous injection, topical administration, catheter infusion, particle accelerators, etc. The methods are described in more detail below. [571] The promoter-targeting sequence construct is taken up by cells. Homologous recombination between the construct and the endogenous sequence takes place, such that an endogenous sequence is placed under the control of the promoter. The promoter then drives the expression ofthe endogenous sequence. [572] Preferably, the polynucleotide encoding a polypeptide of the present invention contains a secretory signal sequence that facilitates secretion of the protein. Typically, the signal sequence is positioned in the coding region of the polynucleotide to be expressed towards or at the 5' end of the coding region. The signal sequence may be homologous or heterologous to the polynucleotide of interest and may be homologous or heterologous to the cells to be transfected. Additionally, the signal sequence may be chemically synthesized using methods known in the art. [573] Any mode of administration of any of the above-described polynucleotides constructs can be used so long as the mode results in the expression of one or more molecules in an amount sufficient to provide a therapeutic effect. This includes direct needle injection, systemic injection, catheter infusion, biolistic injectors, particle accelerators (i.e., "gene guns"), gelfoam sponge depots, other commercially available depot materials, osmotic pumps (e.g., Alza minipumps), oral or suppositorial solid (tablet or pill) pharmaceutical formulations, and decanting or topical applications during surgery. For example, direct injection of naked calcium phosphate-precipitated plasmid into rat liver and rat spleen or a protein-coated plasmid into the portal vein has resulted in gene expression ofthe foreign gene in the rat livers (Kaneda et al., Science 243:375 (1989)). [574] A preferred method of local administration is by direct injection. Preferably, a recombinant molecule of the present invention complexed with a delivery vehicle is administered by direct injection into or locally within the area of arteries. Administration of a composition locally within the area of arteries refers to injecting the composition centimeters and preferably, millimeters within arteries. [575] Another method of local administration is to contact a polynucleotide construct of the present invention in or around a surgical wound. For example, a patient can undergo surgery and the polynucleotide construct can be coated on the surface of tissue inside the wound or the construct can be injected into areas of tissue inside the wound. [576] Therapeutic compositions useful in systemic administration, include recombinant molecules of the present invention complexed to a targeted delivery vehicle of the present invention. Suitable delivery vehicles for use with systemic administration comprise liposomes comprising ligands for targeting the vehicle to a particular site. [577] Preferred methods of systemic administration, include intravenous injection, aerosol, oral and percutaneous (topical) delivery. Intravenous injections can be performed using methods standard in the art. Aerosol delivery can also be performed using methods standard in the art (see, for example, Stribling et al., Proc. Natl. Acad. Sci. USA 18931277-11281, 1992, which is incoφorated herein by reference). Oral delivery can be performed by complexing a polynucleotide construct of the present invention to a carrier capable of withstanding degradation by digestive enzymes in the gut of an animal. Examples of such carriers, include plastic capsules or tablets, such as those known in the art. Topical delivery can be performed by mixing a polynucleotide construct ofthe present invention with a lipophilic reagent (e.g., DMSO) that is capable of passing into the skin. [578] Determining an effective amount of substance to be delivered can depend upon a number of factors including, for example, the chemical structure and biological activity ofthe substance, the age and weight ofthe animal, the precise condition requiring treatment and its severity, and the route of administration. The frequency of treatments depends upon a number of factors, such as the amount of polynucleotide constructs administered per dose, as well as the health and history of the subject. The precise amount, number of doses, and timing of doses will be determined by the attending physician or veterinarian. [579] Therapeutic compositions of the present invention can be administered to any animal, preferably to mammals and birds. Preferred mammals include humans, dogs, cats, mice, rats, rabbits sheep, cattle, horses and pigs, with humans being particularly preferred. Biological Activities [580] Polynucleotides or polypeptides, or agonists or antagonists of the present invention, can be used in assays to test for one or more biological activities. If these polynucleotides or polypeptides, or agonists or antagonists of the present invention, do exhibit activity in a particular assay, it is likely that these molecules may be involved in the diseases associated with the biological activity. Thus, the polynucleotides and polypeptides, and agonists or antagonists could be used to treat the associated disease. [581] Members ofthe B7-like family of proteins are believed to be involved in biological activities associated with T cell activation, cytokine production, T cell proliferation, and immune system and inflammatory disorders. Accordingly, compositions of the invention (including polynucleotides, polypeptides and antibodies of the invention, and fragments and variants thereof) may be used in the diagnosis, detection and/or treatment of diseases and/or disorders associated with aberrant B7-like activities. [582] hi preferred embodiments, compositions of the invention (including polynucleotides, polypeptides and antibodies of the invention, and fragments and variants thereof) may be used in the diagnosis, detection and/or treatment of diseases and/or disorders relating to the immune system in general, and T cell activation specifically (e.g., cytokine production, inflammation, T cell proliferation and T cell proliferative disorders, and/or as described under "Immune Activity", "Hypeφroliferative Disorders" and "Diseases at the Cellular Level" below). Thus, polynucleotides, translation products and antibodies of the invention are useful in the diagnosis, detection and/or treatment of diseases and/or disorders associated with activities that include, but are not limited to, T cell activation, cytokine production, T cell proliferation, T cell proliferative disorders, inflammation, and immune system disorders. [583] In certain embodiments, a polypeptide of the invention, or polynucleotides, antibodies, agonists, or antagonists corresponding to that polypeptide, may be used to diagnose and/or prognose diseases and/or disorders associated with the tissue(s) in which the polypeptide of the invention is expressed, including the tissues disclosed in "Polynucleotides and Polypeptides of the Invention", and/or one, two, three, four, five, or more tissues disclosed in Table 10, column 2 (Library Code). [584] Thus, polynucleotides, translation products and antibodies of the invention are useful in the diagnosis, detection and/or treatment of diseases and/or disorders associated with activities that include, but are not limited to, H V-induced dementia, arrhythmias, high blood pressure, muscular contractile dysfunction, pace-maker dysfunction, disorders of proper neurotransmitter release, epilepsy, stroke, and/or hormone secretion disorders. [585] More generally, polynucleotides, translation products and antibodies corresponding to this gene may be useful for the diagnosis, detection and/or treatment of diseases and/or disorders associated with the following systems. Immune Activity [586] Polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, diagnosing and/or prognosing diseases, disorders, and/or conditions of the immune system, by, for example, activating or inhibiting the proliferation, differentiation, or mobilization (chemotaxis) of immune cells. Immune cells develop through a process called hematopoiesis, producing myeloid (platelets, red blood cells, neutrophils, and macrophages) and lymphoid (B and T lymphocytes) cells from pluripotent stem cells. The etiology of these immune diseases, disorders, and/or conditions may be genetic, somatic, such as cancer and some autoimmune diseases, acquired (e.g., by chemotherapy or toxins), or infectious. Moreover, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention can be used as a marker or detector of a particular immune system disease or disorder. [587] In another embodiment, a polypeptide of the invention, or polynucleotides, antibodies, agonists, or antagonists corresponding to that polypeptide, may be used to treat diseases and disorders of the immune system and/or to inhibit or enhance an immune response generated by cells associated with the tissue(s) in which the polypeptide of the invention is expressed, including one, two, three, four, five, or more tissues disclosed in Table 10, column 2 (Library Code). [588] Polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, diagnosing, and/or prognosing immunodeficiencies, including both congenital and acquired immunodeficiencies. Examples of B cell immunodeficiencies in which immunoglobulin levels B cell function and/or B cell numbers are decreased include: X-linked agammaglobulinemia (Bruton's disease), X-linked infantile agammaglobulinemia, X-linked immunodeficiency with hyper IgM, non X-linked immunodeficiency with hyper IgM, X-linked lymphoproliferative syndrome (XLP), agammaglobulinemia including congenital and acquired agammaglobulinemia, adult onset agammaglobulinemia, late-onset agammaglobulinemia, dysgammaglobulinemia, hypogammaglobulinemia, unspecified hypogammaglobulinemia, recessive agammaglobulinemia (Swiss type), Selective IgM deficiency, selective IgA deficiency, selective IgG subclass deficiencies, IgG subclass deficiency (with or without IgA deficiency), Ig deficiency with increased IgM, IgG and IgA deficiency with increased IgM, antibody deficiency with normal or elevated Igs, Ig heavy chain deletions, kappa chain deficiency, B cell lymphoproliferative disorder (BLPD), common variable immunodeficiency (CNDD), common variable immunodeficiency (CNI) (acquired), and transient hypogammaglobulinemia of infancy. [589] In specific embodiments, ataxia-telangiectasia or conditions associated with ataxia- telangiectasia are treated, prevented, diagnosed, and/or prognosing using the polypeptides or polynucleotides ofthe invention, and/or agonists or antagonists thereof. [590] Examples of congenital immunodeficiencies in which T cell and/or B cell function and/or number is decreased include, but are not limited to: DiGeorge anomaly, severe combined immunodeficiencies (SCDD) (including, but not limited to, X-linked SCDD, autosomal recessive SCDD, adenosine deaminase deficiency, purine nucleoside phosphorylase (PΝP) deficiency, Class Et MHC deficiency (Bare lymphocyte syndrome), Wiskott-Aldrich syndrome, and ataxia telangiectasia), thymic hypoplasia, third and fourth pharyngeal pouch syndrome, 22ql 1.2 deletion, chronic mucocutaneous candidiasis, natural killer cell deficiency (ΝK), idiopathic CD4+ T-lymphocytopenia, immunodeficiency with predominant T cell defect (unspecified), and unspecified immunodeficiency of cell mediated immunity. [591] In specific embodiments, DiGeorge anomaly or conditions associated with DiGeorge anomaly are treated, prevented, diagnosed, and/or prognosed using polypeptides or polynucleotides ofthe invention, or antagonists or agonists thereof. [592] Other immunodeficiencies that may be treated, prevented, diagnosed, and/or prognosed using polypeptides or polynucleotides of the invention, and/or agonists or antagonists thereof, include, but are not limited to, chronic granulomatous disease, Chediak- Higashi syndrome, myeloperoxidase deficiency, leukocyte glucose-6-phosphate dehydrogenase deficiency, X-linked lymphoproliferative syndrome (XLP), leukocyte adhesion deficiency, complement component deficiencies (including Cl, C2, C3, C4, C5, C6, C7, C8 and/or C9 deficiencies), reticular dysgenesis, thymic alymphoplasia-aplasia, immunodeficiency with thymoma, severe congenital leukopenia, dysplasia with immunodeficiency, neonatal neutropenia, short limbed dwarfism, and Νezelof syndrome- combined immunodeficiency with Igs. [593] In a preferred embodiment, the immunodeficiencies and/or conditions associated with the immunodeficiencies recited above are treated, prevented, diagnosed and/or prognosed using polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention. [594] hi a preferred embodiment polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention could be used as an agent to boost immunoresponsiveness among immunodeficient individuals. In specific embodiments, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention could be used as an agent to boost immunoresponsiveness among B cell and/or T cell immunodeficient individuals. [595] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be useful in treating, preventing, diagnosing and/or prognosing autoimmune disorders. Many autoimmune disorders result from inappropriate recognition of self as foreign material by immune cells. This inappropriate recognition results in an immune response leading to the destruction of the host tissue. Therefore, the administration of polynucleotides and polypeptides of the invention that can inhibit an immune response, particularly the proliferation, differentiation, or chemotaxis of T-cells, may be an effective therapy in preventing autoimmune disorders. [596] Autoimmune diseases or disorders that may be treated, prevented, diagnosed and/or prognosed by polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention include, but are not limited to, one or more of the following: systemic lupus erythematosus, rheumatoid arthritis, ankylosing spondylitis, multiple sclerosis, autoimmune thyroiditis, Hashimoto's thyroiditis, autoimmune hemolytic anemia, hemolytic anemia, thrombocytopenia, autoimmune thrombocytopenia puφura, autoimmune neonatal thrombocytopenia, idiopathic thrombocytopenia pvupura, puφura (e.g., Henloch- Scoenlein puφura), autoimmunocytopenia, Goodpasture's syndrome, Pemphigus vulgaris, myasthenia gravis, Grave's disease (hyperthyroidism), and insulin-resistant diabetes mellitus. [597] Additional disorders that are likely to have an autoimmune component that may be treated, prevented, and/or diagnosed with the compositions of the invention include, but are not limited to, type Et collagen-induced arthritis, antiphospholipid syndrome, dermatitis, allergic encephalomyelitis, myocarditis, relapsing polychondritis, rheumatic heart disease, neuritis, uveitis ophthalmia, polyendocrinopathies, Reiter's Disease, Stiff-Man Syndrome, autoimmune pulmonary inflammation, autism, Guillain-Barre Syndrome, insulin dependent diabetes mellitus, and autoimmune inflammatory eye disorders. [598] Additional disorders that are likely to have an autoimmune component that may be treated, prevented, diagnosed and/or prognosed with the compositions of the invention include, but are not limited to, scleroderma with anti-collagen antibodies (often characterized, e.g., by nucleolar and other nuclear antibodies), mixed connective tissue disease (often characterized, e.g., by antibodies to extractable nuclear antigens (e.g., ribonucleoprotein)), polymyositis (often characterized, e.g., by nonliistone ANA), pernicious anemia (often characterized, e.g., by antiparietal cell, microsomes, and intrinsic factor antibodies), idiopathic Addison's disease (often characterized, e.g., by humoral and cell-mediated adrenal cytotoxicity, infertility (often characterized, e.g., by antispermatozoal antibodies), glomerulonephritis (often characterized, e.g., by glomerular basement membrane antibodies or immune complexes), bullous pemphigoid (often characterized, e.g., by IgG and complement in basement membrane), Sjogren's syndrome (often characterized, e.g., by multiple tissue antibodies, and/or a specific nonhistone ANA (SS-B)), diabetes mellitus (often characterized, e.g., by cell-mediated and humoral islet cell antibodies), and adrenergic drug resistance (including adrenergic drug resistance with asthma or cystic fibrosis) (often characterized, e.g., by beta-adrenergic receptor antibodies). [599] Additional disorders that may have an autoimmune component that may be treated, prevented, diagnosed and/or prognosed with the compositions of the invention include, but are not limited to, chronic active hepatitis (often characterized, e.g., by smooth muscle antibodies), primary biliary cirrhosis (often characterized, e.g., by mitochondria antibodies), other endocrine gland failure (often characterized, e.g., by specific tissue antibodies in some cases), vitiligo (often characterized, e.g., by melanocyte antibodies), vasculitis (often characterized, e.g., by Ig and complement in vessel walls and/or low serum complement), post-MI (often characterized, e.g., by myocardial antibodies), cardiotomy syndrome (often characterized, e.g., by myocardial antibodies), urticaria (often characterized, e.g., by IgG and IgM antibodies to IgE), atopic dermatitis (often characterized, e.g., by IgG and IgM antibodies to IgE), asthma (often characterized, e.g., by IgG and IgM antibodies to IgE), and many other inflammatory, granulomatous, degenerative, and atrophic disorders. [600] In a preferred embodiment, the autoimmune diseases and disorders and/or conditions associated with the diseases and disorders recited above are treated, prevented, diagnosed and/or prognosed using for example, antagonists or agonists, polypeptides or polynucleotides, or antibodies of the present invention, hi a specific preferred embodiment, rheumatoid arthritis is treated, prevented, and/or diagnosed using polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention. [601] In another specific preferred embodiment, systemic lupus erythematosus is treated, prevented, and/or diagnosed using polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention. In another specific preferred embodiment, idiopathic thrombocytopenia pvupura is treated, prevented, and/or diagnosed using polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention. [602] In another specific preferred embodiment IgA nephropathy is treated, prevented, and/or diagnosed using polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention. [603] In a preferred embodiment, the autoimmune diseases and disorders and/or conditions associated with the diseases and disorders recited above are treated, prevented, diagnosed and/or prognosed using polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention [604] In preferred embodiments, polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention are used as a immunosuppressive agent(s). [605] Polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, prognosing, and or diagnosing diseases, disorders, and/or conditions of hematopoietic cells. Polynucleotides, polypeptides, antibodies, and/or agonists or. antagonists of the present invention could be used to increase differentiation and proliferation of hematopoietic cells, including the pluripotent stem cells, in an effort to treat or prevent those diseases, disorders, and/or conditions associated with a decrease in certain (or many) types hematopoietic cells, including but not limited to, leukopenia, neutropenia, anemia, and thrombocytopenia. Alternatively, Polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention could be used to increase differentiation and proliferation of hematopoietic cells, including the pluripotent stem cells, in an effort to treat or prevent those diseases, disorders, and/or conditions associated with an increase in certain (or many) types of hematopoietic cells, including but not limited to, histiocytosis. [606] Allergic reactions and conditions, such as asthma (particularly allergic asthma) or other respiratory problems, may also be treated, prevented, diagnosed and/or prognosed using polypeptides, antibodies, or polynucleotides of the invention, and/or agonists or antagonists thereof. Moreover, these molecules can be used to treat, prevent, prognose, and/or diagnose anaphylaxis, hypersensitivity to an antigenic molecule, or blood group incompatibility. [607] Additionally, polypeptides or polynucleotides of the invention, and/or agonists or antagonists thereof, may be used to treat, prevent, diagnose and/or prognose IgE-mediated allergic reactions. Such allergic reactions include, but are not limited to, asthma, rhinitis, and eczema. In specific embodiments, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be used to modulate IgE concentrations in vitro or in vivo. [608] Moreover, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention have uses in the diagnosis, prognosis, prevention, and/or treatment of inflammatory conditions. For example, since polypeptides, antibodies, or polynucleotides of the invention, and/or agonists or antagonists of the invention may inhibit the activation, proliferation and/or differentiation of cells involved in an inflammatory response, these molecules can be used to prevent and/or treat chronic and acute inflammatory conditions. Such inflammatory conditions include, but are not limited to, for example, inflammation associated with infection (e.g., septic shock, sepsis, or systemic inflammatory response syndrome), ischemia-reperfusion injury, endotoxin lethality, complement-mediated hyperacute rejection, nephritis, cytokine or chemokine induced lung injury, inflammatory bowel disease, Crohn's disease, over production of cytokines (e.g., TNF or EL-L), respiratory disorders (e.g., asthma and allergy); gastrointestinal disorders (e.g., inflammatory bowel disease); cancers (e.g., gastric, ovarian, lung, bladder, liver, and breast); CNS disorders (e.g., multiple sclerosis; ischemic brain injury and/or stroke, traumatic brain injury, neurodegenerative disorders (e.g., Parkinson's disease and Alzheimer's disease); AflDS- related dementia; and prion disease); cardiovascular disorders (e.g., atherosclerosis, myocarditis, cardiovascular disease, and cardiopulmonary bypass complications); as well as many additional diseases, conditions, and disorders that are characterized by inflammation (e.g., hepatitis, rheumatoid arthritis, gout, trauma, pancreatitis, sarcoidosis, dermatitis, renal ischemia-reperfusion injury, Grave's disease, systemic lupus erythematosus, diabetes mellitus, and allogenic transplant rejection). [609] Because inflammation is a fundamental defense mechanism, inflammatory disorders can effect virtually any tissue of the body. Accordingly, polynucleotides, polypeptides, and antibodies of the invention, as well as agonists or antagonists thereof, have uses in the treatment of tissue-specific inflammatory disorders, including, but not limited to, adrenalitis, alveolitis, angiocholecystitis, appendicitis, balanitis, blepharitis, bronchitis, bursitis, carditis, cellulitis, cervicitis, cholecystitis, chorditis, cochlitis, colitis, conjunctivitis, cystitis, dermatitis, diverticulitis, encephalitis, endocarditis, esophagitis, eustachitis, fibrositis, folliculitis, gastritis, gastroenteritis, gingivitis, glossitis, hepatosplenitis, keratitis, labyrinthitis, laryngitis, lymphangitis, mastitis, media otitis, meningitis, metritis, mucitis, myocarditis, myosititis, myringitis, nephritis, neuritis, orchitis, osteochondritis, otitis, pericarditis, peritendonitis, peritonitis, pharyngitis, phlebitis, poliomyelitis, prostatitis, pulpitis, retinitis, rhinitis, salpingitis, scleritis, sclerochoroiditis, scrotitis, sinusitis, spondylitis, steatitis, stomatitis, synovitis, syringitis, tendonitis, tonsillitis, urethritis, and vaginitis. [610] h specific embodiments, polypeptides, antibodies, or polynucleotides of the invention, and/or agonists or antagonists thereof, are useful to diagnose, prognose, prevent, and/or treat organ transplant rejections and graft- versus-host disease. Organ rejection occurs by host immune cell destruction of the transplanted tissue through an immune response. Similarly, an immune response is also involved in GVHD, but, in this case, the foreign transplanted immune cells destroy the host tissues. Polypeptides, antibodies, or polynucleotides of the invention, and/or agonists or antagonists thereof, that inhibit an immune response, particularly the activation, proliferation, differentiation, or chemotaxis of T-cells, may be an effective therapy in preventing organ rejection or GVHD. In specific embodiments, polypeptides, antibodies, or polynucleotides of the invention, and/or agonists or antagonists thereof, that inhibit an immune response, particularly the activation, proliferation, differentiation, or chemotaxis of T-cells, may be an effective therapy in preventing experimental allergic and hyperacute xenograft rejection. [611] In other embodiments, polypeptides, antibodies, or polynucleotides of the invention, and/or agonists or antagonists thereof, are useful to diagnose, prognose, prevent, and/or treat immune complex diseases, including, but not limited to, serum sickness, post streptococcal glomerulonephritis, polyarteritis nodosa, and immune complex-induced vasculitis. [612] Polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the invention can be used to treat, detect, and/or prevent infectious agents. For example, by increasing the immune response, particularly increasing the proliferation activation and/or differentiation of B and/or T cells, infectious diseases may be treated, detected, and/or prevented. The immune response may be increased by either enhancing an existing immune response, or by initiating a new immune response. Alternatively, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may also directly inhibit the infectious agent (refer to section of application listing infectious agents, etc), without necessarily eliciting an immune response. [613] In another embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a vaccine adjuvant that enhances immune responsiveness to an antigen. In a specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an adjuvant to enhance tumor-specific immune responses. [614] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an adjuvant to enhance anti- viral immune responses. Anti-viral immune responses that may be enhanced using the compositions of the invention as an adjuvant, include virus and virus associated diseases or symptoms described herein or otherwise known in the art. fri specific embodiments, the compositions of the invention are used as an adjuvant to enhance an immune response to a virus, disease, or symptom selected from the group consisting of: ADDS, meningitis, Dengue, EBV, and hepatitis (e.g., hepatitis B). In another specific embodiment, the compositions of the invention are used as an adjuvant to enhance an immune response to a virus, disease, or symptom selected from the group consisting of: HTV/ADDS, respiratory syncytial virus, Dengue, rotavirus, Japanese B encephalitis, influenza A and B, parainfluenza, measles, cytomegalovirus, rabies, Junin, Chikungunya, Rift Valley Fever, heφes simplex, and yellow fever. [615] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an adjuvant to enhance antibacterial or anti-fungal immune responses. Anti-bacterial or anti-fungal immune responses that may be enhanced using the compositions ofthe invention as an adjuvant, include bacteria or fungus and bacteria or fungus associated diseases or symptoms described herein or otherwise known in the art. hi specific embodiments, the compositions of the invention are used as an adjuvant to enhance an immune response to a bacteria or fungus, disease, or symptom selected from the group consisting of: tetanus, Diphtheria, botulism, and meningitis type B. [616] In another specific embodiment, the compositions of the invention are used as an adjuvant to enhance an immune response to a bacteria or fungus, disease, or symptom selected from the group consisting of: Vibrio cholerae, Mycobacterium leprae, Salmonella typhi, Salmonella paratyphi, Meisseria meningitidis, Streptococcus pneumoniae, Group B streptococcus, Shigella spp., Enterotoxigenic Escherichia coli, Enterohemorrhagic E. coli, and Borrelia burgdorferi. [617] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an adjuvant to enhance anti- parasitic immune responses. Anti-parasitic immune responses that may be enhanced using the compositions of the invention as an adjuvant, include parasite and parasite associated diseases or symptoms described herein or otherwise known in the art. hi specific embodiments, the compositions of the invention are used as an adjuvant to enhance an immune response to a parasite, hi another specific embodiment, the compositions of the invention are used as an adjuvant to enhance an immune response to Plasmodium (malaria) or Leishmania. [618] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention may also be employed to treat infectious diseases including silicosis, sarcoidosis, and idiopathic pulmonary fibrosis; for example, by preventing the recruitment and activation of mononuclear phagocytes. [619] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an antigen for the generation of antibodies to inhibit or enhance immune mediated responses against polypeptides of the invention. [620] In one embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are administered to an animal (e.g., mouse, rat, rabbit, hamster, guinea pig, pigs, micro-pig, chicken, camel, goat, horse, cow, sheep, dog, cat, non- human primate, and human, most preferably human) to boost the immune system to produce increased quantities of one or more antibodies (e.g., IgG, IgA, IgM, and IgE), to induce higher affinity antibody production and immunoglobulin class switching (e.g., IgG, IgA, IgM, and IgE), and/or to increase an immune response. [621] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a stimulator of B cell responsiveness to pathogens. [622] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention are used as an activator of T cells. [623] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention are used as an agent that elevates the immune status of an individual prior to their receipt of immunosuppressive therapies. [624] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to induce higher affinity antibodies. [625] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to increase serum immunoglobulin concentrations. [626] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to accelerate recovery of immunocompromised individuals. [627] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to boost immunoresponsiveness among aged populations and/or neonates. [628] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention are used as an immune system enhancer prior to, during, or after bone marrow transplant and/or other transplants (e.g., allogeneic or xenogeneic organ transplantation). With respect to transplantation, compositions of the invention may be administered prior to, concomitant with, and/or after transplantation. In a specific embodiment, compositions of the invention are administered after transplantation, prior to the beginning of recovery of T-cell populations. In another specific embodiment, compositions of the invention are first administered after transplantation after the beginning of recovery of T cell populations, but prior to full recovery of B cell populations. [629] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to boost immunoresponsiveness among individuals having an acquired loss of B cell function. Conditions resulting in an acquired loss of B cell function that may be ameliorated or treated by administering the polypeptides, antibodies, polynucleotides and/or agonists or antagonists thereof, include, but are not limited to, HtV Infection, ADDS, bone marrow transplant, and B cell chronic lymphocytic leukemia (CLL). [630] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to boost immunoresponsiveness among individuals having a temporary immune deficiency. Conditions resulting in a temporary immune deficiency that may be ameliorated or treated by administering the polypeptides, antibodies, polynucleotides and/or agonists or antagonists thereof, include, but are not limited to, recovery from viral infections (e.g., influenza), conditions associated with malnutrition, recovery from infectious mononucleosis, or conditions associated with stress, recovery from measles, recovery from blood transfusion, and recovery from surgery. [631] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention are used as a regulator of antigen presentation by monocytes, dendritic cells, and/or B-cells. hi one embodiment, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention enhance antigen presentation or antagonizes antigen presentation in vitro or in vivo. Moreover, in related embodiments, said enhancement or antagonism of antigen presentation may be useful as an anti-tumor treatment or to modulate the immune system. [632] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as an agent to direct an individual's immune system towards development of a humoral response (i.e. TH2) as opposed to a TH1 cellular response. [633] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a means to induce tumor proliferation and thus make it more susceptible to anti-neoplastic agents. For example, multiple myeloma is a slowly dividing disease and is thus refractory to virtually all anti- neoplastic regimens. If these cells were forced to proliferate more rapidly their susceptibility profile would likely change. [634] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a stimulator of B cell production in pathologies such as ADDS, chronic lymphocyte disorder and/or Common Variable hnmunodificiency. [635] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a therapy for generation and/or regeneration of lymphoid tissues following surgery, trauma or genetic defect. In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used in the pretreatment of bone marrow samples prior to transplant. [636] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a gene-based therapy for genetically inherited disorders resulting in immuno-incompetence/immunodeficiency such as observed among SCDD patients. [637] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a means of activating monocytes/macrophages to defend against parasitic diseases that effect monocytes such as Leishmania. [638] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a means of regulating secreted cytokines that are elicited by polypeptides ofthe invention. [639] In another embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used in one or more of the applications decribed herein, as they may apply to veterinary medicine. [640] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a means of blocking various aspects of immune responses to foreign agents or self. Examples of diseases or conditions in which blocking of certain aspects of immune responses may be desired include autoimmune disorders such as lupus, and arthritis, as well as immunoresponsiveness to skin allergies, inflammation, bowel disease, injury and diseases/disorders associated with pathogens. [641] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention are used as a therapy for preventing the B cell proliferation and Ig secretion associated with autoimmune diseases such as idiopathic thrombocytopenic puφura, systemic lupus erythematosus and multiple sclerosis. [642] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a inhibitor of B and/or T cell migration in endothelial cells. This activity disrupts tissue architecture or cognate responses and is useful, for example in disrupting immune responses, and blocking sepsis. [643] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a therapy for chronic hypergammaglobulinemia evident in such diseases as monoclonal gammopathy of undetermined significance (MGUS), Waldenstrom's disease, related idiopathic monoclonal gammopathies, and plasmacytomas. [644] h another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention may be employed for instance to inhibit polypeptide chemotaxis and activation of macrophages and their precursors, and of neutrophils, basophils, B lymphocytes and some T-cell subsets, e.g., activated and CD8 cytotoxic T cells and natural killer cells, in certain autoimmune and chronic inflammatory and infective diseases. Examples of autoimmune diseases are described herein and include multiple sclerosis, and insulin-dependent diabetes. [645] The polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention may also be employed to treat idiopathic hyper-eosinophilic syndrome by, for example, preventing eosinophil production and migration. [646] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used to enhance or inhibit complement mediated cell lysis. [647] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used to enhance or inhibit antibody dependent cellular cytotoxicity. [648] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention may also be employed for treating atherosclerosis, for example, by preventing monocyte infiltration in the artery wall. [649] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention may be employed to treat adult respiratory distress syndrome (ARDS). [650] hi another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention may be useful for stimulating wound and tissue repair, stimulating angiogenesis, and/or stimulating the repair of vascular or lymphatic diseases or disorders. Additionally, agonists and antagonists of the invention may be used to stimulate the regeneration of mucosal surfaces. [651] h a specific embodiment, polynucleotides or polypeptides, and/or agonists thereof are used to diagnose, prognose, treat, and/or prevent a disorder characterized by primary or acquired immunodeficiency, deficient serum immunoglobulin production, recurrent infections, and/or immune system dysfunction. Moreover, polynucleotides or polypeptides, and/or agonists thereof may be used to treat or prevent infections of the joints, bones, skin, and/or parotid glands, blood-borne infections (e.g., sepsis, meningitis, septic arthritis, and/or osteomyelitis), autoimmune diseases (e.g., those disclosed herein), inflammatory disorders, and malignancies, and/or any disease or disorder or condition associated with these infections, diseases, disorders and/or malignancies) including, but not limited to, CVDD, other primary immune deficiencies, HJN disease, CLL, recurrent bronchitis, sinusitis, otitis media, conjunctivitis, pneumonia, hepatitis, meningitis, heφes zoster (e.g., severe heφes zoster), and/or pneumocystis carnii. Other diseases and disorders that may be prevented, diagnosed, prognosed, and/or treated with polynucleotides or polypeptides, and/or agonists ofthe present invention include, but are not limited to, H V infection, HTLV-BLV infection, lymphopenia, phagocyte bactericidal dysfunction anemia, thrombocytopenia, and hemoglobinuria. [652] In another embodiment, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention are used to treat, and/or diagnose an individual having common variable immunodeficiency disease ("CVDD"; also known as "acquired agammaglobulinemia" and "acquired hypogammaglobulinemia") or a subset of this disease. [653] In a specific embodiment, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be used to diagnose, prognose, prevent, and/or treat cancers or neoplasms including immune cell or immune tissue-related cancers or neoplasms. Examples of cancers or neoplasms that may be prevented, diagnosed, or treated by polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention include, but are not limited to, acute myelogenous leukemia, chronic myelogenous leukemia, Hodgkin's disease, non-Hodgkin's lymphoma, acute lymphocytic anemia (ALL) Chronic lymphocyte leukemia, plasmacytomas, multiple myeloma, Burkitt's lymphoma, EBV-transformed diseases, and/or diseases and disorders described in the section entitled "Hypeφroliferative Disorders" elsewhere herein. [654] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a therapy for decreasing cellular proliferation of Large B-cell Lymphomas. [655] In another specific embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are used as a means of decreasing the involvement of B cells and Ig associated with Chronic Myelogenous Leukemia. [656] In specific embodiments, the compositions ofthe invention are used as an agent to boost immunoresponsiveness among B cell immunodeficient individuals, such as, for example, an individual who has undergone a partial or complete splenectomy. [657] Antagonists of the invention include, for example, binding and/or inhibitory antibodies, antisense nucleic acids, ribozymes or soluble forms of the polypeptides of the present invention (e.g., Fc fusion protein; see,, e.g., Example 9). Agonists of the invention include, for example, binding or stimulatory antibodies, and soluble forms of the polypeptides (e.g., Fc fusion proteins; see, e.g., Example 9). polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention may be employed in a composition with a pharmaceutically acceptable carrier, e.g., as described herein. [658] In another embodiment, polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention are administered to an animal (including, but not limited to, those listed above, and also including transgenic animals) incapable of producing functional endogenous antibody molecules or having an otherwise compromised endogenous immune system, but which is capable of producing human immunoglobulin molecules by means of a reconstituted or partially reconstituted immune system from another animal (see, e.g., published PCT Application Nos. WO98/24893, WO/9634096, WO/9633735, and WO/9110741). Administration of polypeptides, antibodies, polynucleotides and/or agonists or antagonists of the present invention to such animals is useful for the generation of monoclonal antibodies against the polypeptides, antibodies, polynucleotides and/or agonists or antagonists ofthe present invention. Blood-Related Disorders [659] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be used to modulate hemostatic (the stopping of bleeding) or thrombolytic (clot dissolving) activity. For example, by increasing hemostatic or thrombolytic activity, polynucleotides or polypeptides, and/or agonists or antagonists of the present invention could be used to treat or prevent blood coagulation diseases, disorders, and/or conditions (e.g., afibrinogenemia, factor deficiencies, hemophilia), blood platelet diseases, disorders, and/or conditions (e.g., thrombocytopenia), or wounds resulting from trauma, surgery, or other causes. Alternatively, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention that can decrease hemostatic or thrombolytic activity could be used to inhibit or dissolve clotting. These molecules could be important in the treatment or prevention of heart attacks (infarction), strokes, or scarring. [660] hi specific embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be used to prevent, diagnose, prognose, and/or treat thrombosis, arterial thrombosis, venous thrombosis, thromboembolism, pulmonary embolism, atherosclerosis, myocardial infarction, transient ischemic attack, unstable angina, hi specific embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be used for the prevention of occulsion of saphenous grafts, for reducing the risk of periprocedural thrombosis as might accompany angioplasty procedures, for reducing the risk of stroke in patients with atrial fibrillation including nonrheumatic atrial fibrillation, for reducing the risk of embolism associated with mechanical heart valves and or mitral valves disease. Other uses for the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention, include, but are not limited to, the prevention of occlusions in extrcoφoreal devices (e.g., intravascular canulas, vascular access shunts in hemodialysis patients, hemodialysis machines, and cardiopulmonary bypass machines). [661] In another embodiment, a polypeptide of the invention, or polynucleotides, antibodies, agonists, or antagonists corresponding to that polypeptide, may be used to prevent, diagnose, prognose, and/or treat diseases and disorders of the blood and/or blood forming organs associated with the tissue(s) in which the polypeptide of the invention is expressed, including one, two, three, four, five, or more tissues disclosed in Table 10, column 2 (Library Code). [662] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention maybe used to modulate hematopoietic activity (the formation of blood cells). For example, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be used to increase the quantity of all or subsets of blood cells, such as, for example, erythrocytes, lymphocytes (B or T cells), myeloid cells (e.g., basophils, eosinophils, neutrophils, mast cells, macrophages) and platelets. The ability to decrease the quantity of blood cells or subsets of blood cells may be useful in the prevention, detection, diagnosis and/or treatment of anemias and leukopenias described below. Alternatively, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be used to decrease the quantity of all or subsets of blood cells, such as, for example, erythrocytes, lymphocytes (B or T cells), myeloid cells (e.g., basophils, eosinophils, neutrophils, mast cells, macrophages) and platelets.. The ability to decrease the quantity of blood cells or subsets of blood cells may be useful in the prevention, detection, diagnosis and/or treatment of leukocytoses, such as, for example eosinophilia. [663] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be used to prevent, treat, or diagnose blood dyscrasia. [664] Anemias are conditions in which the number of red blood cells or amount of hemoglobin (the protein that carries oxygen) in them is below normal. Anemia may be caused by excessive bleeding, decreased red blood cell production, or increased red blood cell destruction (hemolysis). The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, and/or diagnosing anemias. Anemias that may be treated prevented or diagnosed by the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention include iron deficiency anemia, hypochromic anemia, microcytic anemia, chlorosis, hereditary siderob;astic anemia, idiopathic acquired sideroblastic anemia, red cell aplasia, megaloblastic anemia (e.g., pernicious anemia, (vitamin B12 deficiency) and folic acid deficiency anemia), aplastic anemia, hemolytic anemias (e.g., autoimmune helolytic anemia, microangiopathic hemolytic anemia, and paroxysmal nocturnal hemoglobinuria). The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, and/or diagnosing anemias associated with diseases including but not limited to, anemias associated with systemic lupus erythematosus, cancers, lymphomas, chronic renal disease, and enlarged spleens. The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, and/or diagnosing anemias arising from drug treatments such as anemias associated with methyldopa, dapsone, and/or sulfadrugs. Additionally, rhe polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, and/or diagnosing anemias associated with abnormal red blood cell architecture including but not limited to, hereditary spherocytosis, hereditary elliptocytosis, glucose-6-phosphate dehydrogenase deficiency, and sickle cell anemia. [665] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be useful in treating, preventing, and/or diagnosing hemoglobin abnormalities, (e.g., those associated with sickle cell anemia, hemoglobin C disease, hemoglobin S-C disease, and hemoglobin E disease). Additionally, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating thalassemias, including, but not limited to major and minor forms of alpha-thalassemia and beta-thalassemia. [666] hi another embodiment, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating bleeding disorders including, but not limited to, thrombocytopenia (e.g., idiopathic thrombocytopenic puφura, and thrombotic thrombocytopenic puφura), Von Willebrand's disease, hereditary platelet disorders (e.g., storage pool disease such as Chediak-Higashi and Hermansky-Pudlak syndromes, thromboxane A2 dysfunction, thromboasthenia, and Bernard-Soulier syndrome), hemolytic-uremic syndrome, hemophelias such as hemophelia A or Factor VII deficiency and Christmas disease or Factor EX deficiency, Hereditary Hemorhhagic Telangiectsia, also known as Rendu-Osler- Weber syndrome, allergic puφura (Henoch Schonlein puφura) and disseminated intravascular coagulation. [667] The effect of the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention on the clotting time of blood may be monitored using any of the clotting tests known in the art including, but not limited to, whole blood partial thromboplastin time (PTT), the activated partial thromboplastin time (aPTT), the activated clotting time (ACT), the recalcified activated clotting time, or the Lee- White Clotting time. [668] Several diseases and a variety of drugs can cause platelet dysfunction. Thus, in a specific embodiment, the polynucleotides, polypeptides, antibodies, and or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating acquired platelet dysfunction such as platelet dysfunction accompanying kidney failure, leukemia, multiple myeloma, cirrhosis of the liver, and systemic lupus erythematosus as well as platelet dysfunction associated with drug treatments, including treatment with aspirin, ticlopidine, nonsteroidal anti-inflammatory drugs (used for arthritis, pain, and sprains), and penicillin in high doses. [669] In another embodiment, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating diseases and disorders characterized by or associated with increased or decreased numbers of white blood cells. Leukopenia occurs when the number of white blood cells decreases below normal. Leukopenias include, but are not limited to, neutropenia and lymphocytopenia. An increase in the number of white blood cells compared to normal is known as leukocytosis. The body generates increased numbers of white blood cells during infection. Thus, leukocytosis may simply be a normal physiological parameter that reflects infection. Alternatively, leukocytosis may be an indicator of injury or other disease such as cancer. Leokocytoses, include but are not limited to, eosinophilia, and accumulations of macrophages. In specific embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating leukopenia. In other specific embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating leukocytosis. [670] Leukopenia may be a generalized decreased in all types of white blood cells, or may be a specific depletion of particular types of white blood cells. Thus, in specific embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating decreases in neutrophil numbers, known as neutropenia. Neutropenias that may be diagnosed, prognosed, prevented, and/or treated by the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention include, but are not limited to, infantile genetic agranulocytosis, familial neutropenia, cyclic neutropenia, neutropenias resulting from or associated with dietary deficiencies (e.g., vitamin B 12 deficiency or folic acid deficiency), neutropenias resulting from or associated with drug treatments (e.g., antibiotic regimens such as penicillin treatment, sulfonamide treatment, anticoagulant treatment, anticonvulsant drugs, anti-thyroid drugs, and cancer chemotherapy), and neutropenias resulting from increased neutrophil destruction that may occur in association with some bacterial or viral infections, allergic disorders, autoimmune diseases, conditions in which an individual has an enlarged spleen (e.g., Felty syndrome, malaria and sarcoidosis), and some drug treatment regimens. [671] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be useful in diagnosing, prognosing, preventing, and/or freating lymphocytopenias (decreased numbers of B and/or T lymphocytes), including, but not limited lymphocytopenias resulting from or associated with stress, drug treatments (e.g., drag treatment with corticosteroids, cancer chemotherapies, and/or radiation therapies), ADDS infection and/or other diseases such as, for example, cancer, rheumatoid arthritis, systemic lupus erythematosus, chronic infections, some viral infections and/or hereditary disorders (e.g., DiGeorge syndrome, Wiskott-Aldrich Syndome, severe combined immunodeficiency, ataxia telangiectsia). [672] The polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be useful in diagnosing, prognosing, preventing, and/or treating diseases and disorders associated with macrophage numbers and/or macrophage function including, but not limited to, Gaucher's disease, Niemann-Pick disease, Letterer-Siwe disease and Hand-Schuller-Christian disease. [673] h another embodiment, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating diseases and disorders associated with eosinophil numbers and/or eosinophil function including, but not limited to, idiopathic hypereosinophilic syndrome, eosinophilia-myalgia syndrome, and Hand-Schuller-Christian disease. [674] In yet another embodiment, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating leukemias and lymphomas including, but not limited to, acute lymphocytic (lymphpblastic) leukemia (ALL), acute myeloid (myelocytic, myelogenous, myeloblastic, or myelomonocytic) leukemia, chronic lymphocytic leukemia (e.g., B cell leukemias, T cell leukemias, Sezary syndrome, and Hairy cell leukenia), chronic myelocytic (myeloid, myelogenous, or granulocytic) leukemia, Hodgkin's lymphoma, non-hodgkin's lymphoma, Burkitt's lymphoma, and mycosis fungoides. [675] hi other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in diagnosing, prognosing, preventing, and/or treating diseases and disorders of plasma cells including, but not limited to, plasma cell dyscrasias, monoclonal gammaopathies, monoclonal gammopathies of undetermined significance, multiple myeloma, macroglobulinemia, Waldenstrom's macroglobulinemia, cryoglobulinemia, and Raynaud's phenomenon. [676] In other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in treating, preventing, and/or diagnosing myeloproliferative disorders, including but not limited to, polycythemia vera, relative polycythemia, secondary polycythemia, myelofibrosis, acute myelofibrosis, agnogenic myelod metaplasia, thrombocythemia, (including both primary and seconday thrombocythemia) and chronic myelocytic leukemia. [677] In other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists ofthe present invention may be useful as a treatment prior to surgery, to increase blood cell production. [678] In other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful as an agent to enhance the migration, phagocytosis, superoxide production, antibody dependent cellular cytotoxicity of neutrophils, eosionophils and macrophages. [679] In other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful as an agent to increase the number of stem cells in circulation prior to stem cells pheresis. hi another specific embodiment, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful as an agent to increase the number of stem cells in circulation prior to platelet pheresis. [680] In other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful as an agent to increase cytokine production. [681] In other embodiments, the polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention may be useful in preventing, diagnosing, and/or treating primary hematopoietic disorders. Hypeφroliferative Disorders [682] In certain embodiments, polynucleotides or polypeptides, or agonists or antagonists of the present invention can be used to treat or detect hypeφroliferative disorders, including neoplasms. Polynucleotides or polypeptides, or agonists or antagonists of the present invention may inhibit the proliferation of the disorder through direct or indirect interactions. Alternatively, Polynucleotides or polypeptides, or agonists or antagonists of the present invention may proliferate other cells which can inhibit the hypeφroliferative disorder. [683] For example, by increasing an immune response, particularly increasing antigenic qualities of the hypeφroliferative disorder or by proliferating, differentiating, or mobilizing T-cells, hypeφroliferative disorders can be treated. This immune response may be increased by either enhancing an existing immune response, or by initiating a new immune response. Alternatively, decreasing an immune response may also be a method of treating hypeφroliferative disorders, such as a chemotherapeutic agent. [684] Examples of hypeφroliferative disorders that can be treated or detected by polynucleotides or polypeptides, or agonists or antagonists of the present invention include, but are not limited to neoplasms located in the: colon, abdomen, bone, breast, digestive system, liver, pancreas, peritoneum, endocrine glands (adrenal, parathyroid, pituitary, testicles, ovary, thymus, thyroid), eye, head and neck, nervous (central and peripheral), lymphatic system, pelvis, skin, soft tissue, spleen, thorax, and urogenital tract. [685] Similarly, other hypeφroliferative disorders can also be treated or detected by polynucleotides or polypeptides, or agonists or antagonists of the present invention. Examples of such hypeφroliferative disorders include, but are not limited to: Acute Childhood Lymphoblastic Leukemia, Acute Lymphoblastic Leukemia, Acute Lymphocytic Leukemia, Acute Myeloid Leukemia, Adrenocortical Carcinoma, Adult (Primary) Hepatocellular Cancer, Adult (Primary) Liver Cancer, Adult Acute Lymphocytic Leukemia, Adult Acute Myeloid Leukemia, Adult Hodgkin's Disease, Adult Hodgkin's Lymphoma, Adult Lymphocytic Leukemia, Adult Non-Hodgkin's Lymphoma, Adult Primary Liver Cancer, Adult Soft Tissue Sarcoma, ADDS-Related Lymphoma, ADDS-Related Malignancies, Anal Cancer, Astrocytoma, Bile Duct Cancer, Bladder Cancer, Bone Cancer, Brain Stem Glioma, Brain Tumors, Breast Cancer, Cancer of the Renal Pelvis and Ureter, Central Nervous System (Primary) Lymphoma, Central Nervous System Lymphoma, Cerebellar Astrocytoma, Cerebral Astrocytoma, Cervical Cancer, Childhood (Primary) Hepatocellular Cancer, Childhood (Primary) Liver Cancer, Childhood Acute Lymphoblastic Leukemia, Childhood Acute Myeloid Leukemia, Childhood Brain Stem Glioma, Childhood Cerebellar Astrocytoma, Childhood Cerebral Astrocytoma, Childhood Extracranial Germ Cell Tumors, Childhood Hodgkin's Disease, Childhood Hodgkin's Lymphoma, Childhood Hypothalamic and Visual Pathway Glioma, Childhood Lymphoblastic Leukemia, Childhood Medulloblastoma, Childhood Non-Hodgkin's Lymphoma, Childhood Pineal and Supratentorial Primitive Neuroectodermal Tumors, Childhood Primary Liver Cancer, Childhood Rhabdomyosarcoma, Childhood Soft Tissue Sarcoma, Childhood Visual Pathway and Hypothalamic Glioma, Chronic Lymphocytic Leukemia, Chronic Myelogenous Leukemia, Colon Cancer, Cutaneous T-Cell Lymphoma, Endocrine Pancreas Islet Cell Carcinoma, Endometrial Cancer, Ependymoma, Epithelial Cancer, Esophageal Cancer, Ewing's Sarcoma and Related Tumors, Exocrine Pancreatic Cancer, Extracranial Germ Cell Tumor, Extragonadal Germ Cell Tumor, Extrahepatic Bile Duct Cancer, Eye Cancer, Female Breast Cancer, Gaucher's Disease, Gallbladder Cancer, Gastric Cancer, Gastrointestinal Carcinoid Tumor, Gastrointestinal Tumors, Germ Cell Tumors, Gestational Trophoblastic Tumor, Hairy Cell Leukemia, Head and Neck Cancer, Hepatocellular Cancer, Hodgkin's Disease, Hodgkin's Lymphoma, Hypergammaglobulinemia, Hypopharyngeal Cancer, Intestinal Cancers, Intraocular Melanoma, Islet Cell Carcinoma, Islet Cell Pancreatic Cancer, Kaposi's Sarcoma, Kidney Cancer, Laryngeal Cancer, Lip and Oral Cavity Cancer, Liver Cancer, Lung Cancer, Lymphoproliferative Disorders, Macroglobulinemia, Male Breast Cancer, Malignant Mesothehoma, Malignant Thymoma, Medulloblastoma, Melanoma, Mesothehoma, Metastatic Occult Primary Squamous Neck Cancer, Metastatic Primary Squamous Neck Cancer, Metastatic Squamous Neck Cancer, Multiple Myeloma, Multiple Myeloma/Plasma Cell Neoplasm, Myelodysplastic Syndrome, Myelogenous Leukemia, Myeloid Leukemia, Myeloproliferative Disorders, Nasal Cavity and Paranasal Sinus Cancer, Nasopharyngeal Cancer, Neuroblastoma, Non-Hodgkin's Lymphoma During Pregnancy, Nonmelanoma Skin Cancer, Non-Small Cell Lung Cancer, Occult Primary Metastatic Squamous Neck Cancer, Oropharyngeal Cancer, Osteo-ZMalignant Fibrous Sarcoma, Osteosarcoma/Malignant Fibrous Histiocytoma, Osteosarcoma/Malignant Fibrous Histiocytoma of Bone, Ovarian Epithelial Cancer, Ovarian Germ Cell Tumor, Ovarian Low Malignant Potential Tumor, Pancreatic Cancer, Paraprotememias, Puφura, Parathyroid Cancer, Penile Cancer, Pheochromocytoma, Pituitary Tumor, Plasma Cell Neoplasm/Multiple Myeloma, Primary Central Nervous System Lymphoma, Primary Liver Cancer, Prostate Cancer, Rectal Cancer, Renal Cell Cancer, Renal Pelvis and Ureter Cancer, Retinoblastoma, Rhabdomyosarcoma, Salivary Gland Cancer, Sarcoidosis Sarcomas, Sezary Syndrome, Skin Cancer, Small Cell Lung Cancer, Small Intestine Cancer, Soft Tissue Sarcoma, Squamous Neck Cancer, Stomach Cancer, Supratentorial Primitive Neuroectodermal and Pineal Tumors, T-Cell Lymphoma, Testicular Cancer, Thymoma, Thyroid Cancer, Transitional Cell Cancer of the Renal Pelvis and Ureter, Transitional Renal Pelvis and Ureter Cancer, Trophoblastic Tumors, Ureter and Renal Pelvis Cell Cancer, Urethral Cancer, Uterine Cancer, Uterine Sarcoma, Vaginal Cancer, Visual Pathway and Hypothalamic Glioma, Vulvar Cancer, Waldenstrom's Macroglobulinemia, Wilms' Tumor, and any other hypeφroliferative disease, besides neoplasia, located in an organ system listed above. [686] In another preferred embodiment, polynucleotides or polypeptides, or agonists or antagonists of the present invention are used to diagnose, prognose, prevent, and/or treat premalignant conditions and to prevent progression to a neoplastic or malignant state, including but not limited to those disorders described above. Such uses are indicated in conditions known or suspected of preceding progression to neoplasia or cancer, in particular, where non-neoplastic cell growth consisting of hypeφlasia, metaplasia, or most particularly, dysplasia has occurred (for review of such abnormal growth conditions, see Robbins and Angell, 1976, Basic Pathology, 2d Ed., W. B. Saunders Co., Philadelphia, pp. 68-79.) [687] Hypeφlasia is a form of controlled cell proliferation, involving an increase in cell number in a tissue or organ, without significant alteration in structure or function. Hypeφlastic disorders which can be diagnosed, prognosed, prevented, and/or treated with compositions of the invention (including polynucleotides, polypeptides, agonists or antagonists) include, but are not limited to, angiofollicular mediastinal lymph node hypeφlasia, angiolymphoid hypeφlasia with eosinophilia, atypical melanocytic hypeφlasia, basal cell hypeφlasia, benign giant lymph node hypeφlasia, cementum hypeφlasia, congenital adrenal hypeφlasia, congenital sebaceous hypeφlasia, cystic hypeφlasia, cystic hypeφlasia of the breast, denture hypeφlasia, ductal hypeφlasia, endometrial hypeφlasia, fibromuscular hypeφlasia, focal epithelial hypeφlasia, gingival hypeφlasia, inflammatory fibrous hypeφlasia, inflammatory papillary hypeφlasia, intravascular papillary endothelial hypeφlasia, nodular hypeφlasia of prostate, nodular regenerative hypeφlasia, pseudoepitheliomatous hypeφlasia, senile sebaceous hypeφlasia, and verrucous hypeφlasia. [688] Metaplasia is a form of controlled cell growth in which one type of adult or fully differentiated cell substitutes for another type of adult cell. Metaplastic disorders which can be diagnosed, prognosed, prevented, and/or treated with compositions of the invention (including polynucleotides, polypeptides, agonists or antagonists) include, but are not limited to, agnogenic myeloid metaplasia, apocrine metaplasia, atypical metaplasia, autoparenchymatous metaplasia, connective tissue metaplasia, epithelial metaplasia, intestinal metaplasia, metaplastic anemia, metaplastic ossification, metaplastic polyps, myeloid metaplasia, primary myeloid metaplasia, secondary myeloid metaplasia, squamous metaplasia, squamous metaplasia of amnion, and symptomatic myeloid metaplasia. [689] Dysplasia is frequently a forerunner of cancer, and is found mainly in the epithelia; it is the most disorderly form of non-neoplastic cell growth, involving a loss in individual cell uniformity and in the architectural orientation of cells. Dysplastic cells often have abnormally large, deeply stained nuclei, and exhibit pleomoφhism. Dysplasia characteristically occurs where there exists chronic irritation or inflammation. Dysplastic disorders which can be diagnosed, prognosed, prevented, and/or treated with compositions of the invention (including polynucleotides, polypeptides, agonists or antagonists) include, but are not limited to, anhidrotic ectodermal dysplasia, anterofacial dysplasia, asphyxiating thoracic dysplasia, atriodigital dysplasia, bronchopulmonary dysplasia, cerebral dysplasia, cervical dysplasia, chondroectodermal dysplasia, cleidocranial dysplasia, congenital ectodermal dysplasia, craniodiaphysial dysplasia, craniocaφotarsal dysplasia, craniometaphysial dysplasia, dentin dysplasia, diaphysial dysplasia, ectodermal dysplasia, enamel dysplasia, encephalo- ophthalmic dysplasia, dysplasia epiphysialis hemimelia, dysplasia epiphysialis multiplex, dysplasia epiphysialis punctata, epithelial dysplasia, faciodigitogenital dysplasia, familial fibrous dysplasia of jaws, familial white folded dysplasia, fibromuscular dysplasia, fibrous dysplasia of bone, florid osseous dysplasia, hereditary renal-retinal dysplasia, hidrotic ectodermal dysplasia, hypohidrotic ectodermal dysplasia, lymphopenic thymic dysplasia, mammary dysplasia, mandibulofacial dysplasia, metaphysial dysplasia, Mondini dysplasia, monostotic fibrous dysplasia, mucoepithelial dysplasia, multiple epiphysial dysplasia, oculoauriculovertebral dysplasia, oculodentodigital dysplasia, oculovertebral dysplasia, odontogenic dysplasia, ophthalmomandibulomelic dysplasia, periapical cemental dysplasia, polyostotic fibrous dysplasia, pseudoachondroplastic spondyloepiphysial dysplasia, retinal dysplasia, septo-optic dysplasia, spondyloepiphysial dysplasia, and ventriculoradial dysplasia. [690] Additional pre-neoplastic disorders which can be diagnosed, prognosed, prevented, and/or treated with compositions of the invention (including polynucleotides, polypeptides, agonists or antagonists) include, but are not limited to, benign dysproliferative disorders (e.g., benign tumors, fibrocystic conditions, tissue hypertrophy, intestinal polyps, colon polyps, and esophageal dysplasia), leukoplakia, keratoses, Bowen's disease, Farmer's Skin, solar cheilitis, and solar keratosis. [691] hi another embodiment, a polypeptide of the invention, or polynucleotides, antibodies, agonists, or antagonists corresponding to that polypeptide, may be used to diagnose and/or prognose disorders associated with the tissue(s) in which the polypeptide of the invention is expressed, including one, two, three, four, five, or more tissues disclosed in Table 10, column 2 (Library Code). [692] In another embodiment, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention conjugated to a toxin or a radioactive isotope, as described herein, may be used to treat cancers and neoplasms, including, but not limited to those described herein. In a further preferred embodiment, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention conjugated to a toxin or a radioactive isotope, as described herein, may be used to treat acute myelogenous leukemia. [693] Additionally, polynucleotides, polypeptides, and/or agonists or antagonists of the invention may affect apoptosis, and therefore, would be useful in treating a number of diseases associated with increased cell survival or the inhibition of apoptosis. For example, diseases associated with increased cell survival or the inhibition of apoptosis that could be diagnosed, prognosed, prevented, and/or treated by polynucleotides, polypeptides, and/or agonists or antagonists of the invention, include cancers (such as follicular lymphomas, carcinomas with p53 mutations, and hormone-dependent tumors, including, but not limited to colon cancer, cardiac tumors, pancreatic cancer, melanoma, retinoblastoma, glioblastoma, lung cancer, intestinal cancer, testicular cancer, stomach cancer, neuroblastoma, myxonia, myoma, lymphoma, endothelioma, osteoblastoma, osteoclastoma, osteosarcoma, chondrosarcoma, adenoma, breast cancer, prostate cancer, Kaposi's sarcoma and ovarian cancer); autoimmune disorders such as, multiple sclerosis, Sjogren's syndrome, Hashimoto's thyroiditis, biliary cirrhosis, Behcet's disease, Crohn's disease, polymyositis, systemic lupus erythematosus and immune-related glomerulonephritis and rheumatoid arthritis) and viral infections (such as heφes viruses, pox viruses and adenoviruses), inflammation, graft v. host disease, acute graft rejection, and chronic graft rejection. [694] In preferred embodiments, polynucleotides, polypeptides, and/or agonists or antagonists of the invention are used to inhibit growth, progression, and/or metastasis of cancers, in particular those listed above. [695] Additional diseases or conditions associated with increased cell survival that could be diagnosed, prognosed, prevented, and/or treated by polynucleotides, polypeptides, and/or agonists or antagonists of the invention, include, but are not limited to, progression, and/or metastases of malignancies and related disorders such as leukemia (including acute leukemias (e.g., acute lymphocytic leukemia, acute myelocytic leukemia (including myeloblastic, promyelocytic, myelomonocytic, monocytic, and erythroleukemia)) and chronic leukemias (e.g., chronic myelocytic (granulocytic) leukemia and chronic lymphocytic leukemia)), polycythemia vera, lymphomas (e.g., Hodgkin's disease and non-Hodgkin's disease), multiple myeloma, Waldenstrom's macroglobulinemia, heavy chain disease, and solid tumors including, but not limited to, sarcomas and carcinomas such as fibrosarcoma, myxosarcoma, liposarcoma, chondrosarcoma, osteogenic sarcoma, chordoma, angiosarcoma, endotheliosarcoma, lymphangiosarcoma, lymphangioendotheliosarcoma, synovioma, mesothehoma, Ewing's tumor, leiomyosarcoma, rhabdomyosarcoma, colon carcinoma, pancreatic cancer, breast cancer, ovarian cancer, prostate cancer, squamous cell carcinoma, basal cell carcinoma, adenocarcinoma, sweat gland carcinoma, sebaceous gland carcinoma, papillary carcinoma, papillary adenocarcinomas, cystadenocarcinoma, medullary carcinoma, bronchogenic carcinoma, renal cell carcinoma, hepatoma, bile duct carcinoma, choriocarcinoma, seminoma, embryonal carcinoma, Wilm's tumor, cervical cancer, testicular tumor, lung carcinoma, small cell lung carcinoma, bladder carcinoma, epithelial carcinoma, glioma, astrocytoma, medulloblastoma, craniopharyngioma, ependymoma, pinealoma, emangioblastoma, acoustic neuroma, oligodendroglioma, menangioma, melanoma, neuroblastoma, and retinoblastoma. [696] Diseases associated with increased apoptosis that could be diagnosed, prognosed, prevented, and/or treated by polynucleotides, polypeptides, and/or agonists or antagonists of the invention, include ADDS; neurodegenerative disorders (such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, retinitis pigmentosa, cerebellar degeneration and brain tumor or prior associated disease); autoimmune disorders (such as, multiple sclerosis, Sjogren's syndrome, Hashimoto's thyroiditis, biliary cirrhosis, Behcet's disease, Crohn's disease, polymyositis, systemic lupus erythematosus and immune-related glomerulonephritis and rheumatoid arthritis) myelodysplastic syndromes (such as aplastic anemia), graft v. host disease, ischemic injury (such as that caused by myocardial infarction, stroke and reperfusion injury), liver injury (e.g., hepatitis related liver injury, ischemia/reperfusion injury, cholestosis (bile duct injury) and liver cancer); toxin-induced liver disease (such as that caused by alcohol), septic shock, cachexia and anorexia. [697] Hypeφroliferative diseases and/or disorders that could be diagnosed, prognosed, prevented, and/or treated by polynucleotides, polypeptides, and/or agonists or antagonists of the invention, include, but are not limited to, neoplasms located in the liver, abdomen, bone, breast, digestive system, pancreas, peritoneum, endocrine glands (adrenal, parathyroid, pituitary, testicles, ovary, thymus, thyroid), eye, head and neck, nervous system (central and peripheral), lymphatic system, pelvis, skin, soft tissue, spleen, thorax, and urogenital tract. [698] Similarly, other hypeφroliferative disorders can also be diagnosed, prognosed, prevented, and/or treated by polynucleotides, polypeptides, and/or agonists or antagonists of the invention. Examples of such hypeφroliferative disorders include, but are not limited to: hypergammaglobulinemia, lymphoproliferative disorders, paraprotememias, puφura, sarcoidosis, Sezary Syndrome, Waldenstron's macroglobulinemia, Gaucher's Disease, histiocytosis, and any other hypeφroliferative disease, besides neoplasia, located in an organ system listed above. [699] Another preferred embodiment utilizes polynucleotides of the present invention to inhibit aberrant cellular division, by gene therapy using the present invention, and/or protein fusions or fragments thereof. [700] Thus, the present invention provides a method for treating cell proliferative disorders by inserting into an abnormally proliferating cell a polynucleotide of the present invention, wherein said polynucleotide represses said expression. [701] Another embodiment of the present invention provides a method of treating cell- proliferative disorders in individuals comprising administration of one or more active gene copies of the present invention to an abnormally proliferating cell or cells. In a preferred embodiment, polynucleotides of the present invention is a DNA construct comprising a recombinant expression vector effective in expressing a DNA sequence encoding said polynucleotides. In another preferred embodiment of the present invention, the DNA construct encoding the poynucleotides of the present invention is inserted into cells to be treated utilizing a retrovirus, or more preferably an adenoviral vector (See G J. Nabel, et. al., PNAS 1999 96: 324-326, which is hereby incoφorated by reference), hi a most preferred embodiment, the viral vector is defective and will not transform non-proliferating cells, only proliferating cells. Moreover, in a preferred embodiment, the polynucleotides of the present invention inserted into proliferating cells either alone, or in combination with or fused to other polynucleotides, can then be modulated via an external stimulus (i.e. magnetic, specific small molecule, chemical, or drug administration, etc.), which acts upon the promoter upstream of said polynucleotides to induce expression of the encoded protein product. As such the beneficial therapeutic affect of the present invention may be expressly modulated (i.e. to increase, decrease, or inhibit expression of the present invention) based upon said external stimulus. [702] Polynucleotides ofthe present invention may be useful in repressing expression of oncogenic genes or antigens. By "repressing expression ofthe oncogenic genes " is intended the suppression of the transcription of the gene, the degradation of the gene transcript (pre- message RNA), the inhibition of splicing, the destruction of the messenger RNA, the prevention of the post-translational modifications of the protein, the destruction of the protein, or the inhibition ofthe normal function ofthe protein. [703] For local administration to abnormally proliferating cells, polynucleotides of the present invention may be administered by any method known to those of skill in the art including, but not limited to transfection, electroporation, microinjection of cells, or in vehicles such as liposomes, lipofectin, or as naked polynucleotides, or any other method described throughout the specification. The polynucleotide of the present invention may be delivered by known gene delivery systems such as, but not limited to, retroviral vectors (Gilboa, J. Virology 44:845 (1982); Hocke, Nature 320:275 (1986); Wilson, et al., Proc. Natl. Acad. Sci. U.S.A. 85:3014), vaccinia virus system (Chakrabarty et al., Mol. Cell Biol. 5:3403 (1985) or other efficient DNA delivery systems (Yates et al., Nature 313:812 (1985)) known to those skilled in the art. These references are exemplary only and are hereby incoφorated by reference. In order to specifically deliver or transfect cells which are abnormally proliferating and spare non-dividing cells, it is preferable to utilize a retroviras, or adenoviral (as described in the art and elsewhere herein) delivery system known to those of skill in the art. Since host DNA replication is required for retroviral DNA to integrate and the retroviras will be unable to self replicate due to the lack ofthe retroviras genes needed for its life cycle. Utilizing such a retroviral delivery system for polynucleotides of the present invention will target said gene and constructs to abnormally proliferating cells and will spare the non- dividing normal cells. [704] The polynucleotides of the present invention may be delivered directly to cell proliferative disorder/disease sites in internal organs, body cavities and the like by use of imaging devices used to guide an injecting needle directly to the disease site. The polynucleotides ofthe present invention may also be administered to disease sites at the time of surgical intervention. [705] By "cell proliferative disease" is meant any human or animal disease or disorder, affecting any one or any combination of organs, cavities, or body parts, which is characterized by single or multiple local abnormal proliferations of cells, groups of cells, or tissues, whether benign or malignant. [706] Any amount of the polynucleotides of the present invention may be administered as long as it has a biologically inhibiting effect on the proliferation of the treated cells. Moreover, it is possible to administer more than one of the polynucleotide of the present invention simultaneously to the same site. By "biologically inhibiting" is meant partial or total growth inhibition as well as decreases in the rate of proliferation or growth of the cells. The biologically inhibitory dose may be determined by assessing the effects of the polynucleotides of the present invention on target malignant or abnormally proliferating cell growth in tissue culture, tumor growth in animals and cell cultures, or any other method known to one of ordinary skill in the art. [707] The present invention is further directed to antibody-based therapies which involve administering of anti-polypeptides and anti-polynucleotide antibodies to a mammalian, preferably human, patient for treating one or more of the described disorders. Methods for producing anti-polypeptides and anti-polynucleotide antibodies polyclonal and monoclonal antibodies are described in detail elsewhere herein. Such antibodies may be provided in pharmaceutically acceptable compositions as known in the art or as described herein. [708] A summary of the ways in which the antibodies of the present invention may be used therapeutically includes binding polynucleotides or polypeptides of the present invention locally or systemically in the body or by direct cytotoxicity of the antibody, e.g. as mediated by complement (CDC) or by effector cells (ADCC). Some of these approaches are described in more detail below. Armed with the teachings provided herein, one of ordinary skill in the art will know how to use the antibodies of the present invention for diagnostic, monitoring or therapeutic puφoses without undue experimentation. [709] hi particular, the antibodies, fragments and derivatives ofthe present invention are useful for treating a subject having or developing cell proliferative and/or differentiation disorders as described herein. Such treatment comprises administering a single or multiple doses ofthe antibody, or a fragment, derivative, or a conjugate thereof. [710] The antibodies of this invention may be advantageously utilized in combination with other monoclonal or chimeric antibodies, or with lymphokmes or hematopoietic growth factors, for example., which serve to increase the number or activity of effector cells which interact with the antibodies. [711] It is preferred to use high affinity and/or potent in vivo inhibiting and/or neutralizing antibodies against polypeptides or polynucleotides of the present invention, fragments or regions thereof, for both immunoassays directed to and therapy of disorders related to polynucleotides or polypeptides, including fragements thereof, of the present invention. Such antibodies, fragments, or regions, will preferably have an affinity for polynucleotides or polypeptides, including fragements thereof. Preferred binding affinities include those with a dissociation constant or Kd less than 5X10 "6 M, 10 "6 M, 5X10 "7 M, 10 "7 M, 5X10 "8 M, 10- 8 M, 5X10 "9 M, 10 "9 M, 5X10 "10 M, 10 _10 M, 5X10- π M, 10- n M, 5X10 _12 M, 10 '12 M, 5X10 _13 M, 10 "13 M, 5X10 "14 M, 10 "14 M, 5X10 "15 M, and 10 "15 M. [712] Moreover, polypeptides of the present invention are useful in inhibiting the angiogenesis of proliferative cells or tissues, either alone, as a protein fusion, or in combination with other polypeptides directly or indirectly, as described elsewhere herein. In a most preferred embodiment, said anti-angiogenesis effect may be achieved indirectly, for example, through the inhibition of hematopoietic, tumor-specific cells, such as tumor- associated macrophages (See Joseph D3, et al. J Natl Cancer Just, 90(21)3648-53 (1998), which is hereby incoφorated by reference). Antibodies directed to polypeptides or polynucleotides ofthe present invention may also result in inhibition of angiogenesis directly, or indirectly (See Witte L, et al., Cancer Metastasis Rev. 17(2)355-61 (1998), which is hereby incoφorated by reference)). [713] Polypeptides, including protein fusions, of the present invention, or fragments thereof may be useful in inhibiting proliferative cells or tissues through the induction of apoptosis. Said polypeptides may act either directly, or indirectly to induce apoptosis of proliferative cells and tissues, for example in the activation of a death-domain receptor, such as tumor necrosis factor (TNF) receptor- 1, CD95 (Fas/APO-1), TNF-receptor-related apoptosis-mediated protein (TRAMP) and TNF-related apoptosis-inducing ligand (TRAIL) receptor- 1 and -2 (See Schulze-Osthoff K, etal., Eur J Biochem 254(3):439-59 (1998), which is hereby incoφorated by reference). Moreover, in another preferred embodiment of the present invention, said polypeptides may induce apoptosis through other mechanisms, such as in the activation of other proteins which will activate apoptosis, or through stimulating the expression of said proteins, either alone or in combination with small molecule drugs or adjuviants, such as apoptonin, galectins, thioredoxins, anti-inflammatory proteins (See for example, Mutat Res 400(1 -2):447-55 (1998), Med Hypotheses.50(5):423-33 (1998), Chem Biol Interact. Apr 24; 111-112:23-34 (1998), J Mol Med.76(6):402-12 (1998), hit J Tissue React;20(l):3-15 (1998), which are all hereby incoφorated by reference). [714] Polypeptides, including protein fusions to, or fragments thereof, of the present invention are useful in inhibiting the metastasis of proliferative cells or tissues. Inhibition may occur as a direct result of administering polypeptides, or antibodies directed to said polypeptides as described elsewere herein, or indirectly, such as activating the expression of proteins known to inhibit metastasis, for example alpha 4 integrins, (See, e.g., Curr Top Microbiol Immunol 1998;231:125-41, which is hereby incoφorated by reference). Such thereapeutic affects of the present invention may be achieved either alone, or in combination with small molecule drags or adjuvants. [715] In another embodiment, the invention provides a method of delivering compositions containing the polypeptides of the invention (e.g., compositions containing polypeptides or polypeptide antibodes associated with heterologous polypeptides, heterologous nucleic acids, toxins, or prodrags) to targeted cells expressing the polypeptide of the present invention. Polypeptides or polypeptide antibodes of the invention may be associated with with heterologous polypeptides, heterologous nucleic acids, toxins, or prodrags via hydrophobic, hydrophilic, ionic and/or covalent interactions. [716] Polypeptides, protein fusions to, or fragments thereof, of the present invention are useful in enhancing the immunogenicity and/or antigenicity of proliferating cells or tissues, either directly, such as would occur if the polypeptides of the present invention 'vaccinated' the immune response to respond to proliferative antigens and imhiunogens, or indirectly, such as in activating the expression of proteins known to enhance the immune response (e.g. chemokines), to said antigens and immunogens. Renal Disorders [717] Polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention, may be used to treat, prevent, diagnose, and/or prognose disorders of the renal system. Renal disorders which can be diagnosed, prognosed, prevented, and/or treated with compositions of the invention include, but are not limited to, kidney failure, nephritis, blood vessel disorders of kidney, metabolic and congenital kidney disorders, urinary disorders of the kidney, autoimmune disorders, sclerosis and necrosis, electrolyte imbalance, and kidney cancers. [718] Kidney diseases which can be diagnosed, prognosed, prevented, and/or treated with compositions of the invention include, but are not limited to, acute kidney failure, chronic kidney failure, atheroembolic renal failure, end-stage renal disease, inflammatory diseases of the kidney (e.g., acute glomerulonephritis, postinfectious glomerulonephritis, rapidly progressive glomerulonephritis, nephrotic syndrome, membranous glomerulonephritis, familial nephrotic syndrome, membranoproliferative glomerulonephritis I and π, mesangial proliferative glomerulonephritis, chronic glomerulonephritis, acute tubulointerstitial nephritis, chronic tubulointerstitial nephritis, acute post-streptococcal glomerulonephritis (PSGN), pyelonephritis, lupus nephritis, chronic nephritis, interstitial nephritis, and post-streptococcal glomerulonephritis), blood vessel disorders of the kidneys (e.g., kidney infarction, atheroembolic kidney disease, cortical necrosis, malignant neplirosclerosis, renal vein thrombosis, renal undeφerfusion, renal retinopathy, renal ischemia-reperfusion, renal artery embolism, and renal artery stenosis), and kidney disorders resulting form urinary tract disease (e.g., pyelonephritis, hydronephrosis, urolithiasis (renal lithiasis, nephrolithiasis), reflux nephropathy, urinary tract infections, urinary retention, and acute or chronic unilateral obstructive uropathy.) [719] In addition, compositions of the invention can be used to diagnose, prognose, prevent, and/or treat metabolic and congenital disorders of the kidney (e.g., uremia, renal amyloidosis, renal osteodystrophy, renal tubular acidosis, renal glycosuria, nephrogenic diabetes insipidus, cystinuria, Fanconi's syndrome, renal fibrocystic osteosis (renal rickets), Hartnup disease, Bartter's syndrome, Liddle's syndrome, polycystic kidney disease, medullary cystic disease, medullary sponge kidney, Alport's syndrome, nail-patella syndrome, congenital nephrotic syndrome, CRUSH syndrome, horseshoe kidney, diabetic nephropathy, nephrogenic diabetes insipidus, analgesic nephropathy, kidney stones, and membranous nephropathy), and autoimmune disorders of the kidney (e.g., systemic lupus erythematosus (SLE), Goodpasture syndrome, IgA nephropathy, and IgM mesangial proliferative glomerulonephritis) . [720] Compositions of the invention can also be used to diagnose, prognose, prevent, and/or treat sclerotic or necrotic disorders of the kidney (e.g., glomerulosclerosis, diabetic nephropathy, focal segmental glomerulosclerosis (FSGS), necrotizing glomerulonephritis, and renal papillary necrosis), cancers of the kidney (e.g., nephroma, hypernephroma, nephroblastoma, renal cell cancer, transitional cell cancer, renal adenocarcinoma, squamous cell cancer, and Wilm's tumor), and electrolyte imbalances (e.g., nephrocalcinosis, pyuria, edema, hydronephritis, proteinuria, hyponatremia, hypernatremia, hypokalemia, hyperkalemia, hypocalcemia, hypercalcemia, hypophosphatemia, and hypeφhosphatemia). [721] Polypeptides may be administered using any method known in the art, including, but not limited to, direct needle injection at the delivery site, intravenous injection, topical administration, catheter infusion, biolistic injectors, particle accelerators, gelfoam sponge depots, other commercially available depot materials, osmotic pumps, oral or suppositorial solid pharmaceutical formulations, decanting or topical applications during surgery, aerosol delivery. Such methods are known in the art. Polypeptides may be administered as part of a Therapeutic, described in more detail below. Methods of delivering polynucleotides are described in more detail herein. Cardiovascular Disorders [722] Polynucleotides or polypeptides, or agonists or antagonists of the present invention, may be used to treat, prevent, diagnose, and/or prognose cardiovascular disorders, including, but not limited to, peripheral artery disease, such as limb ischemia. [723] Cardiovascular disorders include, but are not limited to, cardiovascular abnormalities, such as arterio-arterial fistula, arteriovenous fistula, cerebral arteriovenous malformations, congenital heart defects, pulmonary atresia, and Scimitar Syndrome. Congenital heart defects include, but are not limited to, aortic coarctation, cor triatriatum, coronary vessel anomalies, crisscross heart, dextrocardia, patent ductus arteriosus, Ebstein's anomaly, Eisenmenger complex, hypoplastic left heart syndrome, levocardia, tetralogy of fallot, transposition of great vessels, double outlet right ventricle, tricuspid atresia, persistent truncus arteriosus, and heart septal defects, such as aortopulmonary septal defect, endocardial cushion defects, Lutembacher's Syndrome, trilogy of Fallot, ventricular heart septal defects. [724] Cardiovascular disorders also include, but are not limited to, heart disease, such as arrhythmias, carcinoid heart disease, high cardiac output, low cardiac output, cardiac tamponade, endocarditis (including bacterial), heart aneurysm, cardiac arrest, congestive heart failure, congestive cardiomyopathy, paroxysmal dyspnea, cardiac edema, heart hypertrophy, congestive cardiomyopathy, left ventricular hypertrophy, right ventricular hypertrophy, post-infarction heart rapture, ventricular septal rupture, heart valve diseases, myocardial diseases, myocardial ischemia, pericardial effusion, pericarditis (including constrictive and tuberculous), pneumopericardium, postpericardiotomy syndrome, pulmonary heart disease, rheumatic heart disease, ventricular dysfunction, hyperemia, cardiovascular pregnancy complications, Scimitar Syndrome, cardiovascular syphilis, and cardiovascular tuberculosis. [725] Arrhythmias include, but are not limited to, sinus arrhythmia, atrial fibrillation, atrial flutter, bradycardia, extrasystole, Adams-Stokes Syndrome, bundle-branch block, sinoafrial block, long QT syndrome, parasystole, Lown-Ganong-Levine Syndrome, Mahaim- type pre-excitation syndrome, Wolff-Parkinson-White syndrome, sick sinus syndrome, tachycardias, and ventricular fibrillation. Tachycardias include paroxysmal tachycardia, supraventricular tachycardia, accelerated idioventricular rhythm, atrioventricular nodal reentry tachycardia, ectopic atrial tachycardia, ectopic junctional tachycardia, sinoatrial nodal reentry tachycardia, sinus tachycardia, Torsades de Pointes, and ventricular tachycardia. [726] Heart valve diseases include, but are not limited to, aortic valve insufficiency, aortic valve stenosis, hear murmurs, aortic valve prolapse, mitral valve prolapse, tricuspid valve prolapse, mitral valve insufficiency, mitral valve stenosis, pulmonary atresia, pulmonary valve insufficiency, pulmonary valve stenosis, tricuspid atresia, tricuspid valve insufficiency, and tricuspid valve stenosis. [727] Myocardial diseases include, but are not limited to, alcoholic cardiomyopathy, congestive cardiomyopathy, hypertrophic cardiomyopathy, aortic subvalvular stenosis, pulmonary subvalvular stenosis, restrictive cardiomyopathy, Chagas cardiomyopathy, endocardial fibroelastosis, endomyocardial fibrosis, Kearns Syndrome, myocardial reperfusion injury, and myocarditis. [728] Myocardial ischemias include, but are not limited to, coronary disease, such as angina pectoris, coronary aneurysm, coronary arteriosclerosis, coronary thrombosis, coronary vasospasm, myocardial infarction and myocardial stunning. [729] Cardiovascular diseases also include vascular diseases such as aneurysms, angiodysplasia, angiomatosis, bacillary angiomatosis, Hippel-Lindau Disease, Klippel- Trenaunay-Weber Syndrome, Sturge- Weber Syndrome, angioneurotic edema, aortic diseases, Takayasu's Arteritis, aortitis, Leriche's Syndrome, arterial occlusive diseases, arteritis, enarteritis, polyarteritis nodosa, cerebrovascular disorders, diabetic angiopathies, diabetic retinopathy, embolisms, thrombosis, erythromelalgia, hemorrhoids, hepatic veno-occlusive disease, hypertension, hypotension, ischemia, peripheral vascular diseases, phlebitis, pulmonary veno-occlusive disease, Raynaud's disease, CREST syndrome, retinal vein occlusion, Scimitar syndrome, superior vena cava syndrome, telangiectasia, atacia telangiectasia, hereditary hemorrhagic telangiectasia, varicocele, varicose veins, varicose ulcer, vasculitis, and venous insufficiency. [730] Aneurysms include, but are not limited to, dissecting aneurysms, false aneurysms, infected aneurysms, ruptured aneurysms, aortic aneurysms, cerebral aneurysms, coronary aneurysms, heart aneurysms, and iliac aneurysms. [731] Arterial occlusive diseases include, but are not limited to, arteriosclerosis, intermittent claudication, carotid stenosis, fibromuscular dysplasias, mesenteric vascular occlusion, Moyamoya disease, renal artery obstruction, retinal artery occlusion, and thromboangiitis obliterans. [732] Cerebrovascular disorders include, but are not limited to, carotid artery diseases, cerebral amyloid angiopathy, cerebral aneurysm, cerebral anoxia, cerebral arteriosclerosis, cerebral arteriovenous malfoπnation, cerebral artery diseases, cerebral embolism and thrombosis, carotid artery thrombosis, sinus thrombosis, Wallenberg's syndrome, cerebral hemorrhage, epidural hematoma, subdural hematoma, subaraxhnoid hemorrhage, cerebral infarction, cerebral ischemia (including transient), subclavian steal syndrome, periventricular leukomalacia, vascular headache, cluster headache, migraine, and vertebrobasilar insufficiency. [733] Embolisms include, but are not limited to, air embolisms, amniotic fluid embolisms, cholesterol embolisms, blue toe syndrome, fat embolisms, pulmonary embolisms, and thromoboembolisms. Thrombosis include, but are not limited to, coronary thrombosis, hepatic vein thrombosis, retinal vein occlusion, carotid artery thrombosis, sinus thrombosis, Wallenberg's syndrome, and thrombophlebitis. [734] Ischemic disorders include, but are not limited to, cerebral ischemia, ischemic colitis, compartment syndromes, anterior compartment syndrome, myocardial ischemia, reperfusion injuries, and peripheral limb ischemia. Vasculitis includes, but is not limited to, aortitis, arteritis, Behcet's Syndrome, Churg-Strauss Syndrome, mucocutaneous lymph node syndrome, thromboangiitis obliterans, hypersensitivity vasculitis, Schoenlein-Henoch puφura, allergic cutaneous vasculitis, and Wegener's granulomatosis. [735] Polypeptides may be administered using any method known in the art, including, but not limited to, direct needle injection at the delivery site, intravenous injection, topical administration, catheter infusion, biolistic injectors, particle accelerators, gelfoam sponge depots, other commercially available depot materials, osmotic pumps, oral or suppositorial solid pharmaceutical formulations, decanting or topical applications during surgery, aerosol delivery. Such methods are known in the art. Polypeptides may be administered as part of a Therapeutic, described in more detail below. Methods of delivering polynucleotides are described in more detail herein. Respiratory Disorders [736] Polynucleotides or polypeptides, or agonists or antagonists ofthe present invention may be used to treat, prevent, diagnose, and/or prognose diseases and/or disorders of the respiratory system. [737] Diseases and disorders of the respiratory system include, but are not limited to, nasal vestibulitis, nonallergic rhinitis (e.g., acute rhinitis, chronic rhinitis, atrophic rhinitis, vasomotor rhinitis), nasal polyps, and sinusitis, juvenile angiofibromas, cancer of the nose and juvenile papillomas, vocal cord polyps, nodules (singer's nodules), contact ulcers, vocal cord paralysis, laryngoceles, pharyngitis (e.g., viral and bacterial), tonsillitis, tonsillar cellulitis, parapharyngeal abscess, laryngitis, laryngoceles, and throat cancers (e.g., cancer of the nasopharynx, tonsil cancer, larynx cancer), lung cancer (e.g., squamous cell carcinoma, small cell (oat cell) carcinoma, large cell carcinoma, and adenocarcinoma), allergic disorders (eosinophilic pneumonia, hypersensitivity pneumonitis (e.g., extrinsic allergic alveolitis, allergic interstitial pneumonitis, organic dust pneumoconiosis, allergic bronchopulmonary aspergillosis, asthma, Wegener's granulomatosis (granulomatous vasculitis), Goodpasture's syndrome)), pneumonia (e.g., bacterial pneumonia (e.g., Streptococcus pneumoniae (pneumoncoccal pneumonia), Staphylococcus aureus (staphylococcal pneumonia), Gram- negative bacterial pneumonia (caused by, e.g., Klebsiella and Pseudomas spp.), Mycoplasma pneumoniae pneumonia, Hemophilus influenzae pneumonia, Legionella pneumophila (Legionnaires' disease), and Chlamydia psittaci (Psittacosis)), and viral pneumonia (e.g., influenza, chickenpox (varicella). [738] Additional diseases and disorders of the respiratory system include, but are not limited to bronchiolitis, polio (poliomyelitis), croup, respiratory syncytial viral infection, mumps, erythema infectiosum (fifth disease), roseola infantum, progressive rubella panencephalitis, german measles, and subacute sclerosing panencephalitis), fungal pneumonia (e.g., Histoplasmosis, Coccidioidomycosis, Blastomycosis, fungal infections in people with severely suppressed immune systems (e.g., cryptococcosis, caused by Cryptococcus neoformans; aspergillosis, caused by Aspergillus spp. ; candidiasis, caused by Candida; and mucormycosis)), Pneumocystis carinii (pneumocystis pneumonia), atypical pneumonias (e.g., Mycoplasma and Chlamydia spp.), opportunistic infection pneumonia, nosocomial pneumonia, chemical pneumonitis, and aspiration pneumonia, pleural disorders (e.g., pleurisy, pleural effusion, and pneumothorax (e.g., simple spontaneous pneumothorax, complicated spontaneous pneumothorax, tension pneumothorax)), obstructive airway diseases (e.g., asthma, chronic obstructive pulmonary disease (COPD), emphysema, chronic or acute bronchitis), occupational lung diseases (e.g., silicosis, black lung (coal workers' pneumoconiosis), asbestosis, berylliosis, occupational asthsma, byssinosis, and benign pneumoconioses), Infiltrative Lung Disease (e.g., pulmonary fibrosis (e.g., fibrosing alveolitis, usual interstitial pneumonia), idiopathic pulmonary fibrosis, desquamative interstitial pneumonia, lymphoid interstitial pneumonia, histiocytosis X (e.g., Letterer-Siwe disease, Hand-Schϋller-Christian disease, eosinophilic granuloma), idiopathic pulmonary hemosiderosis, sarcoidosis and pulmonary alveolar proteinosis), Acute respiratory distress syndrome (also called, e.g., adult respiratory Mistress syndrome), edema, pulmonary embolism, bronchitis (e.g., viral, bacterial), bronchiectasis, atelectasis, lung abscess (caused by, e.g., Staphylococcus aureus ox Legionella pneumophila), and cystic fibrosis. Anti-Angiogenesis Activity [739] The naturally occurring balance between endogenous stimulators and inhibitors of angiogenesis is one in which inhibitory influences predominate. Rastinejad et al, Cell 56:345-355 (1989). In those rare instances in which neovascularization occurs under normal physiological conditions, such as wound healing, organ regeneration, embryonic development, and female reproductive processes, angiogenesis is stringently regulated and spatially and temporally delimited. Under conditions of pathological angiogenesis such as that characterizing solid tumor growth, these regulatory controls fail. Unregulated angiogenesis becomes pathologic and sustains progression of many neoplastic and non- neoplastic diseases. A number of serious diseases are dominated by abnormal neovascularization including solid tumor growth and metastases, arthritis, some types of eye disorders, and psoriasis. See, e.g., reviews by Moses et al, Biotech. .9:630-634 (1991); Folkman et al, N. Engl J. Med, 333:1151-1163 (1995); Auerbach et al, J. Microvasc. Res. 29:401-411 (1985); Folkman, Advances in Cancer Research, eds. Klein and Weinhouse, Academic Press, New York, pp. 175-203 (1985); Patz, Am. J. Opthalmol 94:115-143 (1982); and Folkman et al, Science 221:119-125 (1983). hi a number of pathological conditions, the process of angiogenesis contributes to the disease state. For example, significant data have accumulated which suggest that the growth of solid tumors is dependent on angiogenesis. Folkman and Klagsbrun, Science 235:442-441 (1987). [740] The present invention provides for treatment of diseases or disorders associated with neovascularization by administration of the polynucleotides and/or polypeptides of the invention, as well as agonists or antagonists of the present invention. Malignant and metastatic conditions which can be treated with the polynucleotides and polypeptides, or agonists or antagonists of the invention include, but are not limited to, malignancies, solid tumors, and cancers described herein and otherwise known in the art (for a review of such disorders, see Fishman et al, Medicine, 2d Ed., J. B. Lippincott Co., Philadelphia (1985)).Thus, the present invention provides a method of treating an angiogenesis-related disease and/or disorder, comprising administering to an individual in need thereof a therapeutically effective amount of a polynucleotide, polypeptide, antagonist and/or agonist of the invention. For example, polynucleotides, polypeptides, antagonists and/or agonists may be utilized in a variety of additional methods in order to therapeutically treat a cancer or tumor. Cancers which may be treated with polynucleotides, polypeptides, antagonists and/or agonists include, but are not limited to solid tumors, including prostate, lung, breast, ovarian, stomach, pancreas, larynx, esophagus, testes, liver, parotid, biliary tract, colon, rectum, cervix, uterus, endometrium, kidney, bladder, thyroid cancer; primary tumors and metastases; melanomas; glioblastoma; Kaposi's sarcoma; leiomyosarcoma; non- small cell lung cancer; colorectal cancer; advanced malignancies; and blood born tumors such as leukemias. For example, polynucleotides, polypeptides, antagonists and/or agonists may be delivered topically, in order to treat cancers such as skin cancer, head and neck tumors, breast tumors, and Kaposi's sarcoma. [741] Within yet other aspects, polynucleotides, polypeptides, antagonists and/or agonists may be utilized to treat superficial forms of bladder cancer by, for example, infravesical administration. Polynucleotides, polypeptides, antagonists and/or agonists may be delivered directly into the tumor, or near the tumor site, via injection or a catheter. Of course, as the artisan of ordinary skill will appreciate, the appropriate mode of administration will vary according to the cancer to be treated. Other modes of delivery are discussed herein. [742] Polynucleotides, polypeptides, antagonists and/or agonists may be useful in treating other disorders, besides cancers, which involve angiogenesis. These disorders include, but are not limited to: benign tumors, for example hemangiomas, acoustic neuromas, neurofibromas, trachomas, and pyogenic granulomas; artheroscleric plaques; ocular angiogenic diseases, for example, diabetic retinopathy, retinopathy of prematurity, macular degeneration, corneal graft rejection, neovascular glaucoma, refrolental fibroplasia, rabeosis, retinoblastoma, uvietis and Pterygia (abnormal blood vessel growth) of the eye; rheumatoid arthritis; psoriasis; delayed wound healing; endometriosis; vasculogenesis; granulations; hypertrophic scars (keloids); nonunion fractures; scleroderma; trachoma; vascular adhesions; myocardial angiogenesis; coronary collaterals; cerebral collaterals; arteriovenous malformations; ischemic limb angiogenesis; Osier-Webber Syndrome; plaque neovascularization; telangiectasia; hemophiliac joints; angiofibroma; fibromuscular dysplasia; wound granulation; Crohn's disease; and atherosclerosis. [743] For example, within one aspect of the present invention methods are provided for treating hypertrophic scars and keloids, comprising the step of administering a polynucleotide, polypeptide, antagonist and/or agonist ofthe invention to a hypertrophic scar or keloid. [744] Within one embodiment of the present invention polynucleotides, polypeptides, antagonists and/or agonists of the invention are directly injected into a hypertrophic scar or keloid, in order to prevent the progression of these lesions. This therapy is of particular value in the prophylactic freatment of conditions which are known to result in the development of hypertrophic scars and keloids (e.g., burns), and is preferably initiated after the proliferative phase has had time to progress (approximately 14 days after the initial injury), but before hypertrophic scar or keloid development. As noted above, the present invention also provides methods for treating neovascular diseases ofthe eye, including for example, corneal neovascularization, neovascular glaucoma, proliferative diabetic retinopathy, refrolental fibroplasia and macular degeneration. [745] Moreover, Ocular disorders associated with neovascularization which can be treated with the polynucleotides and polypeptides ofthe present invention (including agonists and/or antagonists) include, but are not limited to: neovascular glaucoma, diabetic retinopathy, retinoblastoma, refrolental fibroplasia, uveitis, retinopathy of prematurity macular degeneration, comeal graft neovascularization, as well as other eye inflammatory diseases, ocular tumors and diseases associated with choroidal or iris neovascularization. See, e.g., reviews by Waltman et al, Am. J. Ophthal 85:104-110 (1978) and Gartner et al, Surv. Ophthal 22:291-312 (1978). [746] Thus, within one aspect of the present invention methods are provided for treating neovascular diseases of the eye such as corneal neovascularization (including comeal graft neovascularization), comprising the step of administering to a patient a therapeutically effective amount of a compound (as described above) to the cornea, such that the formation of blood vessels is inhibited. Briefly, the cornea is a tissue which normally lacks blood vessels. In certain pathological conditions however, capillaries may extend into the cornea from the pericorneal vascular plexus of the limbus. When the cornea becomes vascularized, it also becomes clouded, resulting in a decline in the patient's visual acuity. Visual loss may become complete if the cornea completely opacitates. A wide variety of disorders can result in corneal neovascularization, including for example, corneal infections (e.g., trachoma, heφes simplex keratitis, leishmaniasis and onchocerciasis), immunological processes (e.g., graft rejection and Stevens- Johnson's syndrome), alkali burns, trauma, inflammation (of any cause), toxic and nutritional deficiency states, and as a complication of wearing contact lenses. [747] Within particularly preferred embodiments of the invention, may be prepared for topical administration in saline (combined with any of the preservatives and antimicrobial agents commonly used in ocular preparations), and administered in eyedrop form. The solution or suspension may be prepared in its pure form and administered several times daily. Alternatively, anti-angiogenic compositions, prepared as described above, may also be administered directly to the cornea. Within preferred embodiments, the anti-angiogenic composition is prepared with a muco-adhesive polymer which binds to cornea. Within further embodiments, the anti-angiogenic factors or anti-angiogenic compositions may be utilized as an adjunct to conventional steroid therapy. Topical therapy may also be useful prophylactically in comeal lesions which are known to have a high probability of inducing an angiogenic response (such as chemical burns), h these instances the treatment, likely in combination with steroids, may be instituted immediately to help prevent subsequent complications. [748] Within other embodiments, the compounds described above may be injected directly into the corneal stroma by an ophthalmologist under microscopic guidance. The preferred site of injection may vary with the moφhology ofthe individual lesion, but the goal of the administration would be to place the composition at the advancing front of the vasculature (i.e., interspersed between the blood vessels and the normal cornea), hi most cases this would involve perilimbic comeal injection to "protect" the cornea from the advancing blood vessels. This method may also be utilized shortly after a comeal insult in order to prophylactically prevent comeal neovascularization. hi this situation the material could be injected in the perilimbic cornea interspersed between the corneal lesion and its undesired potential limbic blood supply. Such methods may also be utilized in a similar fashion to prevent capillary invasion of transplanted corneas, h a sustained-release form injections might only be required 2-3 times per year. A steroid could also be added to the injection solution to reduce inflammation resulting from the injection itself. [749] Within another aspect of the present invention, methods are provided for freating neovascular glaucoma, comprising the step of administering to a patient a therapeutically effective amount of a polynucleotide, polypeptide, antagonist and/or agonist to the eye, such that the formation of blood vessels is inhibited, hi one embodiment, the compound may be administered topically to the eye in order to treat early forms of neovascular glaucoma. Within other embodiments, the compound may be implanted by injection into the region of the anterior chamber angle. Within other embodiments, the compound may also be placed in any location such that the compound is continuously released into the aqueous humor. Within another aspect of the present invention, methods are provided for treating proliferative diabetic retinopathy, comprising the step of administering to a patient a therapeutically effective amount of a polynucleotide, polypeptide, antagonist and/or agonist to the eyes, such that the formation of blood vessels is inhibited. [750] Within particularly preferred embodiments of the invention, proliferative diabetic retinopathy may be treated by injection into the aqueous humor or the vitreous, in order to increase the local concentration of the polynucleotide, polypeptide, antagonist and/or agonist in the retina. Preferably, this treatment should be initiated prior to the acquisition of severe disease requiring photocoagulation. [751] Within another aspect of the present invention, methods are provided for treating refrolental fibroplasia, comprising the step of administering to a patient a therapeutically effective amount of a polynucleotide, polypeptide, antagonist and/or agonist to the eye, such that the formation of blood vessels is inhibited. The compound may be administered topically, via intravitreous injection and/or via intraocular implants. [752] Additionally, disorders which can be treated with the polynucleotides, polypeptides, agonists and/or agonists include, but are not limited to, hemangioma, arthritis, psoriasis, angiofibroma, atherosclerotic plaques, delayed wound healing, granulations, hemophilic joints, hypertrophic scars, nonunion fractures, Osier- Weber syndrome, pyogenic granuloma, scleroderma, trachoma, and vascular adhesions. [753] Moreover, disorders and/or states, which can be treated, prevented, diagnosed, and/or prognosed with the the polynucleotides, polypeptides, agonists and/or agonists of the invention include, but are not limited to, solid tumors, blood born tumors such as leukemias, tumor metastasis, Kaposi's sarcoma, benign tumors, for example hemangiomas, acoustic neuromas, neurofibromas, trachomas, and pyogenic granulomas, rheumatoid arthritis, psoriasis, ocular angiogenic diseases, for example, diabetic retinopathy, retinopathy of prematurity, macular degeneration, corneal graft rejection, neovascular glaucoma, refrolental fibroplasia, rabeosis, retinoblastoma, and uvietis, delayed wound healing, endometriosis, vascluogenesis, granulations, hypertrophic scars (keloids), nonunion fractures, scleroderma, trachoma, vascular adhesions, myocardial angiogenesis, coronary collaterals, cerebral collaterals, arteriovenous malformations, ischemic limb angiogenesis, Osier-Webber Syndrome, plaque neovascularization, telangiectasia, hemophiliac joints, angiofibroma fibromuscular dysplasia, wound granulation, Crohn's disease, atherosclerosis, birth control agent by preventing vascularization required for embryo implantation controlling menstruation, diseases that have angiogenesis as a pathologic consequence such as cat scratch disease (Rochele minalia quintosa), ulcers (Helicobacter pylori), Bartonellosis and bacillary angiomatosis. [754] In one aspect ofthe birth control method, an amount ofthe compound sufficient to block embryo implantation is administered before or after intercourse and fertilization have occurred, thus providing an effective method of birth control, possibly a "morning after" method. Polynucleotides, polypeptides, agonists and/or agonists may also be used in controlling menstruation or administered as either a peritoneal lavage fluid or for peritoneal implantation in the treatment of endometriosis. [755] Polynucleotides, polypeptides, agonists and/or agonists of the present invention may be incoφorated into surgical sutures in order to prevent stitch granulomas. [756] Polynucleotides, polypeptides, agonists and/or agonists may be utilized in a wide variety of surgical procedures. For example, within one aspect of the present invention a compositions (in the form of, for example, a spray or film) may be utilized to coat or spray an area prior to removal of a tumor, in order to isolate normal surrounding tissues from malignant tissue, and/or to prevent the spread of disease to surrounding tissues. Within other aspects of the present invention, compositions (e.g., in the form of a spray) may be delivered via endoscopic procedures in order to coat tumors, or inhibit angiogenesis in a desired locale. Within yet other aspects of the present invention, surgical meshes which have been coated with anti- angiogenic compositions of the present invention may be utilized in any procedure wherein a surgical mesh might be utilized. For example, within one embodiment of the invention a surgical mesh laden with an anti-angiogenic composition may be utilized during abdominal cancer resection surgery (e.g., subsequent to colon resection) in order to provide support to the structure, and to release an amount ofthe anti-angiogenic factor. [757] Within further aspects of the present invention, methods are provided for treating tumor excision sites, comprising administering a polynucleotide, polypeptide, agonist and/or agonist to the resection margins of a tumor subsequent to excision, such that the local recurrence of cancer and the fonnation of new blood vessels at the site is inhibited. Within one embodiment of the invention, the anti-angiogenic compound is administered directly to the tumor excision site (e.g., applied by swabbing, brushing or otherwise coating the resection margins of the tumor with the anti-angiogenic compound). Alternatively, the anti- angiogenic compounds may be incoφorated into known surgical pastes prior to administration. Within particularly preferred embodiments of the invention, the anti- angiogenic compounds are applied after hepatic resections for malignancy, and after neurosurgical operations. [758] Within one aspect ofthe present invention, polynucleotides, polypeptides, agonists and/or agonists may be administered to the resection margin of a wide variety of tumors, including for example, breast, colon, brain and hepatic tumors. For example, within one embodiment ofthe invention, anti-angiogenic compounds may be admimstered to the site of a neurological tumor subsequent to excision, such that the formation of new blood vessels at the site are inhibited. [759] The polynucleotides, polypeptides, agonists and/or agonists of the present invention may also be administered along with other anti-angiogenic factors. Representative examples of other anti-angiogenic factors include: Anti-Invasive Factor, retinoic acid and derivatives thereof, paclitaxel, Suramin, Tissue Inhibitor of Metalloproteinase-1, Tissue Inhibitor of Metalloproteinase-2, Plasminogen Activator Inhibitor- 1, Plasminogen Activator Inhibitor-2, and various forms ofthe lighter "d group" transition metals. [760] Lighter "d group" transition metals include, for example, vanadium, molybdenum, tungsten, titanium, niobium, and tantalum species. Such transition metal species may form transition metal complexes. Suitable complexes of the above-mentioned transition metal species include oxo transition metal complexes. [761] Representative examples of vanadium complexes include oxo vanadium complexes such as vanadate and vanadyl complexes. Suitable vanadate complexes include metavanadate and orthovanadate complexes such as, for example, ammonium metavanadate, sodium metavanadate, and sodium orthovanadate. Suitable vanadyl complexes include, for example, vanadyl acetylacetonate and vanadyl sulfate including vanadyl sulfate hydrates such as vanadyl sulfate mono- and trihydrates. [762] Representative examples of tungsten and molybdenum complexes also include oxo complexes. Suitable oxo tungsten complexes include tungstate and tungsten oxide complexes. Suitable tungstate complexes include ammonium tungstate, calcium tungstate, sodium tungstate dihydrate, and tungstic acid. Suitable tungsten oxides include tungsten (IN) oxide and tungsten (VI) oxide. Suitable oxo molybdenum complexes include molybdate, molybdenum oxide, and molybdenyl complexes. Suitable molybdate complexes include ammonium molybdate and its hydrates, sodium molybdate and its hydrates, and potassium molybdate and its hydrates. Suitable molybdenum oxides include molybdenum (NT) oxide, molybdenum (VI) oxide, and molybdic acid. Suitable molybdenyl complexes include, for example, molybdenyl acetylacetonate. Other suitable tungsten and molybdenum complexes include hydroxo derivatives derived from, for example, glycerol, tartaric acid, and sugars. [763] A wide variety of other anti-angiogenic factors may also be utilized within the context of the present invention. Representative examples include platelet factor 4; protamine sulphate; sulphated chitin derivatives (prepared from queen crab shells), (Murata et al., Cancer Res. 51:22-26, 1991); Sulphated Polysaccharide Peptidoglycan Complex (SP- PG) (the function of this compound may be enhanced by the presence of steroids such as estrogen, and tamoxifen citrate); Staurosporine; modulators of matrix metabolism, including for example, proline analogs, cishydroxyproline, d,L-3,4-dehydroproline, Thiaproline, alpha,alpha-dipyridyl, aminopropionitrile fumarate; 4-propyl-5-(4-pyridinyl)-2(3H)- oxazolone; Methotrexate; Mitoxantrone; Heparin; Interferons; 2 Macroglobulin-serum; ChIMP-3 (Pavloff et al., J. Bio. Chem. 26737321-17326, 1992); Chymostatin (Tomkinson et al., Biochem J. 286:475-480, 1992); Cyclodextrin Tetradecasulfate; Eponemycin; Camptothecin; Fumagillin (higher et al., Nature 348:555-557, 1990); Gold Sodium Thiomalate ("GST"; Matsubara and Ziff, J. Clin. Invest. 793440-1446, 1987); anticollagenase-serum; alpha2-antiplasmin (Holmes et al., J. Biol. Chem. 262(4)3659-1664, 1987); Bisanfrene (National Cancer Institute); Lobenzarit disodium (N-(2)-carboxyphenyl-4- chloroanthronilic acid disodium or "CCA"; Takeuchi et al., Agents Actions 36:312-316, 1992); Thalidomide; Angostatic steroid; AGM-1470; carboxynaminolmidazole; and metalloproteinase inhibitors such as BB94. Diseases at the Cellular Level [764] Diseases associated with increased cell survival or the inhibition of apoptosis that could be treated, prevented, diagnosed, and/or prognosed using polynucleotides or polypeptides, as well as antagonists or agonists of the present invention, include cancers (such as follicular lymphomas, carcinomas with p53 mutations, and hormone-dependent tumors, including, but not limited to colon cancer, cardiac tumors, pancreatic cancer, melanoma, retinoblastoma, glioblastoma, lung cancer, intestinal cancer, testicular cancer, stomach cancer, neuroblastoma, myxoma, myoma, lymphoma, endothelioma, osteoblastoma, osteoclastoma, osteosarcoma, chondrosarcoma, adenoma, breast cancer, prostate cancer, Kaposi's sarcoma and ovarian cancer); autoimmune disorders (such as, multiple sclerosis, Sjogren's syndrome, Hashimoto's thyroiditis, biliary cirrhosis, Behcet's disease, Crohn's disease, polymyositis, systemic lupus erythematosus and immune-related glomerulonephritis and rheumatoid arthritis) and viral infections (such as heφes viruses, pox viruses and adenoviruses), inflammation, graft v. host disease, acute graft rejection, and chronic graft rejection. [765] In preferred embodiments, polynucleotides, polypeptides, and/or antagonists ofthe invention are used to inhibit growth, progression, and/or metasis of cancers, in particular those listed above. [766] Additional diseases or conditions associated with increased cell survival that could be treated or detected by polynucleotides or polypeptides, or agonists or antagonists of the present invention include, but are not limited to, progression, and/or metastases of malignancies and related disorders such as leukemia (including acute leukemias (e.g., acute lymphocytic leukemia, acute myelocytic leukemia (including myeloblastic, promyelocytic, myelomonocytic, monocytic, and erythroleukemia)) and chronic leukemias (e.g., chronic myelocytic (granulocytic) leukemia and chronic lymphocytic leukemia)), polycythemia vera, lymphomas (e.g., Hodgkin's disease and non-Hodgkin's disease), multiple myeloma, Waldenstrom's macroglobulinemia, heavy chain disease, and solid tumors including, but not limited to, sarcomas and carcinomas such as fibrosarcoma, myxosarcoma, liposarcoma, chondrosarcoma, osteogenic sarcoma, chordoma, angiosarcoma, endotheliosarcoma, lymphangiosarcoma, lymphangioendotheliosarcoma, synovioma, mesothehoma, Ewing's tumor, leiomyosarcoma, rhabdomyosarcoma, colon carcinoma, pancreatic cancer, breast cancer, ovarian cancer, prostate cancer, squamous cell carcinoma, basal cell carcinoma, adenocarcinoma, sweat gland carcinoma, sebaceous gland carcinoma, papillary carcinoma, papillary adenocarcinomas, cystadenocarcinoma, medullary carcinoma, bronchogenic carcinoma, renal cell carcinoma, hepatoma, bile duct carcinoma, choriocarcinoma, seminoma, embryonal carcinoma, Wilm's tumor, cervical cancer, testicular tumor, lung carcinoma, small cell lung carcinoma, bladder carcinoma, epithelial carcinoma, glioma, astrocytoma, medulloblastoma, craniopharyngioma, ependymoma, pinealoma, hemangioblastoma, acoustic neuroma, oligodendroglioma, menangioma, melanoma, neuroblastoma, and retinoblastoma. [767] Diseases associated with increased apoptosis that could be treated, prevented, diagnosed, and/or prognesed using polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, include, but are not limited to, ADDS; neurodegenerative disorders (such as Alzheimer's disease, Parkinson's disease, Amyotrophic lateral sclerosis, Retinitis pigmentosa, Cerebellar degeneration and brain tumor or prior associated disease); autoimmune disorders (such as, multiple sclerosis, Sjogren's syndrome, Hashimoto's thyroiditis, biliary cirrhosis, Behcet's disease, Crohn's disease, polymyositis, systemic lupus erythematosus and immune-related glomerulonephritis and rheumatoid arthritis) myelodysplastic syndromes (such as aplastic anemia), graft v. host disease, ischemic injury (such as that caused by myocardial infarction, stroke and reperfusion injury), liver injury (e.g., hepatitis related liver injury, ischemia/reperfusion injury, cholestosis (bile duct injury) and liver cancer); toxin-induced liver disease (such as that caused by alcohol), septic shock, cachexia and anorexia. Wound Healing and Epithelial Cell Proliferation [768] In accordance with yet a further aspect ofthe present invention, there is provided a process for utilizing polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, for therapeutic puφoses, for example, to stimulate epithelial cell proliferation and basal keratinocytes for the puφose of wound healing, and to stimulate hair follicle production and healing of dermal wounds. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, may be clinically useful in stimulating wound healing including surgical wounds, excisional wounds, deep wounds involving damage of the dermis and epidermis, eye tissue wounds, dental tissue wounds, oral cavity wounds, diabetic ulcers, dermal ulcers, cubitus ulcers, arterial ulcers, venous stasis ulcers, bums resulting from heat exposure or chemicals, and other abnormal wound healing conditions such as uremia, malnutrition, vitamin deficiencies and complications associated with systemic treatment with steroids, radiation therapy and antineoplastic drugs and antimetabolites. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used to promote dermal reestablishment subsequent to dermal loss [769] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used to increase the adherence of skin grafts to a wound bed and to stimulate re-epithelialization from the wound bed. The following are types of grafts that polynucleotides or polypeptides, agonists or antagonists of the present invention, could be used to increase adherence to a wound bed: autografts, artificial skin, allografts, autodermic graft, autoepdermic grafts, avacular grafts, Blair-Brown grafts, bone graft, brephoplastic grafts, cutis graft, delayed graft, dermic graft, epidermic graft, fascia graft, full thickness graft, heterologous graft, xenograft, homologous graft, hypeφlastic graft, lamellar graft, mesh graft, mucosal graft, Ollier-Thiersch graft, omenpal graft, patch graft, pedicle graft, penetrating graft, split skin graft, thick split graft. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, can be used to promote skin strength and to improve the appearance of aged skin. [770] It is believed that polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, will also produce changes in hepatocyte proliferation, and epithelial cell proliferation in the lung, breast, pancreas, stomach, small intestine, and large intestine. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could promote proliferation of epithelial cells such as sebocytes, hair follicles, hepatocytes, type II pneumocytes, mucin-producing goblet cells, and other epithelial cells and their progenitors contained within the skin, lung, liver, and gastrointestinal tract. Polynucleotides or polypeptides, agonists or antagonists of the present invention, may promote proliferation of endothelial cells, keratinocytes, and basal keratinocytes. [771] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could also be used to reduce the side effects of gut toxicity that result from radiation, chemotherapy treatments or viral infections. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, may have a cytoprotective effect on the small intestine mucosa. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, may also stimulate healing of mucositis (mouth ulcers) that result from chemotherapy and viral infections. [772] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could further be used in full regeneration of skin in full and partial thickness skin defects, including bums, (i.e., repopulation of hair follicles, sweat glands, and sebaceous glands), freatment of other skin defects such as psoriasis. Polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, could be used to treat epidermolysis bullosa, a defect in adherence of the epidermis to the underlying dermis which results in frequent, open and painful blisters by accelerating reepithelialization of these lesions. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could also be used to treat gastric and doudenal ulcers and help heal by scar formation of the mucosal lining and regeneration of glandular mucosa and duodenal mucosal lining more rapidly. Inflammatory bowel diseases, such as Crohn's disease and ulcerative colitis, are diseases which result in destruction of the mucosal surface of the small or large intestine, respectively. Thus, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used to promote the resurfacing of the mucosal surface to aid more rapid healing and to prevent progression of inflammatory bowel disease. Treatment with polynucleotides or polypeptides, agonists or antagonists of the present invention, is expected to have a significant effect on the production of mucus throughout the gastrointestinal tract and could be used to protect the intestinal mucosa from injurious substances that are ingested or following surgery. Polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, could be used to treat diseases associate with the under expression. [773] Moreover, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used to prevent and heal damage to the lungs due to various pathological states. Polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, which could stimulate proliferation and differentiation and promote the repair of alveoli and brochiolar epithelium to prevent or treat acute or chronic lung damage. For example, emphysema, which results in the progressive loss of aveoli, and inhalation injuries, i.e., resulting from smoke inhalation and bums, that cause necrosis ofthe bronchiolar epithelium and alveoli could be effectively treated using polynucleotides or polypeptides, agonists or antagonists of the present invention. Also, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used to stimulate the proliferation of and differentiation of type Et pneumocytes, which may help treat or prevent disease such as hyaline membrane diseases, such as infant respiratory distress syndrome and bronchopulmonary displasia, in premature infants. [774] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could stimulate the proliferation and differentiation of hepatocytes and, thus, could be used to alleviate or treat liver diseases and pathologies such as fulminant liver failure caused by cirrhosis, liver damage caused by viral hepatitis and toxic substances (i.e., acetaminophen, carbon tefraholoride and other hepatotoxins known in the art). [775] hi addition, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used treat or prevent the onset of diabetes mellitus. In patients with newly diagnosed Types I and Et diabetes, where some islet cell function remains, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, could be used to maintain the islet function so as to alleviate, delay or prevent permanent manifestation of the disease. Also, polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, could be used as an auxiliary in islet cell transplantation to improve or promote islet cell function. Neural Activity and Neurological Diseases [776] The polynucleotides, polypeptides and agonists or antagonists ofthe invention may be used for the diagnosis and/or treatment of diseases, disorders, damage or injury of the brain and/or nervous system. Nervous system disorders that can be treated with the compositions of the invention (e.g., polypeptides, polynucleotides, and/or agonists or antagonists), include, but are not limited to, nervous system injuries, and diseases or disorders which result in either a disconnection of axons, a diminution or degeneration of neurons, or demyelination. Nervous system lesions which may be treated in a patient (including human and non-human mammalian patients) according to the methods of the invention, include but are not limited to, the following lesions of either the central (including spinal cord, brain) or peripheral nervous systems: (1) ischemic lesions, in which a lack of oxygen in a portion of the nervous system results in neuronal injury or death, including cerebral infarction or ischemia, or spinal cord infarction or ischemia; (2) traumatic lesions, including lesions caused by physical injury or associated with surgery, for example, lesions which sever a portion of the nervous system, or compression injuries; (3) malignant lesions, in which a portion of the nervous system is desfroyed or injured by malignant tissue which is either a nervous system associated malignancy or a malignancy derived from non-nervous system tissue; (4) infectious lesions, in which a portion ofthe nervous system is destroyed or injured as a result of infection, for example, by an abscess or associated with infection by human immunodeficiency virus, heφes zoster, or heφes simplex virus or with Lyme disease, tuberculosis, or syphilis; (5) degenerative lesions, in which a portion of the nervous system is destroyed or injured as a result of a degenerative process including but not limited to, degeneration associated with Parkinson's disease, Alzheimer's disease, Huntington's chorea, or amyotrophic lateral sclerosis (ALS); (6) lesions associated with nutritional diseases or disorders, in which a portion of the nervous system is destroyed or injured by a nutritional disorder or disorder of metabolism including, but not limited to, vitamin B 12 deficiency, folic acid deficiency, Wernicke disease, tobacco-alcohol amblyopia, Marchiafava-Bignami disease (primary degeneration of the coφus callosum), and alcoholic cerebellar degeneration; (7) neurological lesions associated with systemic diseases including, but not limited to, diabetes (diabetic neuropathy, Bell's palsy), systemic lupus erythematosus, carcinoma, or sarcoidosis; (8) lesions caused by toxic substances including alcohol, lead, or particular neurotoxins; and (9) demyelinated lesions in which a portion ofthe nervous system is destroyed or injured by a demyelinating disease including, but not limited to, multiple sclerosis, human immunodeficiency virus-associated myelopathy, transverse myelopathy or various etiologies, progressive multifocal leukoencephalopathy, and central pontine myelinolysis. [777] In one embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to protect neural cells from the damaging effects of hypoxia. hi a further preferred embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to protect neural cells from the damaging effects of cerebral hypoxia. According to this embodiment, the compositions of the invention are used to treat or prevent neural cell injury associated with cerebral hypoxia. hi one non-exclusive aspect of this embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention, are used to treat or prevent neural cell injury associated with cerebral ischemia. In another non-exclusive aspect of this embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to treat or prevent neural cell injury associated with cerebral infarction. [778] In another preferred embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to treat or prevent neural ceU injury associated with a stroke. In a specific embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to treat or prevent cerebral neural cell injury associated with a stroke. [779] In another preferred embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to treat or prevent neural cell injury associated with a heart attack, hi a specific embodiment, the polypeptides, polynucleotides, or agonists or antagonists of the invention are used to treat or prevent cerebral neural cell injury associated with a heart attack. [780] The compositions of the invention which are useful for treating or preventing a nervous system disorder may be selected by testing for biological activity in promoting the survival or differentiation of neurons. For example, and not by way of limitation, compositions of the invention which elicit any of the following effects may be useful according to the invention: (1) increased survival time of neurons in culture either in the presence or absence of hypoxia or hypoxic conditions; (2) increased sprouting of neurons in culture or in vivo; (3) increased production of a neuron-associated molecule in culture or in vivo, e.g., choline acetyltransferase or acetylcholinesterase with respect to motor neurons; or (4) decreased symptoms of neuron dysfunction in vivo. Such effects may be measured by any method known in the art. In preferred, non-limiting embodiments, increased survival of neurons may routinely be measured using a method set forth herein or otherwise known in the art, such as, for example, in Zhang et al, Proc Natl Acad Sci USA 97:3637-42 (2000) or in Arakawa et al, J. Neurosc , 10:3501-15 (1990); increased sprouting of neurons may be detected by methods known in the art, such as, for example, the methods set forth in Pestronk et al, Exp. Neurol, 70:65-82 (1980), or Brown et al, Ann. Rev. Neuroscl, 4:11-42 (1981); increased production of neuron-associated molecules may be measured by bioassay, enzymatic assay, antibody binding, Northern blot assay, etc., using techniques known in the art and depending on the molecule to be measured; and motor neuron dysfunction may be measured by assessing the physical manifestation of motor neuron disorder, e.g., weakness, motor neuron conduction velocity, or functional disability. [781] In specific embodiments, motor neuron disorders that may be freated according to the invention include, but are not limited to, disorders such as infarction, infection, exposure to toxin, trauma, surgical damage, degenerative disease or malignancy that may affect motor neurons as well as other components of the nervous system, as well as disorders that selectively affect neurons such as amyotrophic lateral sclerosis, and including, but not limited to, progressive spinal muscular atrophy, progressive bulbar palsy, primary lateral sclerosis, infantile and juvenile muscular atrophy, progressive bulbar paralysis of childhood (Fazio- Londe syndrome), poliomyelitis and the post polio syndrome, and Hereditary Motorsensory Neuropathy (Charcot-Marie-Tooth Disease). [782] Further, polypeptides or polynucleotides of the invention may play a role in neuronal survival; synapse formation; conductance; neural differentiation, etc. Thus, compositions of the invention (including polynucleotides, polypeptides, and agonists or antagonists) may be used to diagnose and/or treat or prevent diseases or disorders associated with these roles, including, but not limited to, learning and/or cognition disorders. The compositions of the invention may also be useful in the treatment or prevention of neurodegenerative disease states and/or behavioural disorders. Such neurodegenerative disease states and/or behavioral disorders include, but are not limited to, Alzheimer's Disease, Parkinson's Disease, Huntington's Disease, Tourette Syndrome, schizophrenia, mania, dementia, paranoia, obsessive compulsive disorder, panic disorder, learning disabilities, ALS, psychoses, autism, and altered behaviors, including disorders in feeding, sleep patterns, balance, and perception, hi addition, compositions of the invention may also play a role in the treatment, prevention and/or detection of developmental disorders associated with the developing embryo, or sexually-linked disorders. [783] Additionally, polypeptides, polynucleotides and/or agonists or antagonists of the invention, may be useful in protecting neural cells from diseases, damage, disorders, or injury, associated with cerebrovascular disorders including, but not limited to, carotid artery diseases (e.g., carotid artery thrombosis, carotid stenosis, or Moyamoya Disease), cerebral amyloid angiopathy, cerebral aneurysm, cerebral anoxia, cerebral arteriosclerosis, cerebral arteriovenous malformations, cerebral artery diseases, cerebral embolism and thrombosis (e.g., carotid artery thrombosis, sinus thrombosis, or Wallenberg's Syndrome), cerebral hemorrhage (e.g., epidural or subdural hematoma, or subarachnoid hemorrhage), cerebral infarction, cerebral ischemia (e.g., transient cerebral ischemia, Subclavian Steal Syndrome, or vertebrobasilar insufficiency), vascular dementia (e.g., multi-infarct), leukomalacia, periventricular, and vascular headache (e.g., cluster headache or migraines). [784] hi accordance with yet a further aspect ofthe present invention, there is provided a process for utilizing polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, for therapeutic proposes, for example, to stimulate neurological cell proliferation and/or differentiation. Therefore, polynucleotides, polypeptides, agonists and/or antagonists of the invention may be used to treat and/or detect neurologic diseases. Moreover, polynucleotides or polypeptides, or agonists or antagonists ofthe invention, can be used as a marker or detector of a particular nervous system disease or disorder. [785] Examples of neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include brain diseases, such as metabolic brain diseases which includes phenylketonuria such as maternal phenylketonuria, pyravate carboxylase deficiency, pyruvate dehydrogenase complex deficiency, Wemicke's Encephalopathy, brain edema, brain neoplasms such as cerebellar neoplasms which include infratentorial neoplasms, cerebral ventricle neoplasms such as choroid plexus neoplasms, hypothalamic neoplasms, supratentorial neoplasms, canavan disease, cerebellar diseases such as cerebellar ataxia which include spinocerebellar degeneration such as ataxia telangiectasia, cerebellar dyssynergia, Friederich's Ataxia, Machado-Joseph Disease, olivopontocerebellar atrophy, cerebellar neoplasms such as infratentorial neoplasms, diffuse cerebral sclerosis such as encephalitis periaxialis, globoid cell leukodystrophy, metachromatic leukodystrophy and subacute sclerosing panencephalitis. [786] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include cerebrovascular disorders (such as carotid artery diseases which include carotid artery thrombosis, carotid stenosis and Moyamoya Disease), cerebral amyloid angiopathy, cerebral aneurysm, cerebral anoxia, cerebral arteriosclerosis, cerebral arteriovenous malformations, cerebral artery diseases, cerebral embolism and thrombosis such as carotid artery thrombosis, sinus thrombosis and Wallenberg's Syndrome, cerebral hemorrhage such as epidural hematoma, subdural hematoma and subarachnoid hemorrhage, cerebral infarction, cerebral ischemia such as transient cerebral ischemia, Subclavian Steal Syndrome and vertebrobasilar insufficiency, vascular dementia such as multi-infarct dementia, periventricular leukomalacia, vascular headache such as cluster headache and migraine. [787] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include dementia such as ADDS Dementia Complex, presenile dementia such as Alzheimer's Disease and Creutzfeldt-Jakob Syndrome, senile dementia such as Alzheimer's Disease and progressive supranuclear palsy, vascular dementia such as multi-infarct dementia, encephalitis which include encephalitis periaxialis, viral encephalitis such as epidemic encephalitis, Japanese Encephalitis, St. Louis Encephalitis, tick-borne encephalitis and West Nile Fever, acute disseminated encephalomyelitis, meningoencephalitis such as uveomeningoencephalitic syndrome, Postencephalitic Parkinson Disease and subacute sclerosing panencephalitis, encephalomalacia such as periventricular leukomalacia, epilepsy such as generalized epilepsy which includes infantile spasms, absence epilepsy, myoclonic epilepsy which includes MERRF Syndrome, tonic-clonic epilepsy, partial epilepsy such as complex partial epilepsy, frontal lobe epilepsy and temporal lobe epilepsy, post-traumatic epilepsy, status epilepticus such as Epilepsia Partialis Continua, and Hallervorden-Spatz Syndrome. [788] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include hydrocephalus such as Dandy- Walker Syndrome and normal pressure hydrocephalus, hypothalamic diseases such as hypothalamic neoplasms, cerebral malaria, narcolepsy which includes cataplexy, bulbar poliomyelitis, cerebri pseudotumor, Rett Syndrome, Reye's Syndrome, thalamic diseases, cerebral toxoplasmosis, intracranial tuberculoma and Zellweger Syndrome, central nervous system infections such as ADDS Dementia Complex, Brain Abscess, subdural empyema, encephalomyelitis such as Equine Encephalomyelitis, Venezuelan Equine Encephalomyelitis, Necrotizing Hemorrhagic Encephalomyelitis, Visna, and cerebral malaria. [789] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include meningitis such as arachnoiditis, aseptic meningtitis such as viral meningtitis which includes lymphocytic choriomemngitis, Bacterial meningtitis which includes Haemophilus Meningtitis, Listeria Meningtitis, Meningococcal Meningtitis such as Waterhouse- Friderichsen Syndrome, Pneumococcal Meningtitis and meningeal tuberculosis, fungal meningitis such as Cryptococcal Meningtitis, subdural effusion, meningoencephalitis such as uvemenmgoencephalitic syndrome, myelitis such as transverse myelitis, neurosyphilis such as tabes dorsalis, poliomyelitis which includes bulbar poliomyelitis and postpoliomyelitis syndrome, prion diseases (such as Creutzfeldt-Jakob Syndrome, Bovine Spongiform Encephalopathy, Gerstmann-Straussler Syndrome, Kura, Scrapie), and cerebral toxoplasmosis. [790] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include central nervous system neoplasms such as brain neoplasms that include cerebellar neoplasms such as infratentorial neoplasms, cerebral ventricle neoplasms such as choroid plexus neoplasms, hypothalamic neoplasms and supratentorial neoplasms, meningeal neoplasms, spinal cord neoplasms which include epidural neoplasms, demyelinating diseases such as Canavan Diseases, diffuse cerebral sceloris which includes adrenoleukodystrophy, encephalitis periaxialis, globoid cell leukodystrophy, diffuse cerebral sclerosis such as metachromatic leukodystrophy, allergic encephalomyelitis, necrotizing hemorrhagic encephalomyelitis, progressive multifocal leukoencephalopathy, multiple sclerosis, central pontine myelinolysis, transverse myelitis, neuromyelitis optica, Scrapie, Swayback, Chronic Fatigue Syndrome, Visna, High Pressure Nervous Syndrome, Meningism, spinal cord diseases such as amyotonia congenita, amyotrophic lateral sclerosis, spinal muscular atrophy such as Werdnig-Hoffinann Disease, spinal cord compression, spinal cord neoplasms such as epidural neoplasms, syringomyelia, Tabes Dorsalis, Stiff-Man Syndrome, mental retardation such as Angelman Syndrome, Cri-du-Chat Syndrome, De Lange's Syndrome, Down Syndrome, Gangliosidoses such as gangliosidoses G(M1), Sandhoff Disease, Tay-Sachs Disease, Hartnup Disease, homocystinuria, Laurence-Moon- Biedl Syndrome, Lesch-Nyhan Syndrome, Maple Syrup Urine Disease, mucolipidosis such as fucosidosis, neuronal ceroid- lipofuscinosis, oculocerebrorenal syndrome, phenylketonuria such as maternal phenylketonuria, Prader-Willi Syndrome, Rett Syndrome, Rubinstein-Taybi Syndrome, Tuberous Sclerosis, WAGR Syndrome, nervous system abnormalities such as holoprosencephaly, neural tube defects such as anencephaly which includes hydrangencephaly, Arnold-Chairi Deformity, encephalocele, meningocele, meningomyelocele, spinal dysraphism such as spina bifida cystica and spina bifida occulta. [791] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include hereditary motor and sensory neuropathies which include Charcot-Marie Disease, Hereditary optic atrophy, Refsum's Disease, hereditary spastic paraplegia, Werdnig-Hoffhiann Disease, Hereditary Sensory and Autonomic Neuropathies such as Congenital Analgesia and Familial Dysautonomia, Neurologic manifestations (such as agnosia that include Gerstmann's Syndrome, Amnesia such as retrograde amnesia, apraxia, neurogenic bladder, cataplexy, communicative disorders such as hearing disorders that includes deafness, partial hearing loss, loudness recruitment and tinnitus, language disorders such as aphasia which include agraphia, anomia, broca aphasia, and Wemicke Aphasia, Dyslexia such as Acquired Dyslexia, language development disorders, speech disorders such as aphasia which includes anomia, broca aphasia and Wemicke Aphasia, articulation disorders, communicative disorders such as speech disorders which include dysarthria, echolalia, mutism and stuttering, voice disorders such as aphonia and hoarseness, decerebrate state, delirium, fasciculation, hallucinations, meningism, movement disorders such as angelman syndrome, ataxia, athetosis, chorea, dystonia, hypokinesia, muscle hypotonia, myoclonus, tic, torticollis and tremor, muscle hypertonia such as muscle rigidity such as stiff-man syndrome, muscle spasticity, paralysis such as facial paralysis which includes Heφes Zoster Oticus, Gastroparesis, Hemiplegia, ophthalmoplegia such as diplopia, Duane's Syndrome, Homer's Syndrome, Chronic progressive external ophthalmoplegia such as Kearns Syndrome, Bulbar Paralysis, Tropical Spastic Paraparesis, Paraplegia such as Brown-Sequard Syndrome, quadriplegia, respiratory paralysis and vocal cord paralysis, paresis, phantom limb, taste disorders such as ageusia and dysgeusia, vision disorders such as amblyopia, blindness, color vision defects, diplopia, hemianopsia, scotoma and subnormal vision, sleep disorders such as hypersomnia which includes Kleine-Levin Syndrome, insomnia, and somnambulism, spasm such as trismus, unconsciousness such as coma, persistent vegetative state and syncope and vertigo, neuromuscular diseases such as amyotonia congenita, amyotrophic lateral sclerosis, Lambert-Eaton Myasthenic Syndrome, motor neuron disease, muscular atrophy such as spinal muscular atrophy, Charcot-Marie Disease and Werdnig-Hoffmann Disease, Postpoliomyelitis Syndrome, Muscular Dystrophy, Myasthenia Gravis, Myotonia Atrophica, Myotonia Confenita, Nemaline Myopathy, Familial Periodic Paralysis, Multiplex Paramyloclonus, Tropical Spastic Paraparesis and Stiff-Man Syndrome, peripheral nervous system diseases such as acrodynia, amyloid neuropathies, autonomic nervous system diseases such as Adie's Syndrome, Barre-Lieou Syndrome, Familial Dysautonomia, Homer's Syndrome, Reflex Sympathetic Dystrophy and Shy-Drager Syndrome, Cranial Nerve Diseases such as Acoustic Nerve Diseases such as Acoustic Neuroma which includes Neurofibromatosis 2, Facial Nerve Diseases such as Facial Neuralgia,Melkersson-Rosenthal Syndrome, ocular motility disorders which includes amblyopia, nystagmus, oculomotor nerve paralysis, ophthalmoplegia such as Duane's Syndrome, Homer's Syndrome, Chronic Progressive External Ophthalmoplegia which includes Kearns Syndrome, Strabismus such as Esotropia and Exotropia, Oculomotor Nerve Paralysis, Optic Nerve Diseases such as Optic Atrophy which includes Hereditary Optic Atrophy, Optic Disk Drasen, Optic Neuritis such as Neuromyelitis Optica, Papilledema, Trigeminal Neuralgia, Vocal Cord Paralysis, Demyelinating Diseases such as Neuromyelitis Optica and Swayback, and Diabetic neuropathies such as diabetic foot. [792] Additional neurologic diseases which can be treated or detected with polynucleotides, polypeptides, agonists, and/or antagonists of the present invention include nerve compression syndromes such as caφal tunnel syndrome, tarsal tunnel syndrome, thoracic outlet syndrome such as cervical rib syndrome, ulnar nerve compression syndrome, neuralgia such as causalgia, cervico-brachial neuralgia, facial neuralgia and trigeminal neuralgia, neuritis such as experimental allergic neuritis, optic neuritis, polyneuritis, polyradiculoneuritis and radiculities such as polyradiculitis, hereditary motor and sensory neuropathies such as Charcot-Marie Disease, Hereditary Optic Atrophy, Refsum's Disease, Hereditary Spastic Paraplegia and Werdnig-Hoffhiann Disease, Hereditary Sensory and Autonomic Neuropathies which include Congenital Analgesia and Familial Dysautonomia, POEMS Syndrome, Sciatica, Gustatory Sweating and Tetany). Endocrine Disorders [793] .Polynucleotides or polypeptides, or agonists or antagonists of the present invention, may be used to treat, prevent, diagnose, and/or prognose disorders and/or diseases related to hormone imbalance, and/or disorders or diseases ofthe endocrine system. [794] Hormones secreted by the glands of the endocrine system control physical growth, sexual function, metabolism, and other functions. Disorders may be classified in two ways: disturbances in the production of hormones, and the inability of tissues to respond to hormones. The etiology of these hormone imbalance or endocrine system diseases, disorders or conditions may be genetic, somatic, such as cancer and some autoimmune diseases, acquired (e.g., by chemotherapy, injury or toxins), or infectious. Moreover, polynucleotides, polypeptides, antibodies, and/or agonists or antagonists of the present invention can be used as a marker or detector of a particular disease or disorder related to the endocrine system and/or hormone imbalance. [795] Endocrine system and/or hormone imbalance and/or diseases encompass disorders of uterine motility including, but not limited to: complications with pregnancy and labor (e.g., pre-tenn labor, post-term pregnancy, spontaneous abortion, and slow or stopped labor); and disorders and/or diseases ofthe menstrual cycle (e.g., dysmenorrhea and endometriosis). [796] Endocrine system and/or hormone imbalance disorders and/or diseases include disorders and/or diseases of the pancreas, such as, for example, diabetes mellitus, diabetes insipidus, congenital pancreatic agenesis, pheochromocytoma—islet cell tumor syndrome; disorders and/or diseases of the adrenal glands such as, for example, Addison's Disease, corticosteroid deficiency, virilizing disease, hirsutism, Cushing's Syndrome, hyperaldosteronism, pheochromocytoma; disorders and/or diseases of the pituitary gland, such as, for example, hypeφituitarism, hypopituitarism, pituitary dwarfism, pituitary adenoma, panhypopituitarism, acromegaly, gigantism; disorders and/or diseases of the thyroid, including but not limited to, hyperthyroidism, hypothyroidism, Plummer's disease, Graves' disease (toxic diffuse goiter), toxic nodular goiter, thyroiditis (Hashimoto's thyroiditis, subacute granulomatous thyroiditis, and silent lymphocytic thyroiditis), Pendred's syndrome, myxedema, cretinism, thyrotoxicosis, thyroid hormone coupling defect, thymic aplasia, Hurthle cell tumours of the thyroid, thyroid cancer, thyroid carcinoma, Medullary thyroid carcinoma; disorders and/or diseases of the parathyroid, such as, for example, hypeφarathyroidism, hypoparathyroidism; disorders and/or diseases ofthe hypothalamus. [797] In specific embodiments, the polynucleotides and/or polypeptides corresponding to this gene and/or agonists or antagonists of those polypeptides (including antibodies) as well as fragments and variants of those polynucleotides, polypeptides, agonists and antagonists, may be used to diagnose, prognose, treat, prevent, or ameliorate diseases and disorders associated with aberrant glucose metabolism or glucose uptake into cells. [798] hi a specific embodiment, the polynucleotides and/or polypeptides corresponding to this gene and/or agonists and/or antagonists thereof may be used to diagnose, prognose, treat, prevent, and/or ameliorate type I diabetes mellitus (insulin dependent diabetes mellitus, DDDM). [799] hi another embodiment, the polynucleotides and/or polypeptides corresponding to this gene and/or agonists and/or antagonists thereof may be used to diagnose, prognose, treat, prevent, and/or ameliorate type Et diabetes mellitus (insulin resistant diabetes mellitus). [800] Additionally, in other embodiments, the polynucleotides and/or polypeptides corresponding to this gene and/or antagonists thereof (especially neutralizing or antagonistic antibodies) may be used to diagnose, prognose, treat, prevent, or ameliorate conditions associated with (type I or type ET) diabetes mellitus, including, but not limited to, diabetic ketoacidosis, diabetic coma, nonketotic hyperglycemic-hyperosmolar coma, seizures, mental confusion, drowsiness, cardiovascular disease (e.g., heart disease, atherosclerosis, microvascular disease, hypertension, stroke, and other diseases and disorders as described in the "Cardiovascular Disorders" section), dyslipidemia, kidney disease (e.g., renal failure, nephropathy other diseases and disorders as described in the "Renal Disorders" section), nerve damage, neuropathy, vision impairment (e.g., diabetic retinopathy and blindness), ulcers and impaired wound healing, infections (e.g., infectious diseases and disorders as described in the "Infectious Diseases" section, especially ofthe urinary tract and skin), caφal tunnel syndrome and Dupuytren's contracture. [801] In other embodiments, the polynucleotides and/or polypeptides corresponding to this gene and/or agonists or antagonists thereof are administered to an animal, preferably a mammal, and most preferably a human, in order to regulate the animal's weight. In specific embodiments the polynucleotides and/or polypeptides corresponding to this gene and/or agonists or antagonists thereof are administered to an animal, preferably a mammal, and most preferably a human, in order to control the animal's weight by modulating a biochemical pathway involving insulin. In still other embodiments the polynucleotides and/or polypeptides corresponding to this gene and/or agonists or antagonists thereof are administered to an animal, preferably a mammal, and most preferably a human, in order to control the animal's weight by modulating a biochemical pathway involving insulin-like growth factor. [802] hi addition, endocrine system and/or hormone imbalance disorders and/or diseases may also include disorders and/or diseases of the testes or ovaries, including cancer. Other disorders and/or diseases ofthe testes or ovaries further include, for example, ovarian cancer, polycystic ovary syndrome, Klinefelter's syndrome, vanishing testes syndrome (bilateral anorchia), congenital absence of Leydig's cells, cryptorchidism, Noonan's syndrome, myotonic dystrophy, capillary haemangioma ofthe testis (benign), neoplasias ofthe testis and neo-testis. [803] Moreover, endocrine system and/or hormone imbalance disorders and/or diseases may also include disorders and/or diseases such as, for example, polyglandular deficiency syndromes, pheochromocytoma, neuroblastoma, multiple Endocrine neoplasia, and disorders and/or cancers of endocrine tissues. [804] In another embodiment, a polypeptide of the invention, or polynucleotides, antibodies, agonists, or antagonists corresponding to that polypeptide, may be used to diagnose, prognose, prevent, and/or treat endocrine diseases and/or disorders associated with the tissue(s) in which the polypeptide ofthe invention is expressed, including one, two, three, four, five, or more tissues disclosed in Table 10, column 2 (Library Code). Reproductive System Disorders [805] The polynucleotides or polypeptides, or agonists or antagonists of the invention may be used for the diagnosis, treatment, or prevention of diseases and/or disorders of the reproductive system. Reproductive system disorders that can be treated by the compositions of the invention, include, but are not limited to, reproductive system injuries, infections, neoplastic disorders, congenital defects, and diseases or disorders which result in infertility, complications with pregnancy, labor, or parturition, and postpartum difficulties. [806] Reproductive system disorders and/or diseases include diseases and/or disorders of the testes, including testicular atrophy, testicular feminization, cryptorchism (unilateral and bilateral), anorchia, ectopic testis, epididymitis and orchitis (typically resulting from infections such as, for example, gonorrhea, mumps, tuberculosis, and syphilis), testicular torsion, vasitis nodosa, germ cell tumors (e.g., seminomas, embryonal cell carcinomas, teratocarcinomas, choriocarcinomas, yolk sac tumors, and teratomas), stromal tumors (e.g., Leydig cell tumors), hydrocele, hematocele, varicocele, spermatocele, inguinal hernia, and disorders of sperm production (e.g., immotile cilia syndrome, aspermia, asthenozoospermia, azoospermia, oligospermia, and teratozoospermia). [807] Reproductive system disorders also include disorders ofthe prostate gland, such as acute non-bacterial prostatitis, chronic non-bacterial prostatitis, acute bacterial prostatitis, chronic bacterial prostatitis, prostatodystonia, prostatosis, granulomatous prostatitis, malacoplakia, benign prostatic hypertrophy or hypeφlasia, and prostate neoplastic disorders, including adenocarcinomas, transitional cell carcinomas, ductal carcinomas, and squamous cell carcinomas. [808] Additionally, the compositions of the invention may be useful in the diagnosis, treatment, and/or prevention of disorders or diseases of the penis and urethra, including inflammatory disorders, such as balanoposthitis, balanitis xerotica obliterans, phimosis, paraphimosis, syphilis, heφes simplex virus, gonorrhea, non-gonococcal urethritis, chlamydia, mycoplasma, trichomonas, HIN, ADDS, Reiter's syndrome, condyloma acuminatum, condyloma latum, and pearly penile papules; urethral abnormalities, such as hypospadias, epispadias, and phimosis; premalignant lesions, including Erythroplasia of Queyrat, Bowen's disease, Bowenoid paplosis, giant condyloma of Buscke-Lowenstein, and varrucous carcinoma; penile cancers, including squamous cell carcinomas, carcinoma in situ, verrucous carcinoma, and disseminated penile carcinoma; urethral neoplastic disorders, including penile urethral carcinoma, bulbomembranous urethral carcinoma, and prostatic urethral carcinoma; and erectile disorders, such as priapism, Peyronie's disease, erectile dysfunction, and impotence. [809] Moreover, diseases and/or disorders of the vas deferens include vasculititis and CBAVD (congenital bilateral absence of the vas deferens); additionally, the polynucleotides, polypeptides, and agonists or antagonists of the present invention may be used in the diagnosis, treatment, and/or prevention of diseases and/or disorders of the seminal vesicles, including hydatid disease, congenital chloride diarrhea, and polycystic kidney disease. [810] Other disorders and/or diseases of the male reproductive system include, for example, Klinefelter's syndrome, Young's syndrome, premature ejaculation, diabetes mellitus, cystic fibrosis, Kartagener's syndrome, high fever, multiple sclerosis, and gynecomastia. [811] Further, the polynucleotides, polypeptides, and agonists or antagonists of the present invention may be used in the diagnosis, treatment, and/or prevention of diseases and/or disorders of the vagina and vulva, including bacterial vaginosis, Candida vaginitis, heφes simplex virus, chancroid, granuloma inguinale, lymphogranuloma venereum, scabies, human papillomavirus, vaginal trauma, vulvar trauma, adenosis, chlamydia vaginitis, gonorrhea, trichomonas vaginitis, condyloma acuminatum, syphilis, molluscum contagiosum, atrophic vaginitis, Paget's disease, lichen sclerosus, lichen planus, vulvodynia, toxic shock syndrome, vaginismus, vulvovaginitis, vulvar vestibulitis, and neoplastic disorders, such as squamous cell hypeφlasia, clear cell carcinoma, basal cell carcinoma, melanomas, cancer of Bartholin's gland, and vulvar intraepithelial neoplasia. [812] Disorders and/or diseases of the uteras include dysmenorrhea, retroverted uteras, endometriosis, fibroids, adenomyosis, anovulatory bleeding, amenorrhea, Cushing's syndrome, hydatidiform moles, Asherman's syndrome, premature menopause, precocious puberty, uterine polyps, dysfunctional uterine bleeding (e.g., due to aberrant hormonal signals), and neoplastic disorders, such as adenocarcinomas, keiomyosarcomas, and sarcomas. Additionally, the polypeptides, polynucleotides, or agonists or antagonists of the invention may be useful as a marker or detector of, as well as in the diagnosis, treatment, and/or prevention of congenital uterine abnormalities, such as bicomuate uteras, septate uterus, simple unicomuate uteras, unicornuate uteras with a noncavitary rudimentary hom, unicornuate uteras with a non-communicating cavitary rudimentary hom, unicomuate uteras with a communicating cavitary hom, arcuate uterus, uterine didelfus, and T-shaped uteras. [813] Ovarian diseases and/or disorders include anovulation, polycystic ovary syndrome (Stein-Leventhal syndrome), ovarian cysts, ovarian hypofunction, ovarian insensitivity to gonadotropins, ovarian oveφroduction of androgens, right ovarian vein syndrome, amenorrhea, hirutism, and ovarian cancer (including, but not limited to, primary and secondary cancerous growth, Sertoli-Leydig tumors, endometriod carcinoma of the ovary, ovarian papillary serous adenocarcinoma, ovarian mucinous adenocarcinoma, and Ovarian Krukenberg tumors). [814] Cervical diseases and/or disorders include cervicitis, chronic cervicitis, mucopurulent cervicitis, cervical dysplasia, cervical polyps, Nabotbian cysts, cervical erosion, cervical incompetence, and cervical neoplasms (including, for example, cervical carcinoma, squamous metaplasia, squamous cell carcinoma, adenosquamous cell neoplasia, and columnar cell neoplasia). [815] Additionally, diseases and/or disorders of the reproductive system include disorders and/or diseases of pregnancy, including miscarriage and stillbirth, such as early abortion, late abortion, spontaneous abortion, induced abortion, therapeutic abortion, threatened abortion, missed abortion, incomplete abortion, complete abortion, habitual abortion, missed abortion, and septic abortion; ectopic pregnancy, anemia, Rh incompatibility, vaginal bleeding during pregnancy, gestational diabetes, intrauterine growth retardation, polyhydramnios, HELLP syndrome, abruptio placentae, placenta previa, hyperemesis, preeclampsia, eclampsia, heφes gestationis, and urticaria of pregnancy. Additionally, the polynucleotides, polypeptides, and agonists or antagonists of the present invention may be used in the diagnosis, treatment, and/or prevention of diseases that can complicate pregnancy, including heart disease, heart failure, rheumatic heart disease, congenital heart disease, mitral valve prolapse, high blood pressure, anemia, kidney disease, infectious disease (e.g., rubella, cytomegalovirus, toxoplasmosis, infectious hepatitis, chlamydia, HIN, ADDS, and genital heφes), diabetes mellitus, Graves' disease, thyroiditis, hypothyroidism, Hashimoto's thyroiditis, chronic active hepatitis, cirrhosis of the liver, primary biliary cirrhosis, asthma, systemic lupus eryematosis, rheumatoid arthritis, myasthenia gravis, idiopathic thrombocytopenic puφura, appendicitis, ovarian cysts, gallbladder disorders,and obstruction ofthe intestine. [816] Complications associated with labor and parturition include premature rupture of the membranes, pre-term labor, post-term pregnancy, postmaturity, labor that progresses too slowly, fetal distress (e.g., abnormal heart rate (fetal or maternal), breathing problems, and abnormal fetal position), shoulder dystocia, prolapsed umbilical cord, amniotic fluid embolism, and aberrant uterine bleeding. [817] Further, diseases and/or disorders of the postdelivery period, including endometritis, myometritis, parametritis, peritonitis, pelvic thrombophlebitis, pulmonary embolism, endotoxemia, pyelonephritis, saphenous thrombophlebitis, mastitis, cystitis, postpartum hemorrhage, and inverted uteras. [818] Other disorders and/or diseases of the female reproductive system that may be diagnosed, freated, and/or prevented by the polynucleotides, polypeptides, and agonists or antagonists of the present invention include, for example, Turner's syndrome, pseudohermaphroditism, premenstraal syndrome, pelvic inflammatory disease, pelvic congestion (vascular engorgement), frigidity, anorgasmia, dyspareunia, raptured fallopian tube, and Mittelschmerz. Infectious Disease [819] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention can be used to treat or detect infectious agents. For example, by increasing the immune response, particularly increasing the proliferation and differentiation of B and/or T cells, infectious diseases may be treated. The immune response may be increased by either enhancing an existing immune response, or by initiating a new immune response. Alternatively, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention may also directly inhibit the infectious agent, without necessarily eliciting an immune response. [820] Viruses are one example of an infectious agent that can cause disease or symptoms that can be treated or detected by a polynucleotide or polypeptide and/or agonist or antagonist of the present invention. Examples of virases, include, but are not limited to Examples of virases, include, but are not limited to the following DNA and RNA virases and viral families: Arboviras, Adenoviridae, Arenaviridae, Arteriviras, Birnaviridae, Bunyaviridae, Caliciviridae, Circoviridae, Coronaviridae, Dengue, EBV, HIV, Flaviviridae, Hepadnaviridae (Hepatitis), Heφesviridae (such as, Cytomegalovirus, Heφes Simplex, Heφes Zoster), Mononegaviras (e.g., Paramyxoviridae, Morbilliviras, Rhabdoviridae), Orthomyxoviridae (e.g., Influenza A, Influenza B, and parainfluenza), Papiloma virus, Papovaviridae, Parvoviridae, Picornaviridae, Poxviridae (such as Smallpox or Vaccinia), Reoviridae (e.g., Rotavirus), Retroviridae (HTLV-I, HTLV-EL Lentiviras), and Togaviridae (e.g., Rubivirus). Viruses falling within these families can cause a variety of diseases or symptoms, including, but not limited to: arthritis, bronchiollitis, respiratory syncytial virus, encephalitis, eye infections (e.g., conjunctivitis, keratitis), chronic fatigue syndrome, hepatitis (A, B, C, E, Chronic Active, Delta), Japanese B encephalitis, Junin, Chikungunya, Rift Valley fever, yellow fever, meningitis, opportunistic infections (e.g., ADDS), pneumonia, Burkitt's Lymphoma, chickenpox, hemorrhagic fever, Measles, Mumps, Parainfluenza, Rabies, the common cold, Polio, leukemia, Rubella, sexually transmitted diseases, skin diseases (e.g., Kaposi's, warts), and viremia. polynucleotides or polypeptides, or agonists or antagonists of the invention, can be used to treat or detect any of these symptoms or diseases, hi specific embodiments, polynucleotides, polypeptides, or agonists or antagonists of the invention are used to treat: meningitis, Dengue, EBV, and or hepatitis (e.g., hepatitis B). In an additional specific embodiment polynucleotides, polypeptides, or agonists or antagonists of the invention are used to treat patients nonresponsive to one or more other commercially available hepatitis vaccines, hi a further specific embodiment polynucleotides, polypeptides, or agonists or antagonists ofthe invention are used to treat ADDS. [821] Similarly, bacterial and fungal agents that can cause disease or symptoms and that can be treated or detected by a polynucleotide or polypeptide and/or agonist or antagonist of the present invention include, but not limited to, the following Gram-Negative and Gram- positive bacteria, bacterial families, and fungi: Actinomyces (e.g., Norcardia), Acinetobacter, Cryptococcus neoformans, Aspergillus, Bacillaceae (e.g., Bacillus anthrasis), Bacteroides (e.g., Bacteroides fragilis), Blastomycosis, Bordetella, Borrelia (e.g., Borrelia burgdorferi), Brucella, Candidia, Campylobacter, Chlamydia, Clostridium (e.g., Clostridium botulinum, Clostridium dificile, Clostridium perfringens, Clostridium tetani), Coccidioides, Corynebacterium (e.g., Corynebacterium diptheriae), Cryptococcus, Dermatocycoses, E. coli (e.g., Enterotoxigenic E. coli and Enterohemorrhagic E. coli), Enterobacter (e.g. Enterobacter aerogenes), Enterobacteriaceae (Klebsiella, Salmonella (e.g., Salmonella typhi, Salmonella enteritidis, Salmonella typhi), Serratia, Yersinia, Shigella), Erysipelothrix, Haemophilus (e.g., Haemophilus influenza type B), Helicobacter, Legionella (e.g., Legionella pneumophila), Leptospira, Listeria (e.g., Listeria monocytogenes), Mycoplasma, Mycobacterium (e.g., Mycobacterium leprae and Mycobacterium tuberculosis), Vibrio (e.g., Vibrio cholerae), Neisseriaceae (e.g., Neisseria gonorrhea, Neisseria meningitidis), Pasteurellacea, Proteus, Pseudomonas (e.g., Pseudomonas aeruginosa), Rickettsiaceae, Spirochetes (e.g., Treponema spp., Leptospira spp., Borrelia spp.), Shigella spp., Staphylococcus (e.g., Staphylococcus aureus), Meningiococcus, Pneumococcus and Streptococcus (e.g., Streptococcus pneumoniae and Groups A, B, and C Streptococci), and Ureaplasmas. These bacterial, parasitic, and fungal families can cause diseases or symptoms, including, but not limited to: antibiotic-resistant infections, bacteremia, endocarditis, septicemia, eye infections (e.g., conjunctivitis), uveitis, tuberculosis, gingivitis, bacterial diarrhea, opportunistic infections (e.g., ADDS related infections), paronychia, prosthesis- related infections, dental caries, Reiter's Disease, respiratory tract infections, such as Whooping Cough or Empyema, sepsis, Lyme Disease, Cat-Scratch Disease, dysentery, paratyphoid fever, food poisoning, Legionella disease, chronic and acute inflammation, erythema, yeast infections, typhoid, pneumonia, gonorrhea, meningitis (e.g., mengitis types A and B), chlamydia, syphillis, diphtheria, leprosy, brucellosis, peptic ulcers, anthrax, spontaneous abortions, birth defects, pneumonia, lung infections, ear infections, deafness, blindness, lethargy, malaise, vomiting, chronic diarrhea, Crohn's disease, colitis, vaginosis, sterility, pelvic inflammatory diseases, candidiasis, paratuberculosis, tuberculosis, lupus, botulism, gangrene, tetanus, impetigo, Rheumatic Fever, Scarlet Fever, sexually transmitted diseases, skin diseases (e.g., cellulitis, dermatocycoses), toxemia, urinary tract infections, wound infections, noscomial infections. Polynucleotides or polypeptides, agonists or antagonists ofthe invention, can be used to treat or detect any of these symptoms or diseases. In specific embodiments, polynucleotides, polypeptides, agonists or antagonists of the invention are used to treat: tetanus, diptheria, botulism, and/or meningitis type B. [822] Moreover, parasitic agents causing disease or symptoms that can be freated, prevented, and/or diagnosed by a polynucleotide or polypeptide and/or agonist or antagonist of the present invention include, but not limited to, the following families or class: Amebiasis, Babesiosis, Coccidiosis, Cryptosporidiosis, Dientamoebiasis, Dourine, Ectoparasitic, Giardias, Helminthiasis, Leishmaniasis, Schistisoma, Theileriasis, Toxoplasmosis, Trypanosomiasis, and Trichomonas and Sporozoans (e.g., Plasmodium virax, Plasmodium falciparium, Plasmodium malariae and Plasmodium ovale). These parasites can cause a variety of diseases or symptoms, including, but not limited to: Scabies, Trombiculiasis, eye infections, intestinal disease (e.g., dysentery, giardiasis), liver disease, lung disease, opportunistic infections (e.g., ADDS related), malaria, pregnancy complications, and toxoplasmosis. polynucleotides or polypeptides, or agonists or antagonists of the invention, can be used to treat, prevent, and/or diagnose any of these symptoms or diseases. hi specific embodiments, polynucleotides, polypeptides, or agonists or antagonists of the invention are used to treat, prevent, and/or diagnose malaria. [823] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention of the present invention could either be by administering an effective amount of a polypeptide to the patient, or by removing cells from the patient, supplying the cells with a polynucleotide of the present invention, and returning the engineered cells to the patient (ex vivo therapy). Moreover, the polypeptide or polynucleotide of the present invention can be used as an antigen in a vaccine to raise an immune response against infectious disease. Regeneration [824] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention can be used to differentiate, proliferate, and attract cells, leading to the regeneration of tissues. (See, Science 276:59-87 (1997)). The regeneration of tissues could be used to repair, replace, or protect tissue damaged by congenital defects, trauma (wounds, bums, incisions, or ulcers), age, disease (e.g. osteoporosis, osteocarthritis, periodontal disease, liver failure), surgery, including cosmetic plastic surgery, fibrosis, reperfusion injury, or systemic cytokine damage. [825] Tissues that could be regenerated using the present invention include organs (e.g., pancreas, liver, intestine, kidney, skin, endothelium), muscle (smooth, skeletal or cardiac), vasculature (including vascular and lymphatics), nervous, hematopoietic, and skeletal (bone, cartilage, tendon, and ligament) tissue. Preferably, regeneration occurs without or decreased scarring. Regeneration also may include angiogenesis. [826] Moreover, polynucleotides or polypeptides, as well as agonists or antagonists of the present invention, may increase regeneration of tissues difficult to heal. For example, increased tendon ligament regeneration would quicken recovery time after damage. Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention could also be used prophylactically in an effort to avoid damage. Specific diseases that could be treated include of tendinitis, caφal tunnel syndrome, and other tendon or ligament defects. A further example of tissue regeneration of non-healing wounds includes pressure ulcers, ulcers associated with vascular insufficiency, surgical, and traumatic wounds. [827] Similarly, nerve and brain tissue could also be regenerated by using polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention, to proliferate and differentiate nerve cells. Diseases that could be treated using this method include central and peripheral nervous system diseases, neuropathies, or mechanical and traumatic disorders (e.g., spinal cord disorders, head trauma, cerebrovascular disease, and stoke). Specifically, diseases associated with peripheral nerve injuries, peripheral neuropathy (e.g., resulting from chemotherapy or other medical therapies), localized neuropathies, and central nervous system diseases (e.g., Alzheimer's disease, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, and Shy-Drager syndrome), could all be freated using the polynucleotides or polypeptides, as well as agonists or antagonists of the present mvention. Gastrointestinal Disorders [828] Polynucleotides or polypeptides, or agonists or antagonists of the present invention, may be used to treat, prevent, diagnose, and/or prognose gastrointestinal disorders, including inflammatory diseases and/or conditions, infections, cancers (e.g., intestinal neoplasms (carcinoid tumor of the small intestine, non-Hodgkin's lymphoma of the small intestine, small bowl lymphoma)), and ulcers, such as peptic ulcers. [829] Gastrointestinal disorders include dysphagia, odynophagia, inflammation of the esophagus, peptic esophagitis, gastric reflux, submucosal fibrosis and stricturing, Mallory- Weiss lesions, leiomyomas, lipomas, epideπnal cancers, adeoncarcinomas, gastric retention disorders, gastroenteritis, gastric atrophy, gastric/stomach cancers, polyps of the stomach, autoimmune disorders such as pernicious anemia, pyloric stenosis, gastritis (bacterial, viral, eosinophilic, stress-induced, chronic erosive, atrophic, plasma cell, and Menetrier's), and peritoneal diseases (e.g., chyloperioneum, hemoperitoneum, mesenteric cyst, mesenteric lymphadenitis, mesenteric vascular occlusion, panniculitis, neoplasms, peritonitis, pneumoperitoneum, bubphrenic abscess,). [830] Gastrointestinal disorders also include disorders associated with the small intestine, such as malabsoφtion syndromes, distension, irritable bowel syndrome, sugar intolerance, celiac disease, duodenal ulcers, duodenitis, tropical sprue, Whipple's disease, intestinal lymphangiectasia, Crohn's disease, appendicitis, obstructions of the ileum, Meckel's diverticulum, multiple diverticula, failure of complete rotation of the small and large intestine, lymphoma, and bacterial and parasitic diseases (such as Traveler's diarrhea, typhoid and paratyphoid, cholera, infection by Roundworms (Ascariasis lumbricoides), Hookworms (Ancylostoma duodenale), Threadworms (Enterobius vermicularis), Tapeworms (Taenia saginata, Echinococcus granulosus, Diphyllobothrium spp., and T. solium). [831] Liver diseases and/or disorders include intrahepatic cholestasis (alagille syndrome, biliary liver cirrhosis), fatty liver (alcoholic fatty liver, reye syndrome), hepatic vein thrombosis, hepatolentricular degeneration, hepatomegaly, hepatopulmonary syndrome, hepatorenal syndrome, portal hypertension (esophageal and gastric varices), liver abscess (amebic liver abscess), liver cirrhosis (alcoholic, biliary and experimental), alcoholic liver diseases (fatty liver, hepatitis, cirrhosis), parasitic (hepatic echinococcosis, fascioliasis, amebic liver abscess), jaundice (hemolytic, hepatocellular, and cholestatic), cholestasis, portal hypertension, liver enlargement, ascites, hepatitis (alcoholic hepatitis, animal hepatitis, chronic hepatitis (autoimmune, hepatitis B, hepatitis C, hepatitis D, drag induced), toxic hepatitis, viral human hepatitis (hepatitis A, hepatitis B, hepatitis C, hepatitis D, hepatitis E), Wilson's disease, granulomatous hepatitis, secondary biliary cirrhosis, hepatic encephalopathy, portal hypertension, varices, hepatic encephalopathy, primary biliary cirrhosis, primary sclerosing cholangitis, hepatocellular adenoma, hemangiomas, bile stones, liver failure (hepatic encephalopathy, acute liver failure), and liver neoplasms (angiomyolipoma, calcified liver metastases, cystic liver metastases, epithelial tumors, fibrolamellar hepatocarcinoma, focal nodular hypeφlasia, hepatic adenoma, hepatobiliary cystadenoma, hepatoblastoma, hepatocellular carcinoma, hepatoma, liver cancer, liver hemangioendothelioma, mesenchymal hamartoma, mesenchymal tumors of liver, nodular regenerative hypeφlasia, benign liver tumors (Hepatic cysts [Simple cysts, Polycystic liver disease, Hepatobiliary cystadenoma, Choledochal cyst], Mesenchymal tumors [Mesenchymal hamartoma, Infantile hemangioendothelioma, Hemangioma, Peliosis hepatis, Lipomas, Inflammatory pseudotumor, Miscellaneous], Epithelial tumors [Bile duct epithelium (Bile duct hamartoma, Bile duct adenoma), Hepatocyte (Adenoma, Focal nodular hypeφlasia, Nodular regenerative hypeφlasia)], malignant liver tumors [hepatocellular, hepatoblastoma, hepatocellular carcinoma, cholangiocellular, cholangiocarcinoma, cystadenocarcinoma, tumors of blood vessels, angiosarcoma, Kaφosi's sarcoma, hemangioendothelioma, other tumors, embryonal sarcoma, fibrosarcoma, leiomyosarcoma, rhabdomyosarcoma, carcinosarcoma, teratoma, carcinoid, squamous carcinoma, primary lymphoma]), peliosis hepatis, erythrohepatic poφhyria, hepatic poφhyria (acute intermittent poφhyria, poφhyria cutanea tarda), Zellweger syndrome). [832] Pancreatic diseases and/or disorders include acute pancreatitis, chronic pancreatitis (acute necrotizing pancreatitis, alcoholic pancreatitis), neoplasms (adenocarcinoma of the pancreas, cystadenocarcinoma, insulinoma, gastrinoma, and glucagonoma, cystic neoplasms, islet-cell tumors, pancreoblastoma), and other pancreatic diseases (e.g., cystic fibrosis, cyst (pancreatic pseudocyst, pancreatic fistula, insufficiency)). [833] Gallbladder diseases include gallstones (cholelithiasis and choledocholithiasis), postcholecystectomy syndrome, diverticulosis of the gallbladder, acute cholecystitis, chronic cholecystitis, bile duct tumors, and mucocele. [834] Diseases and/or disorders ofthe large intestine include antibiotic-associated colitis, diverticulitis, ulcerative colitis, acquired megacolon, abscesses, fungal and bacterial infections, anorectal disorders (e.g., fissures, hemorrhoids), colonic diseases (colitis, colonic neoplasms [colon cancer, adenomatous colon polyps (e.g., villous adenoma), colon carcinoma, colorectal cancer], colonic diverticulitis, colonic diverticulosis, megacolon [Hirschsprang disease, toxic megacolon]; sigmoid diseases [proctocolitis, sigmoin neoplasms]), constipation, Crohn's disease, diarrhea (infantile diarrhea, dysentery), duodenal diseases (duodenal neoplasms, duodenal obstruction, duodenal ulcer, duodenitis), enteritis (enterocolitis), HIN enteropathy, ileal diseases (ileal neoplasms, ileitis), immunoproliferative small intestinal disease, inflammatory bowel disease (ulcerative colitis, Crohn's disease), intestinal atresia, parasitic diseases (anisakiasis, balantidiasis, blastocystis infections, cryptosporidiosis, dientamoebiasis, amebic dysentery, giardiasis), intestinal fistula (rectal fistula), intestinal neoplasms (cecal neoplasms, colonic neoplasms, duodenal neoplasms, ileal neoplasms, intestinal polyps, jejunal neoplasms, rectal neoplasms), intestinal obstruction (afferent loop syndrome, duodenal obstruction, impacted feces, intestinal pseudo-obstruction [cecal volvulus], intussusception), intestinal perforation, intestinal polyps (colonic polyps, gardner syndrome, peutz-jeghers syndrome), jejunal diseases (jejunal neoplasms), malabsoφtion syndromes (blind loop syndrome, celiac disease, lactose intolerance, short bowl syndrome, tropical sprue, whipple's disease), mesenteric vascular occlusion, pneumatosis cystoides intestinalis, protein-losing enteropathies (intestinal lymphagiectasis), rectal diseases (anus diseases, fecal incontinence, hemorrhoids, proctitis, rectal fistula, rectal prolapse, rectocele), peptic ulcer (duodenal ulcer, peptic esophagitis, hemorrhage, perforation, stomach ulcer, ZoUinger-EUison syndrome), postgasfrectomy syndromes (dumping syndrome), stomach diseases (e.g., achlorhydria, duodenogastric reflux (bile reflux), gastric antral vascular ectasia, gastric fistula, gastric outlet obstruction, gastritis (atrophic or hypertrophic), gastroparesis, stomach dilatation, stomach diverticulum, stomach neoplasms (gastric cancer, gastric polyps, gastric adenocarcinoma, hypeφlastic gastric polyp), stomach rapture, stomach ulcer, stomach volvulus), tuberculosis, visceroptosis, vomiting (e.g., hematemesis, hyperemesis gravidaram, postoperative nausea and vomiting) and hemorrhagic colitis. [835] Further diseases and/or disorders ofthe gastrointestinal system include biliary tract diseases, such as, gastroschisis, fistula (e.g., biliary fistula, esophageal fistula, gastric fistula, intestinal fistula, pancreatic fistula), neoplasms (e.g., biliary tract neoplasms, esophageal neoplasms, such as adenocarcinoma of the esophagus, esophageal squamous cell carcinoma, gastrointestinal neoplasms, pancreatic neoplasms, such as adenocarcinoma of the pancreas, mucinous cystic neoplasm of the pancreas, pancreatic cystic neoplasms, pancreatoblastoma, and peritoneal neoplasms), esophageal disease (e.g., bullous diseases, candidiasis, glycogenic acanthosis, ulceration, barrett esophagus varices, atresia, cyst, diverticulum (e.g., Zenker's diverticulum), fistula (e.g., tracheoesophageal fistula), motility disorders (e.g., CREST syndrome, deglutition disorders, achalasia, spasm, gasfroesophageal reflux), neoplasms, perforation (e.g., Boerhaave syndrome, Mallory-Weiss syndrome), stenosis, esophagitis, diaphragmatic hernia (e.g., hiatal hernia); gastrointestinal diseases, such as, gastroenteritis (e.g., cholera morbus, norwalk virus infection), hemorrhage (e.g., hematemesis, melena, peptic ulcer hemorrhage), stomach neoplasms (gastric cancer, gastric polyps, gastric adenocarcinoma, stomach cancer)), hernia (e.g., congenital diaphragmatic hernia, femoral hernia, inguinal hernia, obturator hernia, umbilical hernia, ventral hernia), and intestinal diseases (e.g., cecal diseases (appendicitis, cecal neoplasms)). Chemotaxis [836] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention may have chemotaxis activity. A chemotaxic molecule attracts or mobilizes cells (e.g., monocytes, fibroblasts, neufrophils, T-cells, mast cells, eosinophils, epithelial and/or endothelial cells) to a particular site in the body, such as inflammation, infection, or site of hypeφroliferation. The mobilized cells can then fight off and/or heal the particular trauma or abnormality. [837] Polynucleotides or polypeptides, as well as agonists or antagonists of the present invention may increase chemotaxic activity of particular cells. These chemotactic molecules can then be used to treat inflammation, infection, hypeφroliferative disorders, or any immune system disorder by increasing the number of cells targeted to a particular location in the body. For example, chemotaxic molecules can be used to treat wounds and other trauma to tissues by attracting immune cells to the injured location. Chemotactic molecules of the present invention can also attract fibroblasts, which can be used to treat wounds. [838] It is also contemplated that polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention may inhibit chemotactic activity. These molecules could also be used to treat disorders. Thus, polynucleotides or polypeptides, as well as agonists or antagonists ofthe present invention could be used as an inhibitor of chemotaxis. Binding Activity [839] A polypeptide of the present invention may be used to screen for molecules that bind to the polypeptide or for molecules to which the polypeptide binds. The binding of the polypeptide and the molecule may activate (agonist), increase, inhibit (antagonist), or decrease activity of the polypeptide or the molecule bound. Examples of such molecules include antibodies, oligonucleotides, proteins (e.g., receptors),or small molecules. [840] Preferably, the molecule is closely related to the natural ligand of the polypeptide, e.g., a fragment of the ligand, or a natural substrate, a ligand, a structural or functional mimetic. (See, Coligan et al., Current Protocols in Immunology l(2):Chapter 5 (1991)). Similarly, the molecule can be closely related to the natural receptor to which the polypeptide binds, or at least, a fragment of the receptor capable of being bound by the polypeptide (e.g., active site). In either case, the molecule can be rationally designed using known techniques. [841] Preferably, the screening for these molecules involves producing appropriate cells which express the polypeptide. Preferred cells include cells from mammals, yeast, Drosophila, or E. coli. Cells expressing the polypeptide (or cell membrane containing the expressed polypeptide) are then preferably contacted with a test compound potentially containing the molecule to observe binding, stimulation, or inhibition of activity of either the polypeptide or the molecule. [842] The assay may simply test binding of a candidate compound to the polypeptide, wherein binding is detected by a label, or in an assay involving competition with a labeled competitor. Further, the assay may test whether the candidate compound results in a signal generated by binding to the polypeptide. [843] Alternatively, the assay can be carried out using cell-free preparations, polypeptide/molecule affixed to a solid support, chemical libraries, or natural product mixtures. The assay may also simply comprise the steps of mixing a candidate compound with a solution containing a polypeptide, measuring polypeptide/molecule activity or binding, and comparing the polypeptide/molecule activity or binding to a standard. [844] Preferably, an ELISA assay can measure polypeptide level or activity in a sample (e.g., biological sample) using a monoclonal or polyclonal antibody. The antibody can measure polypeptide level or activity by either binding, directly or indirectly, to the polypeptide or by competing with the polypeptide for a substrate. [845] Additionally, the receptor to which the polypeptide of the present invention binds can be identified by numerous methods known to those of skill in the art, for example, ligand panning and FACS sorting (Coligan, et al., Current Protocols in Immun., 1(2), Chapter 5, (1991)). For example, expression cloning is employed wherein polyadenylated RNA is prepared from a cell responsive to the polypeptides, for example, ND33T3 cells which are known to contain multiple receptors for the FGF family proteins, and SC-3 cells, and a cDNA library created from this RNA is divided into pools and used to transfect COS cells or other cells that are not responsive to the polypeptides. Transfected cells which are grown on glass slides are exposed to the polypeptide of the present invention, after they have been labeled. The polypeptides can be labeled by a variety of means including iodination or inclusion of a recognition site for a site-specific protein kinase. [846] Following fixation and incubation, the slides are subjected to auto-radiographic analysis. Positive pools are identified and sub-pools are prepared and re-fransfected using an iterative sub-pooling and re-screening process, eventually yielding a single clone that encodes the putative receptor. [847] As an alternative approach for receptor identification, the labeled polypeptides can be photoaffinity linked with cell membrane or extract preparations that express the receptor molecule. Cross-linked material is resolved by PAGE analysis and exposed to X-ray film. The labeled complex containing the receptors of the polypeptides can be excised, resolved into peptide fragments, and subjected to protein microsequencing. The amino acid sequence obtained from microsequencing would be used to design a set of degenerate oligonucleotide probes to screen a cDNA library to identify the genes encoding the putative receptors. [848] Moreover, the techniques of gene-shuffling, motif-shuffling, exon-shuffling, and/or codon-shuffling (collectively referred to as "DNA shuffling") may be employed to modulate the activities of the polypeptide of the present invention thereby effectively generating agonists and antagonists of the polypeptide of the present invention. See generally, U.S. Patent Nos. 5,605,793, 5,811,238, 5,830,721, 5,834,252, and 5,837,458, and Patten, P. A., et al, Curr. Opinion Biotechnol. 8:724-33 (1997); Harayama, S. Trends Biotechnol 16(2):76- 82 (1998); Hansson, L. O., et al, J. Mol. Biol. 287:265-76 (1999); and Lorenzo, M. M. and Blasco, R. Biotechniques 24(2):308-13 (1998); each of these patents and publications are hereby incoφorated by reference). In one embodiment, alteration of polynucleotides and corresponding polypeptides may be achieved by DNA shuffling. DNA shuffling involves the assembly of two or more DNA segments into a desired molecule by homologous, or site- specific, recombination. hi another embodiment, polynucleotides and corresponding polypeptides may be altered by being subjected to random mutagenesis by error-prone PCR, random nucleotide insertion or other methods prior to recombination. In another embodiment, one or more components, motifs, sections, parts, domains, fragments, etc., of the polypeptide of the present invention may be recombined with one or more components, motifs, sections, parts, domains, fragments, etc. of one or more heterologous molecules. In preferred embodiments, the heterologous molecules are family members. In further preferred embodiments, the heterologous molecule is a growth factor such as, for example, platelet-derived growth factor (PDGF), insulin-like growth factor (IGF-I), transforming growth factor (TGF)-alpha, epidermal growth factor (EGF), fibroblast growth factor (FGF), TGF-beta, bone moφhogenetic protein (BMP)-2, BMP-4, BMP-5, BMP-6, BMP-7, activins A and B, decapentaplegic(dpp), 60A, OP-2, dorsalin, growth differentiation factors (GDFs), nodal, MIS, inhibin-alpha, TGF-betal, TGF-beta2, TGF-beta3, TGF-beta5, and glial-derived neurofrophic factor (GDNF). [849] Other preferred fragments are biologically active fragments of the polypeptide of the present invention. Biologically active fragments are those exhibiting activity similar, but not necessarily identical, to an activity of the polypeptide of the present invention. The biological activity of the fragments may include an improved desired activity, or a decreased undesirable activity. [850] Additionally, this invention provides a method of screening compounds to identify those which modulate the action of the polypeptide of the present invention. An example of such an assay comprises combining a mammalian fibroblast cell, a the polypeptide of the present invention, the compound to be screened and 3[H] thymidine under cell culture conditions where the fibroblast cell would normally proliferate. A confrol assay may be performed in the absence of the compound to be screened and compared to the amount of fibroblast proliferation in the presence of the compound to determine if the compound stimulates proliferation by determining the uptake of 3[H] thymidine in each case. The amount of fibroblast cell proliferation is measured by liquid scintillation chromatography which measures the incoφoration of 3[H] thymidine. Both agonist and antagonist compounds maybe identified by this procedure. [851] hi another method, a mammalian cell or membrane preparation expressing a receptor for a polypeptide of the present invention is incubated with a labeled polypeptide of the present invention in the presence of the compound. The ability of the compound to enhance or block this interaction could then be measured. Alternatively, the response of a known second messenger system following interaction of a compound to be screened and the receptor is measured and the ability of the compound to bind to the receptor and elicit a second messenger response is measured to determine if the compound is a potential agonist or antagonist. Such second messenger systems include but are not limited to, cAMP guanylate cyclase, ion channels or phosphoinositide hydrolysis. [852] All of these above assays can be used as diagnostic or prognostic markers. The molecules discovered using these assays can be used to treat disease or to bring about a particular result in a patient (e.g., blood vessel growth) by activating or inhibiting the polypeptide/molecule. Moreover, the assays can discover agents which may inhibit or enhance the production of the polypeptides of the invention from suitably manipulated cells or tissues. [853] Therefore, the invention includes a method of identifying compounds which bind to a polypeptide ofthe invention comprising the steps of: (a) incubating a candidate binding compound with a polypeptide of the present invention; and (b) determining if binding has occurred. Moreover, the invention includes a method of identifying agonists/antagonists comprising the steps of: (a) incubating a candidate compound with a polypeptide of the present invention, (b) assaying a biological activity, and (b) determining if a biological activity ofthe polypeptide has been altered. Targeted Delivery [854] hi another embodiment, the invention provides a method of delivering compositions to targeted cells expressing a receptor for a polypeptide of the invention, or cells expressing a cell bound form of a polypeptide ofthe invention. [855] As discussed herein, polypeptides or antibodies ofthe invention may be associated with heterologous polypeptides, heterologous nucleic acids, toxins, or prodrags via hydrophobic, hydrophilic, ionic and/or covalent interactions. In one embodiment, the invention provides a method for the specific delivery of compositions ofthe invention to cells by administering polypeptides of the invention (including antibodies) that are associated with heterologous polypeptides or nucleic acids. In one example, the invention provides a method for delivering a therapeutic protein into the targeted cell. In another example, the invention provides a method for delivering a single stranded nucleic acid (e.g., antisense or ribozymes) or double stranded nucleic acid (e.g., DNA that can integrate into the cell's genome or replicate episomally and that can be transcribed) into the targeted cell. [856] hi another embodiment, the invention provides a method for the specific destruction of cells (e.g., the destruction of tumor cells) by administering polypeptides of the invention (e.g., polypeptides of the invention or antibodies of the invention) in association with toxins or cytotoxic prodrags. [857] By "toxin" is meant compounds that bind and activate endogenous cytotoxic effector systems, radioisotopes, holotoxins, modified toxins, catalytic subunits of toxins, or any molecules or enzymes not normally present in or on the surface of a cell that under defined conditions cause the cell's death. Toxins that may be used according to the methods of the invention include, but are not limited to, radioisotopes known in the art, compounds such as, for example, antibodies (or complement fixing containing portions thereof) that bind an inherent or induced endogenous cytotoxic effector system, thymidine kinase, endonuclease, RNAse, alpha toxin, ricin, abrin, Pseudomonas exotoxin A, diphtheria toxin, saporin, momordin, gelonin, pokeweed antiviral protein, alpha-sarcin and cholera toxin. By "cytotoxic prodrag" is meant a non-toxic compound that is converted by an enzyme, normally present in the cell, into a cytotoxic compound. Cytotoxic prodrags that may be used according to the methods of the invention include, but are not limited to, glutamyl derivatives of benzoic acid mustard alkylating agent, phosphate derivatives of etoposide or mitomycin C, cytosine arabinoside, daunorabisin, and phenoxyacetamide derivatives of doxorubicin. Drug Screening [858] Further contemplated is the use of the polypeptides ofthe present invention, or the polynucleotides encoding these polypeptides, to screen for molecules which modify the activities of the polypeptides of the present invention. Such a method would include contacting the polypeptide ofthe present invention with a selected compound(s) suspected of having antagonist or agonist activity, and assaying the activity of these polypeptides following binding. [859] This invention is particularly useful for screening therapeutic compounds by using the polypeptides ofthe present invention, or binding fragments thereof, in any of a variety of drug screening techniques. The polypeptide or fragment employed in such a test may be affixed to a solid support, expressed on a cell surface, free in solution, or located intracellularly. One method of drug screening utilizes eukaryotic or prokaryotic host cells which are stably transformed with recombinant nucleic acids expressing the polypeptide or fragment. Drugs are screened against such transformed cells in competitive binding assays. One may measure, for example, the formulation of complexes between the agent being tested and a polypeptide ofthe present invention. [860] Thus, the present invention provides methods of screening for drugs or any other agents which affect activities mediated by the polypeptides of the present invention. These methods comprise contacting such an agent with a polypeptide of the present invention or a fragment thereof and assaying for the presence of a complex between the agent and the polypeptide or a fragment thereof, by methods well known in the art. In such a competitive binding assay, the agents to screen are typically labeled. Following incubation, free agent is separated from that present in bound form, and the amount of free or uncomplexed label is a measure of the ability of a particular agent to bind to the polypeptides of the present invention. [861] Another technique for drag screening provides high throughput screening for compounds having suitable binding affinity to the polypeptides of the present invention, and is described in great detail in European Patent Application 84/03564, published on September 13, 1984, which is incoφorated herein by reference herein. Briefly stated, large numbers of different small peptide test compounds are synthesized on a solid substrate, such as plastic pins or some other surface. The peptide test compounds are reacted with polypeptides of the present invention and washed. Bound polypeptides are then detected by methods well known in the art. Purified polypeptides are coated directly onto plates for use in the aforementioned drag screening techniques, hi addition, non-neutralizing antibodies may be used to capture the peptide and immobilize it on the solid support. [862] This invention also contemplates the use of competitive drug screening assays in which neutralizing antibodies capable of binding polypeptides of the present invention specifically compete with a test compound for binding to the polypeptides or fragments thereof. In this manner, the antibodies are used to detect the presence of any peptide which shares one or more antigenic epitopes with a polypeptide ofthe invention. Antisense And Ribozyme (Antagonists) [863] hi specific embodiments, antagonists according to the present invention are nucleic acids corresponding to the sequences contained in SEQ DD NO:X, or the complementary strand thereof, and/or to cDNA sequences contained in cDNA plasmid:Z identified for example, in Table 1. In one embodiment, antisense sequence is generated internally, by the organism, in another embodiment, the antisense sequence is separately administered (see, for example, O'Connor, J., Neurochem. 56:560 (1991). Oligodeoxynucleotides as Antisense Inhibitors of Gene Expression, CRC Press, Boca Raton, FL (1988). Antisense technology can be used to control gene expression through antisense DNA or RNA, or through triple- helix formation. Antisense techniques are discussed for example, in Okano, J., Neurochem. 56:560 (1991); Oligodeoxynucleotides as Antisense Inhibitors of Gene Expression, CRC Press, Boca Raton, FL (1988). Triple helix formation is discussed in, for instance, Lee et al., Nucleic Acids Research 6:3073 (1979); Cooney et al., Science 241:456 (1988); and Dervan et al., Science 2513300 (1991). The methods are based on binding of a polynucleotide to a complementary DNA or RNA. [864] For example, the use of c-myc and c-myb antisense RNA constructs to inhibit the growth of the non-lymphocytic leukemia cell line HL-60 and other cell lines was previously described. (Wickstrom et al. (1988); Anfossi et al. (1989)). These experiments were performed in vitro by incubating cells with the oligoribonucleotide. A similar procedure for in vivo use is described in WO 91/15580. Briefly, a pair of oligonucleotides for a given antisense RNA is produced as follows: A sequence complimentary to the first 15 bases ofthe open reading frame is flanked by an EcoRI site on the 5 end and a HindDI site on the 3 end. Next, the pair of oligonucleotides is heated at 90°C for one minute and then annealed in 2X ligation buffer (20mM TRIS HCI pH 7.5, lOmM MgC12, 10MM dithiothreitol (DTT) and 0.2 mM ATP) and then ligated to the EcoRl/Hind DI site of the retroviral vector PMV7 (WO 91/15580). [865] For example, the 5' coding portion of a polynucleotide that encodes the polypeptide ofthe present invention may be used to design an antisense RNA oligonucleotide of from about 10 to 40 base pairs in length. A DNA oligonucleotide is designed to be complementary to a region of the gene involved in transcription thereby preventing transcription and the production of the receptor. The antisense RNA oligonucleotide hybridizes to the mRNA in vivo and blocks translation of the mRNA molecule into receptor polypeptide. [866] ■ h one embodiment, the antisense nucleic acid of the invention is produced intracellularly by transcription from an exogenous sequence. For example, a vector or a portion thereof, is transcribed, producing an antisense nucleic acid (RNA) of the invention. Such a vector would contain a sequence encoding the antisense nucleic acid. Such a vector can remain episomal or become chromosomally integrated, as long as it can be transcribed to produce the desired antisense RNA. Such vectors can be constructed by recombinant DNA technology methods standard in the art. Vectors can be plasmid, viral, or others known in the art, used for replication and expression in vertebrate cells. Expression of the sequence encoding the polypeptide of the present invention or fragments thereof, can be by any promoter known in the art to act in vertebrate, preferably human cells. Such promoters can be inducible or constitutive. Such promoters include, but are not limited to, the SV40 early promoter region (Bemoist and Chambon, Nature 29:304-310 (1981), the promoter contained in the 3' long terminal repeat of Rous sarcoma virus (Yamamoto et al., Cell 22:787-797 (1980), the heφes thymidine promoter (Wagner et al., Proc. Natl. Acad. Sci. U.S.A. 78:1441- 1445 (1981), the regulatory sequences of the metallothionein gene (Brinster, et al., Nature 296:39-42 (1982)), etc. [867] The antisense nucleic acids of the invention comprise a sequence complementary to at least a portion of an RNA transcript of a gene of the present invention. However, absolute complementarity, although preferred, is not required. A sequence "complementary to at least a portion of an RNA," referred to herein, means a sequence having sufficient complementarity to be able to hybridize with the RNA, forming a stable duplex; in the case of double stranded antisense nucleic acids, a single strand of the duplex DNA may thus be tested, or triplex formation may be assayed. The ability to hybridize will depend on both the degree of complementarity and the length ofthe antisense nucleic acid. Generally, the larger the hybridizing nucleic acid, the more base mismatches with a RNA it may contain and still form a stable duplex (or triplex as the case may be). One skilled in the art can ascertain a tolerable degree of mismatch by use of standard procedures to determine the melting point of the hybridized complex. [868] Oligonucleotides that are complementary to the 5' end of the message, e.g., the 5' untranslated sequence up to and including the AUG initiation codon, should work most efficiently at inhibiting translation. However, sequences complementary to the 3' untranslated sequences of mRNAs have been shown to be effective at inhibiting translation of mRNAs as well. See generally, Wagner, R., 1994, Nature 372:333-335. Thus, oligonucleotides complementary to either the 5'- or 3'- non- translated, non-coding regions of polynucleotide sequences described herein could be used in an antisense approach to inhibit translation of endogenous mRNA. Oligonucleotides complementary to the 5' untranslated region of the mRNA should include the complement of the AUG start codon. Antisense oligonucleotides complementary to mRNA coding regions are less efficient inhibitors of translation but could be used in accordance with the invention. Whether designed to hybridize to the 5'-, 3'- or coding region of mRNA ofthe present invention, antisense nucleic acids should be at least six nucleotides in length, and are preferably oligonucleotides ranging from 6 to about 50 nucleotides in length, hi specific aspects the oligonucleotide is at least 10 nucleotides, at least 17 nucleotides, at least 25 nucleotides or at least 50 nucleotides. [869] The polynucleotides ofthe invention can be DNA or RNA or chimeric mixtures or derivatives or modified versions thereof, single-stranded or double-stranded. The oligonucleotide can be modified at the base moiety, sugar moiety, or phosphate backbone, for example, to improve stability of the molecule, hybridization, etc. The oligonucleotide may include other appended groups such as peptides (e.g., for targeting host cell receptors in vivo), or agents facilitating transport across the cell membrane (see, e.g., Letsinger et al., 1989, Proc. Natl. Acad. Sci. U.S.A. 86:6553-6556; Lemaitre et al, 1987, Proc. Natl. Acad. Sci. 84:648-652; PCT Publication No. WO88/09810, published December 15, 1988) or the blood- brain barrier (see, e.g., PCT Publication No. WO89/10134, published April 25, 1988), hybridization-triggered cleavage agents. (See, e.g., Krol et al., 1988, BioTechniques 6:958- 976) or intercalating agents. (See, e.g., Zon, 1988, Pharm. Res. 5:539-549). To this end, the oligonucleotide may be conjugated to another molecule, e.g., a peptide, hybridization triggered cross-linking agent, transport agent, hybridization-triggered cleavage agent, etc. [870] The antisense oligonucleotide may comprise at least one modified base moiety which is selected from the group including, but not limited to, 5-fluorouracil, 5-bromouracil, 5-chlorouracil, 5-iodouracil, hypoxanthine, xantine, 4-acetylcytosine, 5-(carboxyhydroxylmethyl) uracil, 5-carboxymethylaminomethyl-2-thiouridine, 5-carboxymethylaminomethyluracil, dihydrouracil, beta-D-galactosylqueosine, inosine, N6-isopentenyladenine, 1-methylguanine, 1-methylinosine, 2,2-dimethylguanine, 2-methyladenine, 2-methylguanine, 3-methylcytosine, 5-methylcytosine, N6-adenine, 7-methylguanine, 5-methylaminomethyluracil, 5-methoxyaminomethyl-2-thiouracil, beta- D-mannosylqueosine, 5'-methoxycarboxymethyluracil, 5-methoxyuracil, 2-methylthio-N6- isopentenyladenine, uracil-5-oxyacetic acid (v), wybutoxosine, pseudouracil, queosine, 2-thiocytosine, 5-methyl-2-thiouracil, 2-thiouracil, 4-thiouracil, 5-methyluracil, uracil- 5-oxyacetic acid methylester, uracil-5-oxyacetic acid (v), 5-methyl-2-thiouracil, 3-(3-amino- 3-N-2-carboxypropyl) uracil, (acp3)w, and 2,6-diaminopurine. [871] The antisense oligonucleotide may also comprise at least one modified sugar moiety selected from the group including, but not limited to, arabinose, 2-fluoroarabinose, xylulose, and hexose. [872] hi yet another embodiment, the antisense oligonucleotide comprises at least one modified phosphate backbone selected from the group including, but not limited to, a phosphorothioate, a phosphorodithioate, a phosphoramidothioate, a phosphoramidate, a phosphordiamidate, a methylphosphonate, an alkyl phosphotriester, and a formacetal or analog thereof. [873] In yet another embodiment, the antisense oligonucleotide is an a-anomeric oligonucleotide. An a-anomeric oligonucleotide forms specific double-stranded hybrids with complementary RNA in which, contrary to the usual b-units, the strands ran parallel to each other (Gautier et al., 1987, Nucl. Acids Res. 15:6625-6641). The oligonucleotide is a 2'-0- methylribonucleotide (ϊnoue et al., 1987, Nucl. Acids Res. 15:6131-6148), or a chimeric RNA-DNA analogue (hioue et al., 1987, FEBS Lett. 215:327-330). [874] Polynucleotides of the invention may be synthesized by standard methods known in the art, e.g. by use of an automated DNA synthesizer (such as are commercially available from Biosearch, Applied Biosystems, etc.). As examples, phosphorothioate oligonucleotides may be synthesized by the method of Stein et al. (1988, Nucl. Acids Res. 16:3209), methylphosphonate oligonucleotides can be prepared by use of controlled pore glass polymer supports (Sarin et al., 1988, Proc. Natl. Acad. Sci. U.S.A. 85:7448-7451), etc. [875] While antisense nucleotides complementary to the coding region sequence could be used, those complementary to the transcribed untranslated region are most preferred. [876] Potential antagonists according to the invention also include catalytic RNA, or a ribozyme (See, e.g., PCT Intemational Publication WO 90/11364, published October 4, 1990; Sarver et al, Science 2473222-1225 (1990). While ribozymes that cleave mRNA at site specific recognition sequences can be used to destroy mRNAs, the use of hammerhead ribozymes is preferred. Hammerhead ribozymes cleave mRNAs at locations dictated by flanking regions that form complementary base pairs with the target mRNA. The sole requirement is that the target mRNA have the following sequence of two bases: 5'-UG-3'. The construction and production of hammerhead ribozymes is well known in the art and is described more fully in Haseloff and Gerlach, Nature 334:585-591 (1988). There are numerous potential hammerhead ribozyme cleavage sites within the nucleotide sequence of SEQ DD NO:X. Preferably, the ribozyme is engineered so that the cleavage recognition site is located near the 5' end of the mRNA; i.e., to increase efficiency and minimize the intracellular accumulation of non-functional mRNA transcripts. [877] As in the antisense approach, the ribozymes of the invention can be composed of modified oligonucleotides (e.g., for improved stability, targeting, etc.) and should be delivered to cells which express in vivo. DNA constructs encoding the ribozyme may be introduced into the cell in the same manner as described above for the introduction of antisense encoding DNA. A preferred method of delivery involves using a DNA construct "encoding" the ribozyme under the control of a strong constitutive promoter, such as, for example, pol DI or pol II promoter, so that transfected cells will produce sufficient quantities of the ribozyme to destroy endogenous messages and inhibit translation. Since ribozymes unlike antisense molecules, are catalytic, a lower intracellular concentration is required for efficiency. [878] Antagonist/agonist compounds may be employed to inhibit the cell growth and proliferation effects of the polypeptides of the present invention on neoplastic cells and tissues, i.e. stimulation of angiogenesis of tumors, and, therefore, retard or prevent abnormal cellular growth and proliferation, for example, in tumor formation or growth. [879] The antagonist/agonist may also be employed to prevent hyper-vascular diseases, and prevent the proliferation of epithelial lens cells after extracapsular cataract surgery. Prevention of the mitogenic activity of the polypeptides of the present invention may also be desirous in cases such as restenosis after balloon angioplasty. [880] The antagonist/agonist may also be employed to prevent the growth of scar tissue during wound healing. [881] The antagonist/agonist may also be employed to treat the diseases described herein. [882] Thus, the invention provides a method of treating disorders or diseases, including but not limited to the disorders or diseases listed throughout this application, associated with overexpression of a polynucleotide of the present invention by administering to a patient (a) an antisense molecule directed to the polynucleotide of the present invention, and/or (b) a ribozyme directed to the polynucleotide ofthe present invention. Binding Peptides and Other Molecules [883] The invention also encompasses screening methods for identifying polypeptides and nonpolypeptides that bind polypeptides of the invention, and the binding molecules identified thereby. These binding molecules are useful, for example, as agomsts and antagonists of the polypeptides of the invention. Such agonists and antagonists can be used, in accordance with the invention, in the therapeutic embodiments described in detail, below. [884] This method comprises the steps of: 1. contacting polypeptides ofthe invention with a plurality of molecules; and 2. identifying a molecule that binds the polypeptides ofthe invention. [885] The step of contacting the polypeptides of the invention with the plurality of molecules may be effected in a number of ways. For example, one may contemplate immobilizing the polypeptides on a solid support and bringing a solution of the plurality of molecules in contact with the immobilized polypeptides. Such a procedure would be akin to an affinity chromatographic process, with the affinity matrix being comprised of the immobilized polypeptides of the invention. The molecules having a selective affinity for the polypeptides can then be purified by affinity selection. The nature of the solid support, process for attachment of the polypeptides to the solid support, solvent, and conditions of the affinity isolation or selection are largely conventional and well known to those of ordinary skill in the art. [886] Alternatively, one may also separate a plurality of polypeptides into substantially separate fractions comprising a subset of or individual polypeptides. For instance, one can separate the plurality of polypeptides by gel electrophoresis, column chromatography, or like method known to those of ordinary skill for the separation of polypeptides. The individual polypeptides can also be produced by a transformed host cell in such a way as to be expressed on or about its outer surface (e.g., a recombinant phage). Individual isolates can then be "probed" by the polypeptides of the invention, optionally in the presence of an inducer should one be required for expression, to determine if any selective affinity interaction takes place between the polypeptides and the individual clone. Prior to contacting the polypeptides with each fraction comprising individual polypeptides, the polypeptides could first be transferred to a solid support for additional convenience. Such a solid support may simply be a piece of filter membrane, such as one made of nitrocellulose or nylon, hi this manner, positive clones could be identified from a collection of transformed host cells of an expression library, which harbor a DNA construct encoding a polypeptide having a selective affinity for polypeptides of the invention. Furthermore, the amino acid sequence of the polypeptide having a selective affinity for the polypeptides of the invention can be determined directly by conventional means or the coding sequence of the DNA encoding the polypeptide can frequently be determined more conveniently. The primary sequence can then be deduced from the corresponding DNA sequence. If the amino acid sequence is to be determined from the polypeptide itself, one may use microsequencing techniques. The sequencing technique may include mass spectroscopy. [887] hi certain situations, it may be desirable to wash away any unbound polypeptides from a mixture of the polypeptides of the invention and the plurality of polypeptides prior to attempting to determine or to detect the presence of a selective affinity interaction. Such a wash step may be particularly desirable when the polypeptides of the invention or the plurality of polypeptides are bound to a solid support. [888] The plurality of molecules provided according to this method may be provided by way of diversity libraries, such as random or combinatorial peptide or nonpeptide libraries which can be screened for molecules that specifically bind polypeptides of the invention. Many libraries are known in the art that can be used, e.g., chemically synthesized libraries, recombinant (e.g., phage display libraries), and in vitro translation-based libraries. Examples of chemically synthesized libraries are described in Fodor et al., 1991, Science 251:767-773; Houghten et al., 1991, Nature 354:84-86; Lam et al., 1991, Nature 354:82-84; Medynski, 1994, Bio/Technology 12:709-710;Gallop et al, 1994, J. Medicinal Chemistry 37(9)3233- 1251; Ohlmeyer et al., 1993, Proc. Natl. Acad. Sci. USA 90:10922-10926; Erb et al., 1994, Proc. Natl. Acad. Sci. USA 9131422-11426; Houghten et al., 1992, Biotechniques 13:412; Jayawickreme et al., 1994, Proc. Natl. Acad. Sci. USA 913614-1618; Salmon et al., 1993, Proc. Natl. Acad. Sci. USA 90:11708-11712; PCT Publication No. WO 93/20242; and Brenner and Lemer, 1992, Proc. Natl. Acad. Sci. USA 89:5381-5383. [889] Examples of phage display libraries are described in Scott and Smith, 1990, Science 249:386-390; Devlin et al., 1990, Science, 249:404-406; Christian, R. B., et al., 1992, J. Mol. Biol. 227:711-718); Lenstra, 1992, J. Immunol. Meth. 152349-157; Kay et al., 1993, Gene 128:59-65; and PCT Publication No. WO 94/18318 dated Aug. 18, 1994. [890] In vitro translation-based libraries include but are not limited to those described in PCT Publication No. WO 91/05058 dated Apr. 18, 1991; and Mattheakis et al., 1994, Proc. Natl. Acad. Sci. USA 91:9022-9026. [891] By way of examples of nonpeptide libraries, a benzodiazepine library (see e.g., Bunin et al., 1994, Proc. Natl. Acad. Sci. USA 91 :4708-4712) can be adapted for use. Peptoid libraries (Simon et al., 1992, Proc. Natl. Acad. Sci. USA 89:9367-9371) can also be used. Another example of a library that can be used, in which the amide functionalities in peptides have been permethylated to generate a chemically transformed combinatorial library, is described by Ostresh et al. (1994, Proc. Natl. Acad. Sci. USA 91:11138-11142). [892] The variety of non-peptide libraries that are useful in the present invention is great. For example, Ecker and Crooke, 1995, Bio/Technology 13:351-360 list benzodiazepines, hydantoins, piperazinediones, biphenyls, sugar analogs, beta-mercaptoketones, arylacetic acids, acylpiperidines, benzopyrans, cubanes, xanthines, aminimides, and oxazolones as among the chemical species that form the basis of various libraries. [893] Non-peptide libraries can be classified broadly into two types: decorated monomers and oligomers. Decorated monomer libraries employ a relatively simple scaffold structure upon which a variety functional groups is added. Often the scaffold will be a molecule with a known useful pharmacological activity. For example, the scaffold might be the benzodiazepine structure. [894] Non-peptide oligomer libraries utilize a large number of monomers that are assembled together in ways that create new shapes that depend on the order ofthe monomers. Among the monomer units that have been used are carbamates, pyrrolinones, and moφholinos. Peptoids, peptide-like oligomers in which the side chain is attached to the alpha amino group rather than the alpha carbon, form the basis of another version of non-peptide oligomer libraries. The first non-peptide oligomer libraries utilized a single type of monomer and thus contained a repeating backbone. Recent libraries have utilized more than one monomer, giving the libraries added flexibility. [895] Screening the libraries can be accomplished by any of a variety of commonly known methods. See, e.g., the following references, which disclose screening of peptide libraries: Parmley and Smith, 1989, Adv. Exp. Med. Biol. 251:215-218; Scott and Smith, 1990, Science 249:386-390; Fowlkes et al., 1992; BioTechniques 13:422-427; Oldenburg et al, 1992, Proc. Natl. Acad. Sci. USA 89:5393-5397; Yu et al, 1994, Cell 76:933-945; Staudt et al, 1988, Science 241:577-580; Bock et al, 1992, Nature 355:564-566; Tuerk et al, 1992, Proc. Natl. Acad. Sci. USA 89:6988-6992; Ellington et al, 1992, Nature 355:850-852; U.S. Pat. No. 5,096,815, U.S. Pat. No. 5,223,409, and U.S. Pat. No. 5,198,346, all to Ladner et al.; Rebar and Pabo, 1993, Science 263:671-673; and CT Publication No. WO 94/18318. [896] In a specific embodiment, screening to identify a molecule that binds polypeptides of the invention can be carried out by contacting the library members with polypeptides of the invention immobilized on a solid phase and harvesting those library members that bind to the polypeptides of the invention. Examples of such screening methods, termed "panning" techniques are described by way of example in Parmley and Smith, 1988, Gene 73:305-318; Fowlkes et al, 1992, BioTechniques 13:422-427; PCT Publication No. WO 94/18318; and in references cited herein. [897] In another embodiment, the two-hybrid system for selecting interacting proteins in yeast (Fields and Song, 1989, Nature 340:245-246; Chien et al, 1991, Proc. Natl. Acad. Sci. USA 88:9578-9582) can be used to identify molecules that specifically bind to polypeptides ofthe invention. [898] Where the binding molecule is a polypeptide, the polypeptide can be conveniently selected from any peptide library, including random peptide libraries, combinatorial peptide libraries, or biased peptide libraries. The term "biased" is used herein to mean that the method of generating the library is manipulated so as to restrict one or more parameters that govern the diversity ofthe resulting collection of molecules, in this case peptides. [899] Thus, a truly random peptide library would generate a collection of peptides in which the probability of finding a particular amino acid at a given position of the peptide is the same for all 20 amino acids. A bias can be introduced into the library, however, by specifying, for example, that a lysine occur every fifth amino acid or that positions 4, 8, and 9 of a decapeptide library be fixed to include only arginine. Clearly, many types of biases can be contemplated, and the present invention is not restricted to any particular bias. Furthermore, the present invention contemplates specific types of peptide libraries, such as phage displayed peptide libraries and those that utilize a DNA construct comprising a lambda phage vector with a DNA insert. [900] As mentioned above, in the case of a binding molecule that is a polypeptide, the polypeptide may have about 6 to less than about 60 amino acid residues, preferably about 6 to about 10 amino acid residues, and most preferably, about 6 to about 22 amino acids. In another embodiment, a binding polypeptide has in the range of 15-100 amino acids, or 20-50 amino acids. [901] The selected binding polypeptide can be obtained by chemical synthesis or recombinant expression. Other Activities [902] A polypeptide, polynucleotide, agonist, or antagonist of the present invention, as a result of the ability to stimulate vascular endothelial cell growth, may be employed in treatment for stimulating re-vascularization of ischemic tissues due to various disease conditions such as thrombosis, arteriosclerosis, and other cardiovascular conditions. The polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be employed to stimulate angiogenesis and limb regeneration, as discussed above. [903] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be employed for treating wounds due to injuries, bums, post-operative tissue repair, and ulcers since they are mitogenic to various cells of different origins, such as fibroblast cells and skeletal muscle cells, and therefore, facilitate the repair or replacement of damaged or diseased tissue. [904] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be employed stimulate neuronal growth and to treat and prevent neuronal damage which occurs in certain neuronal disorders or neuro-degenerative conditions such as Alzheimer's disease, Parkinson's disease, and ADDS-related complex. A polypeptide, polynucleotide, agonist, or antagonist of the present invention may have the ability to stimulate chondrocyte growth, therefore, they may be employed to enhance bone and periodontal regeneration and aid in tissue transplants or bone grafts. [905] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may be also be employed to prevent skin aging due to sunburn by stimulating keratinocyte growth. [906] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be employed for preventing hair loss, since FGF family members activate hair-forming cells and promotes melanocyte growth. Along the same lines, a polypeptide, polynucleotide, agonist, or antagonist of the present invention may be employed to stimulate growth and differentiation of hematopoietic cells and bone marrow cells when used in combination with other cytokines. [907] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be employed to maintain organs before transplantation or for supporting cell culture of primary tissues. A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be employed for inducing tissue of mesodermal origin to differentiate in early embryos. [908] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also increase or decrease the differentiation or proliferation of embryonic stem cells, besides, as discussed above, hematopoietic lineage. [909] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be used to modulate mammalian characteristics, such as body height, weight, hair color, eye color, skin, percentage of adipose tissue, pigmentation, size, and shape (e.g, cosmetic surgery). Similarly, a polypeptide, polynucleotide, agonist, or antagonist of the present invention may be used to modulate mammalian metabolism affecting catabolism, anabolism, processing, utilization, and storage of energy. [910] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may be used to treat weight disorders, including but not limited to, obesity, cachexia, wasting disease, anorexia, and bulimia. [911] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may be used to change a mammal's mental state or physical state by influencing biorhythms, caricadic rhythms, depression (including depressive disorders), tendency for violence, tolerance for pain, reproductive capabilities (preferably by Activin or hihibin-like activity), hormonal or endocrine levels, appetite, libido, memory, stress, or other cognitive qualities. [912] A polypeptide, polynucleotide, agonist, or antagonist of the present invention may also be used as a food additive or preservative, such as to increase or decrease storage capabilities, fat content, lipid, protein, carbohydrate, vitamins, minerals, cofactors or other nutritional components. [913] The above-recited applications have uses in a wide variety of hosts. Such hosts include, but are not limited to, human, murine, rabbit, goat, guinea pig, camel, horse, mouse, rat, hamster, pig, micro-pig, chicken, goat, cow, sheep, dog, cat, non-human primate, and human. In specific embodiments, the host is a mouse, rabbit, goat, guinea pig, chicken, rat, hamster, pig, sheep, dog or cat. hi preferred embodiments, the host is a mammal, hi most preferred embodiments, the host is a human. Other Preferred Embodiments [914] Other preferred embodiments of the claimed invention include an isolated nucleic acid molecule comprising a nucleotide sequence wliich is at least 95% identical to a sequence of at least about 50 contiguous nucleotides in the nucleotide sequence of SEQ DD NO:X or the complementary strand thereto, and/or cDNA plasmidN. [915] Also preferred is a nucleic acid molecule wherein said sequence of contiguous nucleotides is included in the nucleotide sequence of SEQ DD NO:X in the range of positions identified for SEQ DD NO:X in Table 1. [916] Also preferred is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to a sequence of at least about 150 contiguous nucleotides in the nucleotide sequence of SEQ ED NO:X or the complementary strand thereto, and/or cDNA plasmidN. [917] Further preferred is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95%> identical to a sequence of at least about 500 contiguous nucleotides in the nucleotide sequence of SEQ ED ΝO:X or the complementary strand thereto, and/or cDNA plasmidN. [918] A further preferred embodiment is a nucleic acid molecule comprising a nucleotide sequence which is at least 95%> identical to the nucleotide sequence of SEQ DD ΝO:X in the range of positions identified for SEQ ED NO:X in Table 1. [919] A further preferred embodiment is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to the complete nucleotide sequence of SEQ DD NO:X or the complementary strand thereto, and/or cDNA plasmid:V. [920] Also preferred is an isolated nucleic acid molecule which hybridizes under stringent hybridization conditions to a nucleic acid molecule comprising a nucleotide sequence of SEQ DD NO:X or the complementary strand thereto and/or cDNA plasmidN, wherein said nucleic acid molecule which hybridizes does not hybridize under stringent hybridization conditions to a nucleic acid molecule having a nucleotide sequence consisting of only A residues or of only T residues. [921] Also preferred is a composition of matter comprising a DΝA molecule which comprises cDΝA plasmidN. [922] Also preferred is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to a sequence of at least 50 contiguous nucleotides in the nucleotide sequence of cDΝA plasmidN. [923] Also preferred is an isolated nucleic acid molecule, wherein said sequence of at least 50 contiguous nucleotides is included in the nucleotide sequence of an open reading frame sequence encoded by cDΝA plasmidN. [924] Also preferred is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to sequence of at least 150 contiguous nucleotides in the nucleotide sequence encoded by cDNA plasmidN. [925] A further preferred embodiment is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to sequence of at least 500 contiguous nucleotides in the nucleotide sequence encoded by cDΝA plasmidN. [926] A further preferred embodiment is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to the complete nucleotide sequence encoded by cDΝA plasmidN. [927] A further prefened embodiment is a method for detecting in a biological sample a nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to a sequence of at least 50 contiguous nucleotides in a sequence selected from the group consisting of: a nucleotide sequence of SEQ DD ΝO:X or the complementary strand thereto and a nucleotide sequence encoded by cDNA plasmidN; which method comprises a step of comparing a nucleotide sequence of at least one nucleic acid molecule in said sample with a sequence selected from said group and determining whether the sequence of said nucleic acid molecule in said sample is at least 95% identical to said selected sequence. [928] Also preferred is the above method wherein said step of comparing sequences comprises deteπnining the extent of nucleic acid hybridization between nucleic acid molecules in said sample and a nucleic acid molecule comprising said sequence selected from said group. Similarly, also preferred is the above method wherein said step of comparing sequences is performed by comparing the nucleotide sequence determined from a nucleic acid molecule in said sample with said sequence selected from said group. The nucleic acid molecules can comprise DΝA molecules or RΝA molecules. [929] A further preferred embodiment is a method for identifying the species, tissue or cell type of a biological sample which method comprises a step of detecting nucleic acid molecules in said sample, if any, comprising a nucleotide sequence that is at least 95% identical to a sequence of at least 50 contiguous nucleotides in a sequence selected from the group consisting of: a nucleotide sequence of SEQ DD ΝO:X or the complementary strand thereto and a nucleotide sequence encoded by cDNA plasmidN. [930] The method for identifying the species, tissue or cell type of a biological sample can comprise a step of detecting nucleic acid molecules comprising a nucleotide sequence in a panel of at least two nucleotide sequences, wherein at least one sequence in said panel is at least 95% identical to a sequence of at least 50 contiguous nucleotides in a sequence selected from said group. [931] Also preferred is a method for diagnosing in a subject a pathological condition associated with abnormal structure or expression of a nucleotide sequence of SEQ DD NO:X or the complementary strand thereto or cDNA plasmidN which encodes a protein, wherein the method comprises a step of detecting in a biological sample obtained from said subject nucleic acid molecules, if any, comprising a nucleotide sequence that is at least 95% identical to a sequence of at least 50 contiguous nucleotides in a sequence selected from the group consisting of: a nucleotide sequence of SEQ DD ΝO:X or the complementary strand thereto and a nucleotide sequence of cDNA plasmidN. [932] The method for diagnosing a pathological condition can comprise a step of detecting nucleic acid molecules comprising a nucleotide sequence in a panel of at least two nucleotide sequences, wherein at least one sequence in said panel is at least 95% identical to a sequence of at least 50 contiguous nucleotides in a sequence selected from said group. [933] Also preferred is a composition of matter comprising isolated nucleic acid molecules wherein the nucleotide sequences of said nucleic acid molecules comprise a panel of at least two nucleotide sequences, wherein at least one sequence in said panel is at least 95%ι identical to a sequence of at least 50 contiguous nucleotides in a sequence selected from the group consisting of: a nucleotide sequence of SEQ DD ΝO:X or the complementary strand thereto and a nucleotide sequence encoded by cDNA plasmidN. The nucleic acid molecules can comprise DΝA molecules or RΝA molecules. [934] Also preferred is an isolated polypeptide comprising an amino acid sequence at least 90% identical to a sequence of at least about 10 contiguous amino acids in the polypeptide sequence of SEQ DD ΝO:Y; a polypeptide encoded by SEQ ED NO:X or the complementary strand thereto and/or a polypeptide encoded by cDNA plasmidN. [935] Also preferred is an isolated polypeptide comprising an amino acid sequence at least 95% identical to a sequence of at least about 30 contiguous amino acids in the amino acid sequence of SEQ ED ΝO:Y; a polypeptide encoded by SEQ ED NO:X or the complementary strand thereto and/or a polypeptide encoded by cDNA plasmidN. [936] Further preferred is an isolated polypeptide comprising an amino acid sequence at least 95% identical to a sequence of at least about 100 contiguous amino acids in the amino acid sequence of SEQ ED NO:Y; a polypeptide encoded by SEQ ED NO:X or the complementary strand thereto and/or a polypeptide encoded by cDNA plasmidN. [937] Further preferred is an isolated polypeptide comprising an amino acid sequence at least 95% identical to the complete amino acid sequence of SEQ DD ΝO:Y; a polypeptide encoded by SEQ DD NO:X or the complementary strand thereto and/or a polypeptide encoded by cDNA plasmidN. [938] Further preferred is an isolated polypeptide comprising an amino acid sequence at least 90% identical to a sequence of at least about 10 contiguous amino acids in the complete amino acid sequence of a polypeptide encoded by cDΝA plasmidN. [939] Also preferred is a polypeptide wherein said sequence of contiguous amino acids is included in the amino acid sequence of a portion of said polypeptide encoded by cDΝA plasmidN; a polypeptide encoded by SEQ ED ΝO:X or the complementary strand thereto and/or the polypeptide sequence of SEQ ED NO:Y. [940] Also preferred is an isolated polypeptide comprising an amino acid sequence at least 95% identical to a sequence of at least about 30 contiguous amino acids in the amino acid sequence of a polypeptide encoded by cDNA plasmidN. , [941] Also preferred is an isolated polypeptide comprising an amino acid sequence at least 95% identical to a sequence of at least about 100 contiguous amino acids in the amino acid sequence of a polypeptide encoded by cDΝA plasmidN. [942] Also preferred is an isolated polypeptide comprising an amino acid sequence at least 95% identical to the amino acid sequence of a polypeptide encoded by cDΝA plasmidN. [943] Further preferred is an isolated antibody which binds specifically to a polypeptide comprising an amino acid sequence that is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the group consisting of: a polypeptide sequence of SEQ DD ΝO:Y; a polypeptide encoded by SEQ DD NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. [944] Further preferred is a method for detecting in a biological sample a polypeptide comprising an amino acid sequence which is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the group consisting of: a polypeptide sequence of SEQ DD ΝO:Y; a polypeptide encoded by SEQ ED NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmid:V; which method comprises a step of comparing an amino acid sequence of at least one polypeptide molecule in said sample with a sequence selected from said group and determining whether the sequence of said polypeptide molecule in said sample is at least 90% identical to said sequence of at least 10 contiguous amino acids. [945] Also preferred is the above method wherein said step of comparing an amino acid sequence of at least one polypeptide molecule in said sample with a sequence selected from said group comprises determining the extent of specific binding of polypeptides in said sample to an antibody which binds specifically to a polypeptide comprising an amino acid sequence that is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the group consisting of: a polypeptide sequence of SEQ DD NO:Y; a polypeptide encoded by SEQ ED NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. [946] Also preferred is the above method wherein said step of comparing sequences is performed by comparing the amino acid sequence determined from a polypeptide molecule in said sample with said sequence selected from said group. [947] Also preferred is a method for identifying the species, tissue or cell type of a biological sample which method comprises a step of detecting polypeptide molecules in said sample, if any, comprising an amino acid sequence that is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the group consisting of: polypeptide sequence of SEQ ED ΝO:Y; a polypeptide encoded by SEQ DD NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. [948] Also preferred is the above method for identifying the species, tissue or cell type of a biological sample, which method comprises a step of detecting polypeptide molecules comprising an amino acid sequence in a panel of at least two amino acid sequences, wherein at least one sequence in said panel is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the above group. [949] Also preferred is a method for diagnosing in a subject a pathological condition associated with abnormal structure or expression of a nucleic acid sequence identified in Table 1 encoding a polypeptide, wliich method comprises a step of detecting in a biological sample obtained from said subject polypeptide molecules comprising an amino acid sequence in a panel of at least two amino acid sequences, wherein at least one sequence in said panel is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the group consisting of: polypeptide sequence of SEQ DD NO:Y; a polypeptide encoded by SEQ DD NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. [950] In any of these methods, the step of detecting said polypeptide molecules includes using an antibody. [951] Also preferred is an isolated nucleic acid molecule comprising a nucleotide sequence which is at least 95% identical to a nucleotide sequence encoding a polypeptide wherein said polypeptide comprises an amino acid sequence that is at least 90% identical to a sequence of at least 10 contiguous amino acids in a sequence selected from the group consisting of: polypeptide sequence of SEQ ED ΝO:Y; a polypeptide encoded by SEQ DD NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. [952] Also preferred is an isolated nucleic acid molecule, wherein said nucleotide sequence encoding a polypeptide has been optimized for expression of said polypeptide in a prokaryotic host. [953] Also preferred is an isolated nucleic acid molecule, wherein said polypeptide comprises an amino acid sequence selected from the group consisting of: polypeptide sequence of SEQ DD ΝO:Y; a polypeptide encoded by SEQ DD NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. [954] Further preferred is a method of making a recombinant vector comprising inserting any of the above isolated nucleic acid molecule into a vector. Also preferred is the recombinant vector produced by this method. Also preferred is a method of making a recombinant host cell comprising introducing the vector into a host cell, as well as the recombinant host cell produced by this method. [955] Also preferred is a method of making an isolated polypeptide comprising culturing this recombinant host cell under conditions such that said polypeptide is expressed and recovering said polypeptide. Also preferred is this method of making an isolated polypeptide, wherein said recombinant host cell is a eukaryotic cell and said polypeptide is a human protein comprising an amino acid sequence selected from the group consisting of: polypeptide sequence of SEQ DD ΝO:Y; a polypeptide encoded by SEQ ED NO:X or the complementary strand thereto and a polypeptide encoded by cDNA plasmidN. The isolated polypeptide produced by this method is also preferred. [956] Also preferred is a method of treatment of an individual in need of an increased level of a protein activity, which method comprises administering to such an individual a Therapeutic comprising an amount of an isolated polypeptide, polynucleotide, immunogenic fragment or analogue thereof, binding agent, antibody, or antigen binding fragment of the claimed invention effective to increase the level of said protein activity in said individual. [957] Also preferred is a method of treatment of an individual in need of a decreased level of a protein activity, which method comprised administering to such an individual a Therapeutic comprising an amount of an isolated polypeptide, polynucleotide, immunogenic fragment or analogue thereof, binding agent, antibody, or antigen binding fragment of the claimed invention effective to decrease the level of said protein activity in said individual. [958] hi specific embodiments ofthe invention, for each "Contig ED" listed in the fourth column of Table 2, preferably excluded are one or more polynucleotides comprising, or alternatively consisting of, a nucleotide sequence referenced in the fifth column of Table 2 and described by the general formula of a-b, whereas a and b are uniquely determined for the corresponding SEQ ED NO:X refeπed to in column 3 of Table 2. Further specific embodiments are directed to polynucleotide sequences excluding one, two, three, four, or more ofthe specific polynucleotide sequences referred to in the fifth column of Table 2. [959] Preferably excluded from the present invention are one or more polynucleotides comprising a nucleotide sequence described by the general formula of c - d, where both c and d correspond to the positions of nucleotide residues shown in SEQ ED NO:X, and where d is greater than or equal to c + 14. [960] hi no way is this listing meant to encompass all of the sequences which may be excluded by the general formula, it is just a representative example. All references available through these accessions are hereby incoφorated by reference in their entirety. TABLE 2 D59619, D80210, D80391, AW973474, D80240, AV719822, D59787, D81030, D51423, AW978661, AW973488, AV720211, AV718844, D80253, AV720203, AW964756, AW973307, D80043, AV723927, AV718938, AV718633, AW959628, AW965177, AW975605, AW949656, AW973485, AV718707, AV718931, AV720878, AV719557, AV720731, AW973482, AV699447, AW958992, AW958993, AV722801, AW959136, AW962082, AW959469, AW959202, D80212, AV720150, D80196, D80188, D59610, AW949657, D80366, D50979, D80219, AV705134, AV701004, AW949655, AW375405, D59927, D57483, D80378, D51022, AW962245, AW973330, D59889, D50995, AW960454, D80024, AV720812, AW949653, AW949631, AW949618, AW964737, AV718681, AW966032, AW959582, AW956397, AW949629, AW949633, AW949632, AV700889, AA305578, AW964532, AW973447, AW966043, AV720533, AW753053, AW966023, AV718530, AV721386, AV707024, D80241, AV727990, AV699746, D81026, AV727978, AW960564, AV699669, AV742001, AW960504, AW960532, D51060, AW965176, AV742022, AW973465, AV738928, AW752082, AW753067, AW964541, D80248, AV699866, AW975623, AV705869, AW966332, AV720654, T03269, AW960570, AW178893, AW179328, AA514188, AV701125, AV701166, AV701149, D80251, AV719913, AW960474, AI557751, AV699652, C75259, AW973490, AV701443, AW378532, D80522, AV719049, AW966399, C14014, AW966333, AV742667, AW177501, AV701335, AW966331, AV742430, AK025267, AK025111, AB020625, ACO 16572, AX047063, A62298, AX047064, A62300, AR070327, A84916, AX047062, A82595, Y17188, AR018138, AX033851, AX020191, AX035434, AR016808, AX020190, AJ302649, Y17187, AX027925, AJ132110, A94995, AF058696, AR087649, A30438, AX021518, AR008278, AB028859, X67155, D26022, A25909, AX028130, A67220, D89785, A78862, D34614, X82626, AR074545, AR016514, Y12724, D88547, AB002449, AR060385, A43190, AR077702, AR092424, X68127, AR025207, AR008443, AR038669, AJ294956, 150126, 150132, 150128, 150133, AR091537, Y08991, AF260572, AR066488, U79457, A44171, AR060138, A45456, A26615, AR052274, AX014811, AR008277, AR008281, AB012117, AR074139, Y09669, A43192, 114842, AR016691, AR016690, U46128, AX015396, AR066487, AR074136, AR054175, AR074141, AJ287395, AR066482, S68736, AR066490, A85396, AR088705, AX042372, D50010, A85477, 119525, 118367, A86792, A63261, X93549, A70867, AR008408, D88507, AR062872, AR093385, AF135125, D13509, A64136, A68321, AR060133, 179511, AR050070, AF217994, AF123263, AR032065, and AR008382. HCECR39 1113428 AI885174, AI744622, AA814734, AA729021, AI636514, AI401144, W58757, T17420, H29295, AI271692, AI817490, AA476679, R54385, AA877627, AW195601, AA701423, AA004377, Z40193, AA036722, AA046759, AA004376, R87400, W25867, AA766565, R84338, F06493, R90870, AA322984, AI743101, R68843, AI479057, R34643, AA341547, AA946714, R93883, R66774, R58428, AA700399, AA026328, N47479, AI536655, F06935, R94042, W78955, AA652599, U90550, AR036568, U90543, AR036564, U90142, AL021917, U97497, U97495, and AL050330. HCECR39 14 812734 AI885174, AI744622, AA814734, AA729021, AI636514, AI401144, W58757, AA476679, AI271692, T17420, AI817490, H29295, R54385, AA877627, AA701423, AA036722, AA004377, Z40193, AW195601, R84338, AA004376, W25867, R87400, AA766565, F06493, R68843, R90870, AA322984, R34643, AA046759, AI479057, AA341547, R93883, R66774, AI743101, R58428, AA946714, AA700399, AA026328, N47479, AI536655, F06935, R94042, W78955, AA652599, U90550, AR036568, U90543, AR036564, U90142, AL021917, U97497, U97495, and AL050330. HCE2X64 1111069 A 157772, AI768325, AW072067, AW163204, D52151, D52158, C14535, D52025, AW090592, D52014, AA916782, C14534, AI268693, AI589300, D51740, D51951, R54483, D59739, H19000, AI341953, AA627910, C14295, T15574, R52319, H49512, H49742, AA907297, AA363868, H41615, H40838, D59792, Z45247, Z41478, D52130, H19101, F08485, D51823, F04956, D51574, AA333764, D59715, T31138, H06704, F04609, C14365, T33909, T34829, AW163729, AW163813, AI681322, AW132034, AI282903, AL121328, AI682743, AI633419, AI569616, AI537677, AI491852, AW129202, AI249257, AI811344, AI828731, AI539771, AI273048, AI591316, AI284020, AW088793, AI590999, AI572676, AI857296, AI799199, AI554427, AI636445, AL043326, AI868831, AW087445, AI922901, AW169671, AL045500, AI539153, AI610645, AI866608, AI612913, AL036396, AI680165, AL119791, AI433157, AI349772, AL036146, AI554484, AI873704, AI610756, AI912866, AI498579, AL121270, AI590021, AL047042, AI687465, AI702406, AI273843, AI811863, AI475451, A 078929, AI499463, AI520785, AI801322, AI682720, AI433976, AI802542, AI224992, AI678302, AI568870, AI612759, AI952360, A 118512, AW131954, AI679321, AI612920, AW196141, AI690312, AI571551, AW168795, AW238730, AI884469, AW002342, AI702433, AW082040, AI269862, AI344817, AI475817, AA427700, AI866002, AI863014, AI680280, AW262565, AI689571, AI859402, AI860537, AI619749, AI636719, AW082060, AI538716, AA225339, AL047763, AW071349, AL036361, AI568296, AI250293, AL036802, AI679916, AI678762, AI570384, AI859511, AI824557, AI673256, AW103893, AI561299, AW150578, AI269696, AI475371, AL135661, AI567360, AI590120, AI690751, AI282504, AI654750, AI474107, AI648684, AI500039, AI567993, AI872711, AI598061, AI888501, AW117882, AI620868, AI571909, AI801608, AW268253, AI434281, AW162071, AW129170, AL045997, AI566507, AI580190, AI801766, AI567351, AW301409, AA640779, AI500077, AI281779, AI701074, AI862144, AI097248, AL045266, AI648663, AI349645, AI580240, AI570909, AI686597, AI573032, AI273142, AW102785, AA470491, AW403717, AI349933, AI445165, AL040243, AI540832, AI4466Q6, AI439087, AW274192, AL040169, AI679504, AI613017, AI919345, AI453322, AI684279, AI640379, AL079963, AI920968, AI537075, AI687728, AI492528, AI469532, AI654276, AI274013, AI500146, AW195957, AL036759, AI436456, AI815855, AI624668, AI264741, AW103371, AI521012, AW160386, AI860674, AL048871, AI670782, AI432229, AI064830, AI469811, AI628292, AI745713, AI536638, AI801544, AW151485, AW090013, AI269205, AI800453, AL050342, 148979, 189947, AL122050, AB019565, AF090903, AL050146, AF090934, AF113677, AF104032, AF090900, 148978, AL133016, ALO50393, 189931, AF090901, Y11587, E03348, S78214, AF113691, AFl 13013, AJ242859, AF078844, AL080137, AL133640, S68736, AL137527, AFl 13019, ALl 10221, AL050149, A08916, AFl 18070, A08913, L31396, L31397, AF090943, AFl 18064, ALl 10196, ALl 17457, AF125949, AL122093, AF106862, AFl 13689, A93016, AL137459, AR059958, X84990, AF017152, AL080060, AL050277, AL049938, AF158248, AL133093, AL133606, AL122121, AL133075, AL096744, AL137557, AFl 13676, AL080124, ALl 17460, AL050138, AL050108, AL133557, AF090896, AL133565, AL050116, AFl 13694, AFl 11851, AL049452, AL137283, AL122123, Y11254, AF113690, AL133080, AF113699, AL049314, AF091084, U42766, X63574, E07361, AF146568, AJ000937, X82434, Y16645, AF079765, AF125948, AL049300, AL049466, A65341, AR011880, AL117394, U91329, 149625, ALl 10225, AF017437, E07108, AL049382, AF177401, AL137550, ALl 17585, AF097996, AL133560, AJ238278, A08910, AL049464, U00763, AL050024, E02349, A08912, AL049430, AL122098, ALl 17435, ALl 17583, AF067728, AFl 18094, AFl 83393, A77033, A77035, AF087943, 133392, X65873, X72889, A58524, A58523, AL049283, A08909, Z82022, A12297, AL137648, 103321, AL137463, AL122110, AL137538, X70685, U35846, X96540, AL137271, U80742, AL133113, AL080127, U72620, A03736, 109360, AL080159, X93495, U67958, 126207, X98834, AC006336, A93350, 166342, 142402, AF061943, E15569, AJ012755, ALl 10197, AF000145, AL137521, AC004690, S61953, AFl 19337, AL133072, E08263, E08264, AF095901, AL050172, AR013797, 117767, U96683, Y09972, AL133568, ALl 10280, AC004093, AL133014, AF057300, AF057299, AR000496, U39656, AF026124, AL133104, AF111112, ALl 37523, 100734, AF008439, AL137526, AL122111, E00617, E00717, E00778, AL133098, AL137560, AL133077, AL122049, A08911, TJ68387, AL137556, A07647, AC006371, AF026816, AC004987, Y14314, E05822, AF109906, AF106827, M30514, Z37987, AC004686, AF003737, AJ006417, AL137476, AL122118, AR038969, U88966, AF079763, AC005940, AL133067, AR054984, AF091512, Z72491, AF162270, AF153205, U58996, ALl 17440, AF081197, AL137429, A90832, AF210052, A45787, AF185576, AF100931, AR038854, AC007390, AF111849, E04233, X62580, L30117, X83508, X87582, AL080074, ALl 17432, U49908, U62317, L13297, AL137533, and AC005992. HEMFH17 1111071 AW300475, AA476679, AI202379, R84338, R93883, AA322984, AA766565, AL021917, AL050330, U90543, ω -n ^ σ o\ ' ^ σl ^ ^ ω o ^ ^ ω ^o ^D \D y3 M H ιn ω ^ oD ω ω ^^ O '* ^ r , ^ r l ω H N Λ ifl σi o ^ σι w σi N ^ ιn (Ni -(i o o Ln H H H O o o o o o o H H o o o σ o o H H r Lo r^ i^ OT Vjo ^ ^ oi r ro ^ r r ro '^ r^ r- r r i) ri M in uxΛ n ri m oi ^ ^ H iη π O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O σ O O O O O O O O O O O t-I H O O O O O O O o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O oo <J o o o o H ro D j) ω tø in o in o in σ in m o H <N Uϊ «X> <Φ H H m H O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O o o o o o o * ro H J l l I I I I I I I I I I I I J J I I I I I I i J l l l l l O O H H N H I O O O H H H H OI H H O U Cn Pr fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa * * * * * * * * * * * * * * * * * * * * * * * σi σi cn H o o <tf r- O O O O o o o o «-l i-l r ro co cι o o o ri H > U U U ■ U U H > nαnniij iig iiigaiiiiiinmn nαiiiigβciioiαin oi dK gigio d i m m m m m m co n n n n n m m m ca m cα co m ca co cα co cQ co n di A a a a B m co cα cQ CQ cα cα m ca co 90 o H ft ft rt! ri! et «!«;<; rt!rt!ri!rt!rt;rt;ri!rt! o O O ri ri ri ri ri ∞ m o ri rs] ro , m vβ co cΛ θ ri 3 r '* t u> r o σϊ θ ri cNi r ' ιn D co rΛ o ri M ro "* ιn ω r^ ω m o H t M 'ψ in co ri n n < l ιn ιo MD o\ i H ri ri oι c C ι c θ] θ] C M C co r r r ro r ro r ro θ '=t< <' <tf 'y< 'y< ^ '^ •Φ '^ 'ϊf in i i i i i Ln in ιn ι y> o u3 i_> U) V_> m ø vo rβ , ni ω ni ci ιu <i) ci) ι ii) i H > ι t5i m ^ (i) n _^ πi M πi , r (U ι p (-4 , (u -i ι ω i 0) 3 O f-ι (U ω 3 !H D, ιl) -H i t— ι u/ u/ H H r 1 H <1 ) - - (1) m rH <D rH ri ri ^ ri ri <D rH rl -i (U ri Λ ifl U H d ) H H O ) H H ri I0 H H Il ) J ) ιri Λ ι-H lH ω H ι α) (U ra H rt H g Λ! OI J O θ H j ft 0) H CO H H H Λ ri! o <; < J H H O ft O H 01 B << a Bl H Fl B 01 CI H tJ O << O H h ( n ϋ tl ft O ft a! H j ι ω H > He 69 B B -0.49 1.01 J -0.60 0.13 Gin 70 B B -0.19 1.01 " -0.60 0.36 Trp 71 B B -0.53 0.33 ■ * -0.30 0.84 Leu 72 1 I . . B -0.50 0.11 ■ * -0.15 1.18 Lys 73 1 . . . B -0.46 0.07 * F -0.15 0.51 Glu 74 I i . . B 0.09 0.36 * F -0.15 0.40 Gly 75 B 1 -0.72 -0.13 * F 0.85 0.48 Val 76 I . . . B -1.29 -0.13 * 0.30 0.20 Leu 77 1i . . B -0.51 0.51 * ( -0.60 0.08 Gly 78 I . . . B -0.56 1.01 ■ * -0.60 0.12 Leu 79 I . . . B -1.26 0.59 * -0.60 0.27 Val 80 I . . . B -0.87 0.73 * -0.60 0.28 His 81 1 . . . B -0.01 0.04 * -0.30 0.57 Glu 82 1i A 0.46 -0.39 ■ » 0.45 1.20 P e 83 I i A . . 0.84 -0.64 ■ > 0.75 1.60 Lys 84 1 i. A 1.66 -1.29 * . F 0.90 2.36 Glu 85 1 s. A . . 2.51 -1.79 ■ > F 0.90 2.27 Gly 86 I \. . . . Vf . 1.73 -1.79 * . F 1.30 4.54 Lys 87 1 i . . . 1f . 1.43 -1.89 * F 1.30 1.87 Asp 88 1 i . . . 1 P . 2.13 -1.50 * . F 1.30 1.45 Glu 89 1 . . . 1 C . 2.09 -1.50 * . F 1.30 2.54 Leu 90 1 \. A . . 2.09 -1.53 * * F 0.90 2.20 Ser 91 I Si A . . 2.43 -1.53 " F 0.90 2.20 Glu 92 I 1 A 1.79 -1.53 * . F 0.90 2.20 Gin 93 ϊ . A 1.09 -0.91 * F 0.90 2.64 Asp 94 1 I A . . 1.20 -0.81 * * F 0.90 1.70 Glu 95 I ϊ A . . 1.67 -1.20 * F 0.90 1.93 Met 96 I A . . 2.08 -0.77 * 0.75 1.10 Phe 97 t . . . . 1 P . 1.77 -1.17 * 1.15 1.29 Arg 98 I . . . . 1 1.18 -0.69 * * F 1.30 1.08 Gly 99 1 1 1 [ ■ . 0.32 -0.19 * * F 1.00 1.10 Arg 100 I V 1 ! . -0.38 -0.16 * F 0.85 0.94 Thr 101 1 . . . B -0.37 -0.16 * F 0.45 0.42 Ala 102 1 . . . B 0.33 0.34 * -0.30 0.43 Val 103 1 ^ . . B 0.22 -0.09 * 0.30 0.36 Phe 104 B B -0.29 0.31 * -0.30 0.43 Ala 105 B B -1.29 0.47 * -0.60 0.32 Asp 106 B B -1.83 0.66 -0.60 0.30 Gin 107 B B -1.59 0.66 -0.60 0.26 Val 108 B B -0.73 0.30 -0.30 0.25 He 109 B B -0.62 0.20 -0.30 0.24 Val 110 B B -0.33 0.70 -0.60 0.14 Gly 111 B B -1.14 0.69 * -0.60 0.26 Asn 112 B 1 P . -1.03 0.73 * -0.20 0.30 Ala 113 1i 1 C . -0.99 0.04 * 0.10 0.80 Ser 114 I . . . . 1 C . -0.06 0.09 * * 0.10 0.66 Leu 115 1 s. η D . 0.80 -0.34 * * * 0.70 0.83 Arg 116 1 . A . . 0.29 -0.34 * 0.45 1.32 Leu 117 A B 0.29 -0.20 * 0.30 0.73 Lys 118 A B 0.07 -0.19 * 0.45 1.53 Asn 119 A B 0.06 -0.19 * 0.30 0.64 Val 120 A B 0.87 0.30 * -0.15 1.13 Gin 121 A B 0.17 -0.39 0.30 0.94 Leu 122 A B 0.63 0.11 -0.30 0.59 Thr 123 A B 0.28 0.14 I 0.10 0.79 Asp 124 B r V . 0.03 -0.01 * I 1.35 0.66 Ala 125 1r ι C . 0.93 0.34 I 1.55 1.25 Gly 126 1r . 0.27 -0.34 I 2.40 1.73 Thr 127 r V . 0.83 -0.26 I ? 2.50 0.56 Tyr 128 B r ϋ . 0.26 0.50 0.80 0.86 Lys 129 B 1f - -0.63 0.69 0.55 0.61 Cys 130 B C . -0.36 0.94 0.30 0.30 Tyr 131 B 1r . -0.31 0.94 0.05 0.27 He 132 B B 0.04 0.57 . -0.26 0.18 He 133 B B -0.06 0.57 * 0.08 0.68 Thr 134 B B -0.06 0.43 * I 0.57 0.43 Ser 135 B 1 C 1 . 0.27 -0.33 * I 2.36 1.23 Lys 136 1 [ ■ 1 C . 0.51 -0.59 * I 3.40 1.74 Gly 137 r r . o.8i -0.87 * I 3.06 1.94 Lys 138 r C 1.70 -0.86 t * 1 ϊ 2.52 1.46 Gly 139 C 1.20 -0.84 * I 1.98 1.17 Asn 140 ^ [■ C 1.50 -0.16 * I 1.39 0.98 Ala 141 B -r . ι.2i -0.59 * I * 1.15 0.85 Asn 142 I3 T . 1.60 0.17 * 0.25 1.34 Leu 143 I 3 T . 1.24 -0.26 * 0.85 1.67 Glu 144 I 3 1.24 -0.17 * 0.65 2.38 Tyr 145 A T . 0.66 -0.24 * 0.85 1.47 Lys 146 A T . 0.54 -0.14 * F 1.00 1.79 Thr 147 A T . 0.24 -0.04 * F 0.85 0.90 Gly 148 A T . 0.46 0.34 F 0.25 0.77 Ala 149 A 0.24 0.20 -0.100.38 Phe 150 I 3 0.49 0.63 * -0.400.41 Ser 151 I 3 -0.410.14 -0.100.71 Met 152 I 3 -0.100.36 -0.100.52 Pro 153 I 3 -0.610.26 * -0.100.97 Glu 154 I 3 -0.020.11 * F 0.05 0.54 Val 155 ϊ . 0.43 -0.27 * 0.50 0.91 Asn 156 1 1 T . 0.73 -0.13 * 0.70 0.92 Val 157 1 I T . 0.74 -0.16 * 0.70 0.85 Asp 158 Ji T . 0.66 0.34 * 0.25 1.16 Tyr 159 I I T . 0.36 0.09 * 0.10 0.97 Asn 160 T C 1.21 0.07 * 0.45 1.75 Ala 161 T C 0.90 -0.57 * F 1.50 1.81 Ser 162 1 I T . 0.94 -0.09 * * F 1.00 1.67 Ser 163 1 . T . 1.06 -0.16 * * F 0.85 0.86 Glu 164 ; A 0.63 -0.56 * * F 0.90 1.66 Thr 165 1 A 0.63 -0.49.* * F 0.45 0.66 Leu 166 A I 3 0.63 -0.87 * * 0.60 0.86 Arg 167 A I 3 0.72 -0.76 * 0.76 0.50 Cys 168 A I 3 1.13 -0.33 * 0.62 0.54 Glu 169 A I 3 0.84 -0.81 * 1.23 1.28 Ala 170 1 ? C 0.46 -0.59 * * F 1.99 0.68 Pro 171 T 1 1.06 0.20 * * F 1.60 1.11 Arg 172 T 1 [ ■ . 0.94 0.06 * . F 1.29 0.99 Trp 173 T 1 P . 1.40 0.46 * . F 0.98 1.69 Phe 174 C 1.09 0.39 * . F 0.72 1.69 Pro 175 C 0.82 0.44 * . F 0.26 1.25 Gin 176 B C 0.18 1.09 * * F -0.250.88 Pro 177 B C -0.220.81 * * F -0.250.75 Thr 178 B C -0.520.94 F -0.250.51 Val 179 I 3 B -0.121.01 -0.600.30 Val 180 I 3 B 0.09 1.00 -0.600.26 Trp 181 I 3 B -0.770.97 -0.600.31 Ala 182 I 3 B -0.561.13 -0.600.31 Ser 183 I 3 B -0.240.49 -0.390.70 Gin 184 I 3 B 0.27 0.24 ι ' . F 0.42 1.15 Val 185 I 3 B 0.53 -0.24 1k . F 1.23 1.13 Asp 186 1 V 1 ? . 0.82 -0.24 ■ >t * F 2.09 0.85 Gin 187 1 [" C 0.71 -0.23 Jk . F 2.10 0.79 Gly 188 1 C 0.71 0.16 J F 1.29 0.92 Ala 189 1 P C 0.71 -0.10 J * . F 1.68 0.74 Asn 190 C 0.71 -0.10 J F 1.27 0.74 Phe 191 I 3 0.41 0.14 ■ > 0.11 0.56 Ser 192 I 3 0.41 0.10 F 0.05 0.74 Glu 193 I 3 0.44 0.00 ■ > F 0.65 0.74 Val 194 I 3 0.73 0.09 ' * . F 0.20 1.23 Ser 195 C 0.03 -0.31 " F 1.00 1.23 Asn 196 1 [ • C 0.73 0.09 " * . F 0.45 0.61 Thr 197 1 [ ■ C 0.22 0.09 't * p 0.60 1.43 Ser 198 1 I 1f . 0.22 0.13 'f * p 0.25 0.88 Phe 199 1i 1f . 0.78 0.14 * 0.10 0.88 Glu 200 1i 1.08 0.13 * -0.100.82 Leu 201 1 . 1.08 -0.36 * F 0.80 1.06 Asn 202 1 . 1 F . 0.53 -0.34 * F 1.00 1.97 Ser 203 ; . 1f . 0.52 -0.49 * F 0.85 0.84 Glu 204 1 . 1 P . 0.62 0.00 * F 1.00 1.47 Asn 205 J . 1 : . 0.67 -0.07 * F 0.85 0.91 Val 206 1 . B 0.62 -0.47 * ' . F 0.60 1.35 Thr 207 1i. B -0.23 -0.21 ■ > 0.30 0.58 Met 208 I 1 B -0.23 0.43 ^ -0.600.27 Lys 209 I 3 B -1.090.41 J . -0.600.48 Val 210 I 3 B -1.900.41 ■ > * -0.600.25 Val 211 I 3 B -1.290.61 -0.60 0.21 Ser 212 I 3 B -0.980.76 " . -0.600.16 Val 213 I 3 B -1.231.16 * . -0.600.35 Leu 214 I 3 B -1.591.16 * * -0.600.35 ^ ω iO ω Ol lO rl CJ O M tή H CO m t t I> O O t^ O -tf co oj ro CU tø Ji H h H CO O O O in M O o ro ro vu r CΛ Ln c r r ^ ui -Λ io oo c^ t> m if) H H ro CM H H ri H Cϋ π CM O O O O O r-J O O O O O O O O O O O H O O O O H O O H CM CM CM CM CM CM O O O O H O i-l H O O O O O O O O O O O O O O O o o o o o o o o o o o o o o un o o o o o o o m 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o0 o0 0 O O O O O ιo ιo io y) 'f i o ιn ) π ω iD θ o o o o o o oo ro u U) m H ro ■ • • ' r ro CΛ θΛ cr. σι cr» r m m O O O O O O O O O O O O O O O O O O O O O O O O O O O O O • O O O O O O H O O O I i o o O O O O O O O O O O O U En En fa fn fo fa to Pn En Pn En Pn Pn Cn Pn En Cn En En Pn En Pn En En En * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * o o ri r r- ro cn r co co ^ cn co co co cN cN ri O M VD t^ co cn o ri ro co o ri ri vo ro ri σ ω r~ o n cn cn ^f σi o iv ri rn ^ i rO '* o ^ ^ ri f~ '* r ro iN so <φ co cn o o r^ CNi Ln cn r-- r^ ro co '3< ri v0 ri iD co in oo ro ro ro *ji o C o ^i< o in ^t< >* o cN CN in co ro ro ro -^ CΛ CN 'Ht r- cn cn in <φ ri O O O O O O O O O O O ri ri M ri ri H ri ri ri ri O O ri ri o o o σ o l O O O l O l o o 1 O O O I O O O OO O O ri ri ri M ri ri O ri O O O O T U U O CQ m m ca CQ ra m m m m ca co m co m co ro cQ co cα cQ co fq m co cq co co ca co m m ro ca CQ Q ca • ca ca cQ CQ CQ cQ ca m ca et et ft et et et ft rt et et et et et ft et et et ft et et ft et et 90 IΛ i t^ t^ rt rf ri rt rt ^ rt et ri ri tt ft et fi fi flS rt rt elS ft rt ft et et ft et ri! ri! ri! ri! o O ιn lD ^ to m o H M n ^ ιn w) ^ ro m o H ^^ n rf w ιD ^ ∞ !Λ O H M f ^ lJl ω ^ o) l^ o H w n ^ ιn ιo ^ ω Ol O H C^ ^^ ^ ^ ω cD ιΛ O ^^ M t<l ^ ιn lD ^ ra σt o ^l « O H H H H H CI N M n M π f^ π ϊl N π π n ( π fO M rt ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ lrl ιn ιn ιn ιΛ ιn ιfi ιΛ lfi ^D y) φ ^o y) y5 y) \D ^I) U3 ^ ^ ^- ^ ^ ^ α) OJ (D k t| ri h ( ) i! ι! h h l< ιι jJ « 3 [| ft « ιιl « ιt l ( ι ft « » H Jι 5 h 3 ιII « Ill tI1 tι « 3 (i 3 3 El ιιl h rl » H >( μ « l ) ιt l ) h (iι i ( 3 3 0 3 h O ( t S i' rt « >ι « Hl Λ H » ϋl J! ι l) !>ι « H ri « » ri ri >ιH J3 H II ri M) jj rl (l) H ri !>ι H h l) .H I) ri ll l) i lll >ιH «) ll) >, l( l) » Λ Λ ri H « h H I ll h « « lt >ι « III (l , h > ri H < B fι tO U S H O ι( H < J ι< ft B H J > ^ (J I« θ H J rt < [ 0 |Il fl β J Λ (< 01 J <( Ill J U > tO tl Λ (lι << H tO t ( (l! Λ J ft J tll ft t< Λ _ hl ιl 1 * # D co o o m o vχ> U) H ro o o o o o o o o o ω m in ω Lo o -n ^ ri ooooooooσ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ri r cn o cN O ' , u> io i co co iD ^F Oi ro c ro co vD ri ro o ri ri so ro r- <D co i i co o ri cN -^ 'Φ o o ri 'Φ OJ o cn i c Ln 'ϊf r^ ri m in o ID so ro ro o o o ri o ^ co • o o o o o M > m co ca ca ca co co ca ca ca co ca ca co ca CQ ca ca ca H ft ft ft et et ft t^ fi ft fi ft f ft ft ft ft ft ft et ft ft ft ft ft rt «!ri!ri!ri; ri;ri!rt!ri! 90 IΛ ri!rt!tr!ri!ri!ri!rt!ri!rt!ri!rt!ri!rt!rt!rt!ri!rt!ri!ri! ri! ri! et et ri! ri! ri! et o et ft © O o ri f , l f , l ^ ιΛ ^D ^ flO c o ri N ^ ^ l/ι u3 o ^ o ri ι ^^ ^ ιlι ω ω σl O H M f ^ lΛ lo ^ ω m o H ! ^η ^ ιΛ y> cϋ m o ri N c*l ^ ι) l0 ω c o ri CN ro ^ in ω r^ ∞ cn ri ri ri ri ri ri ri ri ri ri J CM CM C Ol c M M M M ro o ro r ro ro r ro ro r ^ ^ ^ .^ ^ l ιll J 3 3 J 3 h S 3 3 β 3 » l! « * * 3 ri h H 0 ιi 3 !i h « l ) ? ιι >ι h β ri tι 3 5 ιi fl < ) Pι h >, h i ri (i 3 , ι* « Jι 3 β ιi ri 3 !l (iι μ h 0 » 0i w ft hq !-l )-l S i-l W hq c5 J O J W 0 H ri; ri: .q H H > EH ft J 0 J EH H H U n a- H n o a Q w ir , - H H ffi i-3 :> H i- < ; p i-3 m :» H < t H i-' rf | H H F Sa Sa !ι : *5=' ro w td td td td td td td td i vj o si H Λ itO Ni i ω o o αi ω w to M tD CD ^ w w ^ 00 ω w ω cn w o J * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * O O O OOO OH O O I O OO H M H H O O O I oooooooooσoooo O OO O O O OO O O O OO O O OOOO O oooooσoo H H H MooooσoooooooMHo H oooHω Gin 144 A A 0.22 0.56 . * . -0.600.44 Ala 145 T T 0.01 0.63 . * . 0.20 0.48 Thr 146 T T 0.01 0.57 . F 0.50 1.39 Gly 147 T c -0.270.69 . 0.00 0.66 Tyr 148 B T 0.40 0.79 * -0.200.66 Pro 149 A B -0.460.29 . -0.300.79 Leu 150 A B -0.170.44 . -0.600.59 Ala 151 A B -0.140.40 . -0.300.51 Glu 152 A B -0.010.56 . -0.600.35 Val 153 A B 0.23 0.56 . -0.600.65 Ser 154 A B -0.410.27 . -0.151.03 Trp 155 . T c 0.10 0.41 . 0.00 0.44 Pro 156 T c -0.170.80 . 0.00 0.80 Asn 157 1r T -0.380.80 . 0.20 0.44 Val 158 B T -0.110.84 . * . -0.200.65 Ser 159 B 0.19 0.43 . * . -0.400.43 Val 160 B 0.17 0.40 . * . -0.100.43 Pro 161 B T 0.08 0.49 . * . -0.200.83 Ala 162 1 [ • T 0.04 0.23 . * F 0.65 0.83 Asn 163 T c 0.60 0.34 . * F 0.60 1.52 Thr 164 I 3 T 1.01 0.09 . F 0.40 1.31 Ser 165 c 1.56 -0.34 . F 1.00 2.55 His 166 c 1.56 -0.36 * F 1.34 2.29 Ser 167 c 2.14 -0.33 * F 1.68 2.45 Arg 168 c 1.80 -0.81 * F 2.32 3.16 Thr 169 T c 1.30 -0.77 * F 2.86 2.30 Pro 170 T T 1.36 -0.59 * F 3.40 1.42 Glu 171 T T 1.39 -0.21 * F 2.76 1.13 Gly 172 B T 0.83 0.19 * F 1.42 1.36 Leu 173 B B 0.41 0.34 * 0.38 0.65 Tyr 174 B B 0.42 0.40 * 0.04 0.54 Gin 175 B B -0.22 0.79 * -0.600.74 Val 176 B B -1.031.00 * j > . -0.60 0.66 Thr 177 B B -0.58 1.00 * * . -0.60 0.35 Ser 178 B B -0.58 0.24 * * . -0.30 0.39 Val 179 B B -0.29 0.53 * * . -0.60 0.44 Leu 180 B B -0.50 -0.11 * * . 0.30 0.61 Arg 181 B B 0.14 -0.17 * * . 0.30 0.70 Leu 182 B B 0.24 -0.13 * * . 0.79 1.46 Lys 183 B B 0.20 -0.34 * * F 1.28 2.74 Pro 184 c 1.17 -0.60 * * F 2.32 1.38 Pro 185 T c 1.98 -0.60 * * F 2.86 3.29 Pro 186 T T 1.17 -0.89 * * F 3.40 2.64 Gly 187 T T 1.68 -0.10 * F 2.76 1.48 Arg 188 T T 0.97 -0.14 * F 2.42 1.28 Asn 189 B T 0.32 0.00 * 1.38 0.44 Phe 190 B T -0.17 0.21 * 0.44 0.33 Ser 191 B T -0.24 0.57 * -0.20 0.15 Cys 192 B T 0.10 1.49 * -0.20 0.10 Val 193 B B -0.32 1.49 * -0.60 0.18 Phe 194 B T -0.361.19 . -0.200.19 Trp 195 B T -0.511.30 * * . -0.20 0.49 Asn 196 B c -0.10 1.37 * * . -0.40 0.49 Thr 197 B c 0.57 0.73 * ► . -0.251.11 His 198 1 \ c 0.61 -0.06 * * . 0.65 1.82 Val 199 1i 1 \ 1.00 -0.29 * 0.30 0.93 Arg 200 I 1 . 0.48 -0.20 * v " . 0.30 0.93 Glu 201 1. 1 . -0.11 0.00 * 0.30 0.57 Leu 202 I \. 1 . -0.10 0.00 . 0.30 0.77 Thr 203 1 \ 1 . -0.96 -0.26 * 0.30 0.53 Leu 204 ; i 1 1 -0.10 0.43 * J ► . -0.60 0.21 Ala 205 I i 1i -1.02 0.43 * • * . -0.60 0.43 Ser 206 1 - J \ -1.02 0.43 . ► . -0.60 0.25 He 207 Ii. 1 . -0.51 0.34 . ■ > * . -0.30 0.52 Asp 208 ϊ 1 -0.20 0.04 . Jfc . -0.30 0.69 Leu 209 I 1 0.01 -0.06 . ■ > k F 0.45 0.89 Gin 210 1 i 1 . 0.60 0.17 . i * F 0.00 1.26 Ser 211 1i c 0.69 -0.51 . J " F 1.44 1.30 Gin 212 1 \ I 3 1-69 -0.09 * " F 1.28 2.44 Met 213 1 . c 1.38 -0.77 . " F 2.12 2.76 Glu 214 I 3 T 2.16 -0.69 . * F 2.66 2.97 Pro 215 T T- 1.94 -0.57 . i " F 3.40 2.34 Arg 216 1 [ • 1 1.93 -0.54 * v " F 3.06 3.65 Table 5 II III IV VI VII VIII IX X XI XII XIII XIV CΛ >-D cM i-J Cn En En n En Cn En En En En Cn En En En En En En Cn En Cn En En Cn * * * * * * * * * * * * * * * * * * * * * * * * * * ro ro rt ^ ' o o H i>- o cn cn u> o rt cn r- o ro ro o ro rt ro ^ n r- n n H CM ro o H H r- co ro ro o o o o o o o o o o o o o o o rt rt rt rt H O OOO OOO OO OH H O o o CM <tf co co cn <tf n u) U) r co \0 o cn ro ro H rt rt o M n ^ n co H rO i '^ '^ I 1 I I I I I I I I I I I I I O O I O O O H O O O O O O oo rf3 riJ f-t! ( (ϊC ri! rfϊ ri! » o o Nfl P l ti ri ll O ft lll O H tl lll S rl a ftiJ U J ^ ji li ^ o m M rj rt cs ιβ 4J 3 H ri (u m rι , H tι> iH VH r-! ι--ι oi ϊ) Cn a ι θi t vO CM O o o r n n H cn <* n rt t> o r c oo cn v co O H H CM CM r CO H H O O O H CM rO rO O O O O O O o o o o in o o o o O O O O O O O O O O O O O O O O O O ' O rt CM n co M o o v-o o -ςh ro M o r^ ^ υJ co i - cn o o o in ro co c co r ^ r c H CM r i co o c i , '* , ^ , ι ro o ' . ro • - • * rt rt • • ■ - r- ro co O O O O O - O O O O • • o o o • ■ • • o o o o o o o o o o σ o o o o o o o o • H I O O H CM rO CM r CM CM CM CM H r H O O O O O O O O O O O I O I O O I I I O O H o H O O I O U Cn Cn Cn En En En En Cn En En En En En En En En Cn En En En Cn En * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * r » ro -^ o vo cn o o o H H H H ro ω co o co o ro ro <* r~ r- o r ro ro co ro r- H co v^ H ro ro ro co H in H H O H o vD t-- cn o cn ri MJ cn cn co ri ro o ro ro t-- VD VD ^ι ^ o ri o ro cn oi ro in m ri ri ri cn O t^ ^ O I ^ O Oα ri ri CO t^ ιn ro r <tf VD <=ι< r-- cn vD n ω ri o ■* o o <# o O O O O O H O O O O H O OO OO O O OO O O O O H O O O I O O O O O O O O O O 1 O O O O O O ri O O O O O O O O O O O OO OO riO ri ri iD ri r^ o co co cn n ' o ri r-- cn o^ M co r o H O ^ o^ ro co co r H ^ CM o ^ o ri rO CO ri Ol tN Ln CN ID t^ r r-- ro r-- r co cn cn co o] ri ri co o ιn ιn ro uj σ H σ. o co o n r- c.ϊ H o LO • rt • o o cn • in in o in m vD ro rN in cn cn cn ' r^ ri • o O ri ri O O O O o o ri rt rt rt rt o o o rt rt rt rt rt O O O I O O O I 1 I 1 O O O ri riri O O O O O O I I I ca co ca ca ca ca ca ca ca ca ca m co ro ca Q cQ co ca ca cQ CQ cQ cQ • ca ca ca ca co ca cQ ca ca ca ca ca ro ro ca - ca cQ ca cQ m cQ ca co cQ CQ ril ril rij rij ril rij ril ril rij l ril rij rij rfj ril rij rij ri; ri!ri!ri! ri!ri;ri!ri!ri!ri! ri!ri!ri!ri!ri! cn cn o r- KD cn o o H U fo p-i En En fa fø En En Cn En Pn En Cn En En En En En En En fa En En En fo Cn En En En En * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * O OOOOOHO OHHH HOO i oo oo o o o o o o o o i I l O O O I O O I I I I I O H O u u u • rf! <! rf! rf! ι rf! ι<! <; rf! rf! <! rf! rf! oo o rf! ! rf! rf! rf! rf! rf! <I rf! rf! rf! rt! rfj rfj rfj rfl ril rfl rfj rfj rfl rfl rf! O H a σi f-i Oj β o p j ra pi ^ a Φ o cn o n iil ti pi ii , O cl i C! i S M ft tii h fl 0i ftj » , 3 « iH ? iB h 3 ^ ri f! S fi nf i t( « h ti ^ ii Cn ra iβ ra S iH tji p C ra lH CO H rH ( U ( U ιH ( U H lH Λ M iH iH Λ ri , b .H h ri ri ri II « » Λ ll ll h Λ I H « « -H ri l) ji ll » ri ri l) « Λ ll ri ri Il rl H d) ri « >, I « -H H -H <U 0) H H t , 3. > < (J! (i! H C) i4 J U t5 oi «i O Ei a ft <i l>i (< ι H ι3 O ft B O lJ ι< ι3 U ri << 01 ι< ri (< <( ι< _ !l! B J ft Λ! > O H I» J tι > β β ι< ι< β «l H t0 U ( » S !S ri! !B J CQ ri! U > c!) Ser 219 I i . . B 0.82 -0.93 * * F 0.75 0.99 Arg 220 B B 0.37 -0.24 * * F 0.45 0.94 Val 221 B B 0.37 -0.46 * F 0.45 0.54 Gin 222 T . . B 0.93 -0.46 * 0.64 0.67 He 223 I . . . . . 1 1.04 0.07 * * 0.78 0.36 Gly 224 1 . . . . . 1 1.46 0.07 * * F 1.27 0.95 Asp 225 T 1f . 1.39 -0.57 * F 3.06 1.07 Trp 226 T 1 2.21 -0.97 F 3.40 3.06 Arg 227 B 1.87 -1.16 * F 2.46 4.20 Arg 228 T "3 2.76 -1.16 J F 2.72 2.49 Lys 229 T 1 ? . 2.51 -0.76 ι » . F 2.38 4.10 His 230 T 1 2.17 -1.17 " F 2.38 2.12 Gly 231 1 C 2.50 -0.74 * F 2.18 1.07 Gin 232 T 2.50 -0.74 J F 2.52 1.07 Ala 233 C 2.43 -0.74 * F 2.66 1.54 Gly 234 T 1 2.14 -1.24 * F 3.40 3.11 Lys 235 B . . 1 ? . 1.88 -0.91 * F 2.66 2.81 Arg 236 T 1 1.92 -0.93 ■ » F 2.77 3.73 Lys 237 T 1 τ . 1.S2 -1.04 * F 2.48 5.05 Tyr 238 B . . T . 2.18 -1.09 F 1.79 3.39 Ser 239 B . . T . 1.63 -0.59 F 1.50 2.35 Ser 240 B . . 1 1.34 0.10 F 0.50 0.82 Ser 241 B . . 1 ! . 1.23 0.86 F 0.15 0.82 His 242 B 0.89 0.10 * 0.20 1.03 He 243 B 0.43 0.10 * 0.15 1.03 Tyr 244 B 0.52 0.50 ■ > -0.35 0.66 Asp 245 B 0.52 0.54 * -0.40 0.75 Ser 246 B 0.01 0.43 v * . F -0.10 1.44 Phe 247 B . . 1r . -0.26 0.43 * F -0.05 0.76 Pro 248 T C -0.070.06 " * . F 0.45 0.61 Ser 249 1 [ ■ C -0.42 0.84 F 0.15 0.39 Leu 250 1 : C -0.421.07 0.00 0.45 Ser 251 B -0.82 0.29 -0.10 0.49 Phe 252 B B -0.37 0.64 -0.60 0.31 Met 253 B B -1.041.01 -0.60 0.60 Asp 254 B B -1.56 1.01 -0.60 0.31 Phe 255 B B -0.631.31 -0.600.30 Tyr 256 B B -0.54 0.53 ■ -0.60 0.59 He 257 B B -0.70 0.34 -0.30 0.54 Leu 258 B B -0.44 0.99 ■ > -0.60 0.47 Arg 259 B B -0.66 0.63 * -0.35 0.29 Pro 260 B T -0.62 0.30 * F 0.75 0.65 Val 261 B T -0.27 0.19 1 * I 1.00 0.42 Gly 262 1 C 0.03 -0.50 * * I 2.35 0.42 Pro 263 T 1f . 0.89 0.00 " * F 2.50 0.28 Cys 264 B . . 1 P . -0.03 -0.43 i ' * F 1.85 0.74 Arg 265 B . . 1f . -0.68 -0.39 * 1.45 0.62 Ala 266 A B -0.42 -0.17 * 0.80 0.30 Lys 267 A B . . -0.42 0.01 * -0.05 0.55 Leu 268 A B . . -0.52 -0.13 * 0.30 0.28 Val 269 A B . . -0.67 0.36 * -0.30 0.40 Met 270 2 A . . . -0.73 0.54 * -0.60 0.16 Gly 271 2i A -0.96 0.54 ■ * -0.60 0.40 Thr 272 2 A . . . -1.00 0.54 * -0.60 0.44 Leu 273 2 A -1.08 0.30 * -0.30 0.77 Lys 274 2 \ A -1.03 0.37 * -0.30 0.55 Leu 275 2 A -0.78 0.63 * -0.60 0.31 Gin 276 2 \ A -0.43 0.57 * -0.60 0.37 He 277 A B . . -0.98 -0.11 * 0.30 0.32 Leu 278 1 \ A -0.20 0.53 * -0.60 0.29 Gly 279 2 A . . . -0.94 0.34 * -0.30 0.23 Glu 280 2 \ A -0.99 0.73 * -0.60 0.28 Val 281 2 . A -0.99 0.69 -0.60 0.26 His 282 2 A -0.06 0.00 J 0.30 0.45 Phe 283 2 . A 0.54 -0.43 0.30 0.52 Val 284 2 I A . . . 0.86 0.00 * 0.45 1.07 Glu 285 2i. A 0.56 -0.14 I 0.60 1.07 Lys 286 2 - . . . . 1 [ ■ . 0.60 -0.26 < * . I 1.00 1.66 Pro 287 2 \ r . -0.18 -0.36 ' * . 1 1.00 1.85 His 288 2 \ C . 0.52 -0.31 ' " . I 0.85 0.88 Ser 289 1 . . . . " C . 0.49 0.09 J fc 0.10 0.76 Leu 290 2 . . B . 0.19 0.77 * -0.60 0.35 Leu 291 B B -0.20 0.73 * -0.60 0.34 o > o H X rt o o o U * * * * * * * * * * * * * ro ro n i ro o o cn cn - r~ ro o cn cn σ\ n cn cn r~ co ri o iD iD cn cn rio t^ iD ri o o t- " * r- r o\ r- ι Ol ri Cn co cO CN Ol • ri o ro cN in o o o o o o o o o o o o I oooooooooooo o o o o o o o O O O ri ri ri ri o ri rii r- co cn o ri cn ∞ iD co ro ri r o t CN VD θ cn ri c^ ro co co t^ ri oι ιn cn cn ιn \D r^ cn iD ω co cn ro ro -Φ i' in cN cn o iD O o o o o o o o o o o o o o o O O O ri ri ri ri ri ri O ri O O I I 1 I I I 1 I U U U • • • • CQ CO Q CQ cq ro co cQ H H ca CQ ca ca ca ca o co ca ca ca H ri!ri!ri!ri!ri!ri!ri!ri!ri!ri! 90 IΛ o H ri! ri! ri! ri! ri] ri! ri! ri: ri! ri: ri! ri] ri; ri; ri! ri! ri! ri! © o oi ^ in υj r^ co cn o ri N ro ^ in ui t ^ co cn o ri c ro ^ in D t^ co cn cn cn cn cn cn cn cn o o o o o o o o o o ri ri ri ri ri ri ri ri ri o ri CN ro -^ tn iD C^ co oi oi oi oj oi oi oi oa ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro - in ω r CO Cn ri ri ri ri ri ri ri ri ri ύ « !^ , H h H 3 u n N O [I 3 3 n i) D10 Λ H S 3 Cl S . ri « HH »Λ Λ l) !>, NH μ n μ [ι » ri H « H >,ri ϋ)Λ h Λ ω ■H Jl » μ kri iιι » ιι iD ii) (5 H BHJ O t(l ti ri J hl hi B ft f< ft B Dl (lι 0ι t» Λ U rt! J |lι ft tι a o K ft W iϋ ft Λl tn J iU iJ Ala 40 A A -0.800.99 * -0.600.10 Met 41 A A -0.800.56 . -0.60 0.24 Val 42 A A -0.900.27 . -0.30 0.47 Gly 43 A T . -0.32 0.07 . F 0.25 0.67 Glu 44 A T . -0.32 0.06 . F 0.25 0.98 Asn 45 A T . 0.38 0.13 . F 0.40 1.09 Thr 46 - A T . 0.31 -0.51 . F 1.30 2.15 Thr 47 A A 1.13 -0.37 . F 0.45 0.66 Leu 48 A A 0.67 0.13 . -0.30 0.56 Arg 49 A A 0.37 0.41 . -0.60 0.32 Cys 50 A A 0.16 0.31 . 0.00 0.30 His 51 A 1 0.47 0.26 * 0.70 0.56 Leu 52 A C 0.82 -0.43 * 1.40 0.49 Ser 53 T C 1.63 -0.43 * F 2.40 1.85 Pro 54 T C 0.93 -0.60 * F 3.00 2.18 Glu 55 A 1 [ • . 1.60 -0.60 . F 2.50 2.67 Lys 56 A 1r . 1.63 -1.29 . F 2.20 3.45 Asn 57 A A 1.84 -1.67 . F 1.50 3.73 Ala 58 A A 2.14 -1.49 . F 1.20 2.13 Glu 59 A A 1.50 -1.49 * F 0.90 1.85 Asp 60 A A 1.61 -0.84 * F 0.75 0.85 Met 61 A A 1.28 -1.24 * 0.75 1.65 Glu 62 A A 0.58 -0.83 * 0.75 1.00 Val 63 A A 1.28 -0.04 * 0.30 0.52 Arg 64 A A 0.98 -0.04 * 0.45 1.03 Trp 65 A A 0.98 -0.27 * 0.30 0.80 Phe 66 A A 0.88 0.13 * -0.15 1.86 Arg 67 A T 0.58 0.27 * F 0.25 0.82 Ser 68 T 1 P . 1.22 0.66 * F 0.50 1.05 Gin 69 T . 0.52 0.17 * F 0.80 1.87 Phe 70 1 C -0.04 -0.11 . F 1.05 0.96 Ser 71 1 C ■ -0.040.53 . F 0.15 0.53 Pro 72 B C -1.010.93 . -0.40 0.27 Ala 73 B T -0.961.17 . -0.20 0.23 Val 74 B B -0.911.14 . -0.44 0.27 Phe 75 B B -0.560.76 . -0.28 0.35 Val 76 B B -0.60 0.76 * -0.12 0.34 Tyr 77 T 1 [ ■ . -0.28 0.69 * 0.84 0.45 Lys 78 T π C . 0.31 0.04 . F 1.60 1.02 Gly 79 . r C 1.28 -0.74 . F 2.14 2.39 Gly 80 1 V C 1.67 -1.39 * F 1.98 2.98 Arg 81 A C 2.52 -1.66 * F 1.42 2.15 Glu 82 A C 2.77 -1.66 . F 1.26 3.77 Arg 83 2 . A 2.72 -2.09 . F 0.90 6.59 Thr 84 1 V. A 2.47 -2.11 . F 0.90 5.83 Glu 85 2 . A 2.81 -1.50 . F 0.90 3.33 Glu 86 2 ^ A 2.70 -1.50 . F 0.90 2.95 Gin 87 2 . A 2.46 -1.50 . F 0.90 3.53 Met 88 ;i A 2.46 -1.23 . F 0.90 3.20 Glu 89 2i A 2.42 -1.23 . F 0.90 3.62 Glu 90 2 A 2.53 -0.80 . F 0.90 2.07 Tyr 91 2 \ r . 1.64 -1.20 . F 1.30 4.09 Arg 92 2 \ r . 1.33 -1.13 . F 1.30 1.66 Gly 93 2 r . 1.23 -0.64 . F 1.30 1.38 Arg 94 2 \ r . 0.38 0.14 . F 0.25 0.76 He 95 2 \ B 0.08 0.03 . -0.30 0.29 Thr 96 1 \ B 0.37 0.41 . -0.60 0.39 Phe 97 B B 0.26 -0.01 * 0.64 0.40 Val 98 B B -0.29 -0.01 * 0.98 0.95 Ser 99 B r . -0.40 -0.01 * F 1.87 0.46 Lys 100 T V . 0 . 60 -0.10 * F 2.61 0.86 Asp 101 T r . 0.57 -0.89 * F 3.40 2.27 He 102 F C 0.97 -1.10 * F 2.86 1.67 Asn 103 T [ ■ . 0.97 -1.10 * F 2.72 1.12 Arg 104 T 1 V . 0.68 -0.46 * F 1.93 0.50 Gly 105 T r . -0.18 0.04 * F 0.99 0.72 Ser 106 2 \ C . -1.03 0.04 * F 0.25 0.37 Val 107 2 \ B -1.03 0.29 . -0.30 0.14 Ala 108 2 \ B -1.07 0.97 . -0.60 0.10 Leu 109 B B -1.18 1.04 . -0.60 0.10 Val 110 B B -1.69 1.06 * -0.60 0.22 He 111 B B -1.70 1.06 . -0.60 0.16 His 112 2 \ 1 3 -1.43 1.04 . -0.60 0.28 o o KD O O O O ro ro OO O O O O O OO OO H i o σ o o o o o o o H i i U * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * r^ ■ * # o UD vo ^ ^ r r ro t- is <* - cn ro H H * ro H cn cn o cn co H O H H H r^ r H o cn ^ r^ o o cM C o ^ cn vfl H r ^ o ^ ^ σi H H t^ H ^ o r π ω o o r- ^ cn cM θ H o o ι ro rθ t c H i r ' ^ σι ^ o ro co vo ■ • • ' rt • • cn cn o • ■ o ro ri rl w oi o. ^ H ^ H O tη m ω * - O O O O - O O • • • - O O O O H i-l O O - o o σ • ' O O O O O O H O H O O O O l I I I O I l O O O O l I I I I 1 I J O I I O O O O O H O O l o o i i i i i i i i i i l oo o o σ o oo H H O o o ι rη ro cn o cn ro *-O H O is cn eft cn ro ro cn t*- ω o cM r^ H C^ r ω cM M CM C^ rM r H co M r ^ r o ιn cM r H r ∞ r r w ^ fO l (η ^^ co ^ o w) cl1 m o ' J ? n rl H ^ 'Φ f C] 0 co ( ^ cD ^ ^o H ^ι σl tΛ y) M • • ω r n c C co c c i i co LO ςμ H r^ o H C 'd' co H rO CO 'φ CO H rM CO CM CM CM U3 IS t^ CM CM U) CT» cn \£> C0 r0 C0 C0 C0 H • ■ O O O O H H CM CM H H H o o I l O H O O i-H O H O O O O H H H H CM CM H O O I I I I I I I I I O O O H OH OO O I l I J I l O O OO O O O OO OO OH OO O O I I EH EH EH rfj rfj rfj rfj rfj rfj rfj rfi rfj rfi rf; rfl rfj rfj rfj rfl rfl rfϊ rfj rf! rfj rfj rf! rf! <! < r ricrio crio crio crio crio crio S ri ιti P 3 d M <U t Oι ω M <I) cJ 3 , tJi ^ ^ Pι tθ α) 3 c7i 3 H ι-ι tti ! ι 3 -ι >H ω 0 3 S IU β ti rf ft>, li ι3 3 » ll l) ι ι ft h 0 3 0 J H tl,tIl ft θ ι SHri H ll Jj H H H «I H rl N h l !>ιΛ H rl H H Ill ι ll H rl rH II >t lll ll) lll H ι-l ll) rl « ι h ll) ι H ri ιH H H Il ri (l H h d) H !>,H « H H H , Jl rl h »Λ β M tl « >ιHH Ill ll ι< > ri (( D O «l! O H Eι ι< U tι ft O CI D (( »l ti (t D H J (( J > > O ιq c501 Λ C, ci t5 H Λ κ! 00 <ι: tll tn H Eι μH3 ϋ H tll O t3 Eι Eι (lι CI [lι J Eι > c< <( ft tι D Cl > > Pro 186 A A -0.12 -0.10 * 0.30 0.33 Ala 187 A A -0.63 -0.10 * 0.30 0.76 Leu 188 A A -0.93 -0.10 * 0.30 0.76 Lys 189 A A -0.97 -0.36 * F 0.45 0.66 Glu 190 A A -0.70 -0.10 . 0.30 0.46 Val 191 A A -0.49 -0.10 0.30 0.56 Ser 192 A A -0.49 -0.79 0.60 0.47 He 193 A A 0.32 -0.29 0.30 0.27 Ala 194 A A -0.07 -0.29 0.30 0.61 Asp 195 A 1f . -0.88 -0.50 0.70 0.45 Ala 196 A 1 P . -0.72 -0.20 F 0.85 0.53 Asp 197 A 1r . -1.02 -0.10 F 0.85 0.46 Gly 198 A 1 1 . -0.990.01 * 0.10 0.27 Leu 199 A B -0.710.66 * -0.600.20 Phe 200 A B -1.02 0.64 * -0.600.17 Met 201 A B -1.021.13 * -0.60 0.25 Val 202 A B -1.881.20 -0.60 0.31 Thr 203 A B -2.421.16 -0.600.26 Thr 204 A B -2.501.06 * * -0.600.19 Ala 205 A B -1.691.13 * * -0.600.18 Val 206 A B -1.090.49 . * -0.600.24 He 207 A B -0.190.00 * -0.30 0.28 He 208 A B -0.12 -0.49 * 0.53 0.55 Arg 209 A B -0.67 -0.23 0.91 1.15 Asp 210 B T 0.03 -0.23 1.54 1.22 Lys 211 B T 0.89 -0.91 F 2.22 3.42 Tyr 212 B T 0.92 -1.20 * 2.30 2.80 Val 213 B T 1.51 -0.56 * * 2.07 1.25 Arg 214 B T 0.73 -0.17 * 1.39 0.84 Asn 215 T r . 0.43 0.40 * 0.66 0.29 Val 216 I 3 f . -0.470.03 * 0.33 0.52 Ser 217 T r . -0.220.03 * 0.50 0.20 Cys 218 T r . 0.63 0.43 * 0.20 0.20 Ser 219 •T T . 0.21 0.43 * * 0.20 0.42 Val 220 T T . -0.600.27 * * 0.50 0.46 Asn 221 T T . -0.560.57 . * F 0.35 0.70 Asn 222 1 [ • C -0.600.69 F 0.15 0.43 Thr 223 2 k B C 0.07 0.73 F -0.250.58 Leu 224 2 \ B C 0.37 0.49 F -0.25 0.62 Leu 225 2 2 \ B 1.27 0.09 F -0.150.67 Gly 226 1 \ 2 \ B 1.27 -0.31 F 0.45 0.93 Gin 227 2 2 s. 0.96 -0.80 F 0.90 1.94 Glu 228 1 \ 2 k 0.41 -1.00 F 0.90 3.40 Lys 229 ϊ 2i B 0.33 -1.04 F 0.90 2.55 Glu 230 ; 2 \ B 0.44 -0.79 F 0.90 1.03 Thr 231 1 \ 2i B -0.10 -0.40 F 0.45 0.52 Val 232 2 2 I B -0.310.29 -0.30 0.18 He 233 1 K 2i B -0.310.71 -0.600.16 Phe 234 ; B -0.660.71 * -0.60 0.19 He 235 2 r r . -1.360.61 * -0.20 0.35 Pro 236 2 1r . -1.640.76 . F -0.050.43 Glu 237 T 1 [ • . -1.000.69 . F 0.35 0.49 Ser 238 T n ! . -0.410.33 . F 0.80 1.09 Phe 239 C -0.30 0.03 . 0.10 0.94 Met 240 r f C 0.29 0.10 * 0.30 0.55 Pro 241 V C 0.29 0.49 * F 0.15 0.55 Ser 242 r r P . 0.00 0.53 * F 0.35 0.98 Ala 243 C C -0.30 0.66 . F 0.30 1.05 Ser 244 D C -0.46 0.66 F 0.15 0.67 Pro 245 2 V . -0.44 0.87 -0.200.37 Trp 246 2 \ r . -1.040.99 -0.20 0.37 Met 247 2 \ r . -1.331.17 -0.20 0.23 Val 248 ; B -1.601.29 -0.60 0.15 Ala 249 2 \ B -2.191.50 -0.60 0.11 Leu 250 2 B -2.791.27 -0.60 0.07 Ala 251 2 \ B -2.811.34 -0.60 0.08 Val 252 ; \ B -2.801.19 -0.60 0.12 He 253 ; \. B -2.241.19 -0.60 0.14 Leu 254 2 \ B -1.870.89 -0.60 0.19 Thr 255 2 B -1.340.81 -0.60 0.40 Ala 256 2. B -1.361.09 -0.60 0.60 Ser 257 r C -1.361.01 I 0.15 0.72 Pro 258 1 Γ [ • . -0.770.97 0.20 0.37 o t o ιn ι o o H ∞ o o tΛ H H CM rO CO ro ro r- CM H H H O O H CM H H © O O O CM U) O O O O O r o c D • O O H O I 1 O I O O O O U α. * * * * * * * * * * σi D H H r ro ^ H H H H ω ^ r uD jo co co H H H H r rt ro ro r~ cn n o r^ r ■ sf ro ro r^ r- o o o o o cn r- ^f o ω r<ι m M C CM co ω co co co ιn t n c c^ m o 'ζt< ^ o r t *=? co cn o ro oi o o » r~ r~ o- ro σ m O O ι-i rt rt rt rt o o O O O rt rt rt rt rt rt rt rt rt O • O O Q O rt rt rt rt rt rt rt rt rt rt rt rt rt O rt O I I t i i o o m L O I rf!ri!ri!ri!ri!ri!ri!ri! ri] ri! ri! ri; ri; ri! ri! ri! ri! ri; ri! ι ri: ri! rij 90 IΛ o et ft ft ft ft et et et et et ft et et ft et ft et ft ft ft et ft ft et ft ft ft et ft ft et et ft ft et ft ft ft et o o cn o ri j r ^ ιn ιc ι ∞ cn o ri oι θ '* u) t^ ∞ n o ri r f -i vD r^ ∞ n o ri ι r M' in iD r^ ∞ o ri o ^ ιn u) i^ ∞ ι o iD ω ιo co iD iø !o ω iD r^ r^ r ι r t r^ r r^ co rø ∞ ra ω rø ∞ ∞ ω rø n c c cn σι c o^ l M t M J l J C J CN CN C^ i r^ OI CN I M J J OI OJ C^ l c^ M tN OI rq C I l Ot cN l I ϊ ^ & J H 4J 1H H (U 3 llH » () « « 4J I(H h (l ll ll « ll ll 3 [l (II 3 » ll « ll llH 3 (! 3 il « 3 « l) f; !l 3 β 3 » π) 1) » Λ * H » ri Λ Λ rl ri Λ Φ ri «S φ t-t N i ri ι >, <D r-l ri , , H ι rt! ri ri ri H NH ri rl H H 0) ri ri Eι S > tO S Eι > H J rt: > ft H H ft g cn H U U H i-J. ,-] J O ri: U i-l i-i: H hq i-l O 0 t_i 0 His 332 A A 0.63 -0.40 . F 1.16 1.00 Pro 333 A A 0.03 0.39 . F 0.13 0.60 Glu 334 A A -0.270.59 . -0.600.49 Leu 335 A A 0.04 0.47 . * -0.600.48 Phe 336 A A 0.63 -0.03 . * 0.30 0.54 Leu 337 A A 0.78 -0.46 * 0.30 0.52 Ser 338 A A 1.10 -0.46 * F 0.94 1.24 Glu 339 A A 0.80 -1.14 * F 1.58 2.81 Asp 340 A T 0.76 -1.54 * * F 2.32 4.57 Arg 341 A T 1.57 -1.59 * F 2.66 2.53 Arg 342 T T 2.49 -1.97 * F 3.40 2.86 Ser 343 T T 2.44 -1.97 * F 3.06 3.36 Val 344 T 2.23 -1.54 * F 2.86 1.70 Arg 345 T 1.99 -1.11 * * F 2.86 1.34 Arg 346 T 1.99 -0.36 * F 2.56 1.57 Gly 347 T C 1.88 -0.74 * * F 2.86 4.13 Pro 348 T T 2.29 -0.99 * * F 3.40 3.65 Tyr 349 T T 2.29 -0.99 * * F 3.06 3.65 Arg 350 T T 1.97 -0.34 . * F 2.42 2.74 Gin 351 B B 1.86 -0.34 . * F 1.28 2.74 Arg 352 B B 2.20 -0.77 . * F 1.24 2.92 Val 353 B C 2.20 -1.13 . * F 1.10 2.40 Pro 354 B C 2.44 -0.70 * * F 1.44 2.14 Asp 355 C 2.44 -1.10 * * F 1.98 1.89 Asn 356 T C 1.74 -1.10 * * F 2.52 4.99 Pro 357 T C 1.63 -0.96 * * F 2.86 2.80 Glu 358 1 ! T 2.19 -1.39 * * F 3.40 2.80 Arg 359 1 C T 2.40 -1.00 * * F 3.06 2.33 Phe 360 1f T 2.19 -1.00 * * F 2.72 2.61 Asp 361 1 [ ■ T 1.52 -1.00 . * F 2.38 2.33 Ser 362 1 r. _ 0.88 -0.43 * * F 1.59 0.64 Gin 363 T C 0.07 0.21 * * F 0.45 0.55 Pro 364 B 1 • -0.390.11 . * F 0.25 0.27 Cys 365 B 1r 0.02 0.54 . * -0.200.20 Val 366 B C 0.02 1.07 . -0.40 0.12 Leu 367 B C 0.02 0.67 . -0.400.14 Gly 368 B 1 -0.680.63 . -0.200.34 Trp 369 A -1.060.84 . -0.40 0.40 Glu 370 A -0.690.70 . -0.40 0.48 Ser 371 A -0.180.40 . -0.400.66 Phe 372 A 0.68 0.40 . -0.12 0.62 Ala 373 A T 0.99 -0.51 . F 1 ' .71 0.71 Ser 374 1 C T 1.03 -0.01 . F 2.09 0.72 Gly 375 ϊ T 1.14 0.36 . F 1.92 1.31 Lys 376 1 [ ■ T 1.10 -0.43 . J t F 2.80 2.54 His 377 c 1.80 -0.50 . ■ > ' F 2.12 1.87 Tyr 378 T c 1 1.69 -0.49 . *t F 2.04 3.05 Arg 379 1r T 1.68 -0.13 * t F 1.96 1.32 Gly 380 1 [ ■ T 2.02 0.36 * v fc F 1.08 1.40 Asn 381 1r T 1.69 -0.14 * fc F 1.40 1.55 Phe 382 c 1.38 0.01 . fc F 0.49 0.83 Thr 383 c 1.41 0.44 . fc F 0.43 0.83 Glu 384 0c 0.99 0.44 . J F 0.87 0.80 Trp 385 1 ? 1.44 0.53 . fc F 1.26 1.33 Gly 386 T ( : 0.86 -0.26 . fc F 2.40 1.81 Pro 387 T c 1.31 -0.24 * F 2.16 1.05 Thr 388 T c : 1.73 0.51 * F 1.02 1.57 Arg 389 T c 0.84 -0.40 * F 1.58 3.11 Ala 390 B 1 1.13 -0.14 * 1.09 1.41 Tyr 391 B 1 ! 1.18 -0.17 * 0.85 1.57 Arg 392 B 1 0.58 -0.27 . 0.85 1.07 He 393 B 1 P 0.89 0.41 . -0.200.88 Asn 394 B πf 0.48 -0.09 * 0.70 0.93 Ser 395 1 P 1.07 -0.46 * fc F 1.05 0.64 Leu 396 1c 1.10 -0.06 . fc F 1.54 1.58 Asp 397 π.c 0.32 -0.31 * F 1.88 1.52 Ser 398 1c 1.32 -0.14 * F 2.07 0.61 Gin 399 T c 1.37 -0.53 * F 2.86 1.44 Pro 400 1r T 1.46 -1.21 * F 3.40 1.73 Cys 401 1 T 1.98 -0.79 * F 3.06 1.99 Arg 402 1 [ . τ 1.77 -0.26 * F 2.42 1.21 Lys 403 1 1.77 -0.23 * F 1.88 1.21 Pro 404 1 " 1.77 -0.27 * F 1.54 3.03 0000000000000 O O O O O O O O O OO OO O OO O O rt rt rt O O O O OO OO O O O O O 1 o o o o o * * * * * * * * * * * • * * * * ** * * * * * * ri > et ft ti et rij rij rij rij ril rij ril ril ril ril ri! ri Gin 17 B B 0.14 0.04 * * F -0.150.68 Lys 18 B B -0.210.04 . * F 0.00 1.39 He 19 B B 0.10 0.14 . * . -0.300.60 Phe 20 B B 0.40 0.14 . * . -0.300.58 Thr 21 B B -0.240.24 . * . -0.300.29 Phe 22 B B -0.94 0.86 . -0.600.41 Asp 23 B B -1.290.96 . -0.600.41 Ala 24 2i -0.710.56 . * . -0.400.38 Met 25 2i -0.010.56 . * . -0.400.64 Phe 26 1 . 0.06 0.17 . * . -0.100.62 Ser 27 2 . 1 ! . 0.46 0.93 . * . -0.200.96 Thr 28 2 . 1 [! . 0.42 0.81 . -0.051.30 Asn 29 1 [ ■ C 0.41 0.70 . 0.15 2.04 Tyr 30 1 C C 1.01 0.53 . 0.15 1.50 Ser 31 C 1.71 0.14 . 0.25 1.81 His 32 2 1 1.77 0.06 . 0.05 1.81 Met 33 1 I 2.19 0.41 . -0.251.81 Glu 34 2 I 2.23 -0.34 . * . 0.65 2.64 Asn 35 2i 1 ! . 2.59 -0.73 . 1.15 3.88 Tyr 36 2 I T . 2.89 -1.23 . * F 1.30 7.67 Arg 37 2 I 1f . 2.92 -1.84 . * F 1.30 7.67 Lys 38 2 I 1 C . 2.71 -1.84 . * F 1.30 7.97 Arg 39 2 I 1.86 -1.56 . * F 1.10 4.19 Glu 40 } I 1.61 -1.67 . * F 1.10 1.59 Asp 41 Ξ 3 B 1.86 -0.91 . * F 0.90 1.25 Leu 42 I 3 B 1.44 -0.51 . * . 0.75 1.10 Val 43 I 3 B 1.09 -0.13 . 0.30 0.85 Tyr 44 Ξ 3 B 0.12 0.36 * * . -0.300.74 Gin 45 I 3 B 0.23 1.00 * * F -0.45 0.66 Ser 46 I 3 B -0.580.31 * * F 0.00 1.75 Thr 47 I 3 B 0.02 0.36 * * F -0.15 0.92 Val 48 I 3 B 0.88 0.03 * * F -0.150.82 Arg 49 I 3 B 0.27 -0.37 . * . 0.45 1.06 Leu 50 I 3 B 0.38 -0.11 . * ' . 0.30 0.55 Pro 51 I 3 B -0.21 -0.60 . 1k . 0.75 1.44 Glu 52 I 3 B -0.20 -0.56 . * . 0.60 0.52 Val 53 I 3 B 0.66 -0.17 . * . 0.61 0.84 Arg 54 I 3 B 0.54 -0.86 . ι * . 1.22 0.91 He 55 I 3 B 1.01 -0.89 . * F 1.68 0.84 Ser 56 T T . 1.01 -0.46 * * F 2.64 1.12 Asp 57 T T . 0.77 -0.67 * * F 3.10 0.88 Asn 58 1f C 1.62 0.09 * J * F 1.84 1.98 Gly 59 T C 0.84 -0.60 * * F 2.43 2.56 Pro 60 T 1.70 -0.41 . * ' F 1.67 0.82 Tyr 61 T 1.14 0.09 . 0.61 0.69 Glu 62 I 3 B 0.80 0.33 . ■ * * . -0.30 0.52 Cys 63 I 3 B -0.090.33 . s . -0.30 0.33 His 64 I 3 B 0.01 0.59 . -0.60 0.15 Val 65 I 3 B 0.22 0.59 . • < 6 . -0.600.13 Gly 66 I 3 B 0.58 0.59 * * . -0.60 0.42 He 67 I 3 B -0.010.01 * j 1 . -0.30 0.60 Tyr 68 A I 3 0.34 0.01 * ■ > * . -0.300.82 Asp 69 2 *. A 0.49 -0.14 * F 0.60 1.20 Arg 70 1i. A 1.34 -0.57 * F 0.90 3.35 Ala 71 2 V A 1.73 -1.26 * F 0.90 3.71 Thr 72 2 A 1.77 -2.01 * F 0.90 4.44 Arg 73 2 A 1.16 -1.37 * F 0.90 1.68 Glu 74 ;i A B 0.34 -0.73 * F 0.90 1.24 Lys 75 A I 3 B -0.36 -0.54 * F 0.75 0.71 Val 76 A I 3 B -0.07 -0.53 . 0.60 0.36 Val 77 A ϊ 3 B -0.10 -0.14 . * . 0.30 0.28 Leu 78 A I 3 B -0.210.29 . * - . -0.30 0.14 Ala 79 I 3 P . -1.100.69 * -0.20 0.30 Ser 80 2 \ 1f . -1.84 0.73 * F -0.05 0.29 Gly 81 2 1 ? . -1.80 0.87 . v " F -0.05 0.30 Asn 82 2 . [ ■ . -0.94 0.87 . * . -0.20 0.24 He 83 I 3 B -0.990.77 . " . -0.600.29 Phe 84 I 3 B -1.001.03 . " . -0.60 0.22 Leu 85 I 3 B -1.291.21 . * * . -0.60 0.14 Asn 86 I 3 B -1.161.31 * j * . -0.60 0.20 Val 87 I 3 B -1.371.06 . J * . -0.60 0.35 Met 88 £ 3 B -0.790.70 . -0.60 0.65 Ala 89 B C -0.390.50 . -0.40 0.59 C o Cn En Cn En Cn Cn En En Cn En Cn En En Cn En Cn En Cn Cn En En En Cn En Cn En En Cn Cn en o cn r D CD co vj H r-i o rt ro ro n ro o is rt ro H c cD o ro H '^ r cD O r^ vo o O '^ n '^ O rt - rt *4* IS co rn ro cM ro o rθ 'φ '=j* cn ro ro r-- rθ ro *- o H θ ro ro l o o ro o • o ro ro CM CM CM CM • cM r \D cn c tn H o !S H r r ' O o • * • • • . σ • • • • • • ■ O O H H H H O O O • - O • ' O O O O O O O O O H H O O I O O I O O O O O O O I O O O O O H rt rt O O O H O O l l l I l l l l l O O I I O O O O I I r- r r*- cM CM o c n o o H u> H r CM n o\ r CO CM CM ^O O rt [** r* is ■ ^ -# -* t~- r- co ra ∞ in t^ in o o ^ ^ r^ ∞ r^ ω r^ vo o ^ r L ∞ c ∞ LO c o • • • • o r o r*- cn Lθ τjf c o o H * H ** r- ccn rroo c iinn coo ts '3 , ' * " - ro _- . . . - r* H r υ) r ^ o *" ^ "Φ .. Ln. .ι/ι τi Dθ O O O O O H O O O O O O H H H CM H i 1 I I O O H H O O H H H O I I I I I I I rt rt rt o O OO HH HH HH O U U CQ CQ CQ CQ CQ CQ CQ CQ CQ CQ CQ CQ CQ - CQ CQ CQ et ft ft ft ft et ft et ri! rt! «! ri! ft ft ft ft co (Λ o ri π iΛ ι/HD Φ iβ H ri ri rl ri 0 lI tI) ll 3 ll Λ >l ll ll ) Leu 163 A B 0.26 -0.74 * * 0.60 0.93 His 164 A i \ 0.96 -0.06 * 0.30 0.57 Arg 165 A t \ 0.84 -0.44 * F 0.60 1.16 Asp 166 A i \ 0.83 -1.13 * F 0.90 2.35 Leu 167 A I \ 1.69 -1.33 * F 0.90 2.49 Asp 168 A T . 1.90 -1.83 * F 1.30 2.54 Asp 169 A T . 1.93 -1.21 . F 1.30 1.51 Thr 170 A T . 1.87 -0.81 . F 1.30 3.16 Lys 171 A T . 1.57 -1.50 . F 1.30 3.79 Met 172 A 2 \ 1.57 -1.11 . F 0.90 3.04 Gin 173 A i \ 1.27 -0.43 . * F 0.60 1.74 Lys 174 A 1 \ 0.46 -0.53 * fc F 0.90 1.16 Ser 175 A 2 \ -0.04 0.16 * F -0.150.97 Leu 176 2 \ B -0.090.23 * -0.300.46 Ser 177 2 \ B -0.08 -0.17 . 0.30 0.39 Leu 178 2 \ B -0.080.33 . -0.300.29 Leu 179 A 2i. -0.12 -0.06 * * 0.30 0.61 Asp 180 A i 0.29 -0.34 * * 0.64 0.73 Ala 181 A 2 \ 0.76 -0.73 * " F 1.58 1.74 Glu 182 A 2 \ 0.71 -0.99 * F 1.92 2.09 Asn 183 T T . 1.63 -1.24 * F 3.06 1.24 Arg 184 T T . 2.23 -1.24 * fc F 3.40 2.40 Gly 185 T T . 1.99 -1.31 * F 3.06 2.14 Gly 186 T 1f . 2.27 -0.56 * F 2.72 2.09 Arg 187 1 ? C 2.27 -0.47 * F 1.88 1.54 Pro 188 1 C 2.38 -0.47 * F 1.54 2.69 Tyr 189 B 1f . 2.06 -0.90 * F 1.64 5.33 Thr 190 B 1 ? . 2.10 -0.90 * F 1.98 4.20 Glu 191 B 2.56 -0.51 * F 2.12 3.64 Arg 192 B r [ ■ . 2.10 -0.94 * F 2.66 4.55 Pro 193 _ P . 1.50 -1.27 * F 3.40 3.12 Ser 194 T [ • . 1.43 -1.07 * F 3.06 1.49 Arg 195 T 1f . 1.53 -0.59 * F 2.92 1.10 Gly 196 T 1.53 -0.16 * F 2.28 1.10 Leu 197 C 1.21 -0.59 * F 2.24 1.37 Thr 198 C 1.42 -0.54 * * F 2.10 1.08 Pro 199 C 0.83 -0.14 * F 2.00 1.75 Asp 200 T C -0.090.11 * * F 1.40 1.49 Pro 201 B 1 P . -0.56 0.11 . * F 0.85 0.85 Asn 202 B 1 ? . 0.26 0.31 . * 0.50 0.45 He 203 B 1 0.36 0.29 . * 0.30 0.47 Leu 204 B 0.26 0.71 . * -0.400.47 Leu 205 B -0.06 0.77 . * -0.400.42 Gin 206 B 1 0.16 0.86 . * F -0.050.87 Pro 207 B 1 ? . 0.16 0.17 . * F 0.66 1.83 Thr 208 1 C 0.16 -0.11 . F 1.72 3.56 Thr 209 1 C 0.76 -0.11 * F 1.98 1.44 Glu 210 C 1.57 -0.09 * F 2.04 1.44 Asn 211 C 1.26 -0.51 * F 2.60 1.73 He 212 B B 0.61 -0.51 * F 1.94 1.73 Pro 213 B B 0.07 -0.36 * F 1.23 0.74 Glu 214 B B 0.08 0.29 * F 0.37 0.34 Thr 215 B B 0.19 0.27 . F 0.11 0.65 Val 216 B B 0.19 -0.41 * F 0.45 0.83 Val 217 B B 0.38 -0.84 . 0.60 0.83 Ser 218 B 0.38 -0.06 * 0.50 0.50 Arg 219 B 0.49 -0.11 * ■ *t F 0.80 1.04 Glu 220 I 0.51 -0.76 * F 1.10 2.73 Phe 221 I \ 1 0.51 -0.49 * F 1.00 2.14 Pro 222 I I 1 1.33 -0.23 * F 0.85 0.81 Arg 223 T 1 1.33 0.27 * 0.50 0.64 Trp 224 T 1 0.63 0.66 * 0.20 0.99 Val 225 B C 0.63 0.37 * -0.100.65 His 226 B C 1.12 -0.06 * 0.50 0.57 Ser 227 B C 1.02 0.37 * i -0.100.84 Ala 228 C 0.67 -0.06 * F 1.00 1.63 Glu 229 1 C 0.26 0.06 . F 0.60 1.88 Pro 230 T 1 0.30 0.34 . * F 0.80 1.21 Thr 231 T 1 0.44 0.64 . J F 0.35 0.99 Tyr 232 I . 1 0.71 0.14 . * 0.42 1.12 Phe 233 B B 1.00 0.64 * -0.260.99 Leu 234 B B 1.11 0.60 * -0.090.92 Arg 235 B Ii 1.01 0.11 * 0.53 1.15 Cn En En En En Cn En Cn Pn En n En En En En En En En En Cn En • En Cn Cn * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * «j-> H τ-ι , ■? o o H tn co cn ro co H O <* <* ooo OOOOO r- ro ri r^ co M ^ D r ID CN CO ri M O M * CN t- ri •* ri cn n ri ω co r- iH r co r- c 'tf D cn cn cn ro H ro u) O H co cn co o M< ro <# ro <φ o io ^ iD iD co ro ri r- r ri co ri o o ri ro ro <tf <# H θ < CM co ιn σ\ co ro cD ro ri LO ri ri O O O O ' O OO o o i σ O O O O I O O I I l O I I 1 1 O O ri U U CJ • u u u u u u u u CQ ca ca co cQ ca co ro ca ca cQ ca m m co cq CQ cq co m m cQ CQ co m co ca ca co co ca ro ca ca ca ca ca ca ca ca ca ca ca ca ca ca ca ft et ft ft ft ft ft ft ft et ft ft ft ft ft ft et ft ft ft r- 90 IΛ ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft ft © o ιo r~ co cn o ri cN ro ιι ιn iD θ- o ri i ro ^ ιn ιo t^ ω cn o ri CN cθ 'φ in iD t^ ω cn o ri c^ ro ^ ιn 'D r^ ∞ m o ri oι ro ^ ιn iD i^ co cn o ri θ] ro ^ ιn D co cn o ri CN ro -* ιn ιo r- ω ιn ιn ιn ιn lΛ ιn ln lΛ ιrι ιn lD D lo ιo ^D ^D lD Vo ω ^tι ^ ^ ^ ^ ^ ω ω ra tD «ι ω ω co co ro (Λ cιι ol (Λ m σl σl (Jl (Λ oι o o o o o o o o o ro ro ro ro ro ro ro ro tji h o iJ h ft N H a ri tn iil s S h ft h j ri o cl ii ft C S ii S iii k ii S H iii iii o ii j h ^ o iJ fi e s ri ij S H ii O B O ii iJ H ii k O k tii * rjir-t , p, <-i oi ■ H l) H J5 J( » » « ri Λ lll H II) H rl » « Λ k Λ « « H H ri « n H ri (I Λ II |>ιH II 1 .ri k H « (J « H « H H H I) Λ ll ll H l) >,ri k ri β « Λ H « lj ri μ il ri - Λ K H H ffi 0 EH rJj CΛ Ca rt! U H > O > rt! ri! ι-5 ιJ B EH EH j ri! Clj O H ri! ri! D rt! ιJ I-ι ω U O > ι-3 ffi O CM O O CO O o O O O O t-1 o o O O O O O OH OO OO O O O O O O H O O O O O O O OH O O O O O O oo oo o o o o oo o o o o o o co cn y> ro ro H rt U txi Cn En En Cn Cn En En En En En En En En En En En 1-n tn En En En En Cn En En Cn Cn En * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * cn rt rt •< ' Φ .S- Cor r τ-l OOOOOOOOOOO O HHOOOOO o oooo I o o o o o o o o I oo oo o o o o i oo o i o o o oo o o o o o σ oo ri! <; o ^ t f i <; <; rfi rfi i rf rfi ri! o O c o ri i r ^ i i r^ ∞ cn o ri i ro ^ Lo iD t^ ∞ c o ri c r ^ i n iD r^ ∞ c o ri i ^ i io o^ ω c o ri oq ^ i^ o ri ri ri ri ri ri ri ri ri ri t c^ cN i oι oι ι ι « rN o ro o ro r ro ro ro o r ^ '* ^ '* ^ -* '* ^ ^ ^ m ι ι ιn ιn m ιn w ro ro ro ro n ro n ro ro ro ro ro ro ro ro ro ro ro ro ro ro n n ro ro ro ro ro ro n ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro ro 3 ri 1 . « fl fi 3 ri D O 3 0 3 Φ ri Φ 3 d O td -ri ri Λ ri co ri t Λ i Φ ri rt Λ ri ω J > K t) ft O (t! D > ft Iiι t5 0ι ι-l H > αι rιj ri! iι Asn 382 T C 1.26 -0.66 F 2.18 1.95 He 383 T C 1.64 -0.23 F 2.22 1.20 Pro 384 T C 1.64 -0.14 * F 2.56 1.12 Arg 385 T T 1.64 -0.57 * F 3.40 1.20 Gly 386 B T 1.56 -0.97 * F 2.66 2.87 Thr 387 B T 1.56 -1.27 * F 2.63 2.49 Glu 388 B 2.10 -1.30 * F 2.40 2.04 Asp 389 T T 2.01 -0.87 * * F 2.97 2.04 Ser 390 T T 1.01 -0.91 * * F 2.94 1.89 Asn 391 T T 1.01 -0.71 F 3.10 0.77 Gly 392 T T 1.11 -0.29 F 2.49 0.45 Ser 393 T 0.80 0.14 F 1.38 0.52 He 394 C 0.46 0.24 F 0.87 0.47 Gly 395 T C 0.17 0.27 * F 0.76 0.47 Pro 396 T C 0.28 0.34 * * F 0.45 0.35 Thr 397 I 3 T -0.19 -0.04 * * F 0.85 0.99 Gly 398 I 3 T -0.20 -0.04 * * F 0.85 0.83 Ala 399 £ 3 B -0.12 0.01 * * F -0.15 0.77 Arg 400 B B -0.63 0.27 * -0.30 0.44 Leu 401 I 3 B -1.23 0.43 * -0.60 0.33 Thr 402 I 3 B -1.51 0.69 * -0.60 0.27 Leu 403 I 3 B -1.98 0.69 * -0.60 0.14 Val 404 I 3 B -1.70 1.37 * -0.60 0.14 Leu 405 2 i B -2.67 1.17 * -0.60 0.14 Ala 406 2 s. B -2.74 1.33 -0.60 0.13 Leu 407 2 \ B -3.24 1.33 -0.60 0.12 Thr 408 2 \. B -2.43 1.37 * -0.60 0.12 Val 409 ; s. B -2.39 0.69 * -0.60 0.20 He 410 1 B -1.89 0.87 * -0.60 0.20 Leu 411 2 \. B -1.69 0.67 * -0.60 0.20 Glu 412 2 s. B -1.27 0.61 * -0.60 0.35 Leu 413 2i B -1.34 0.40 -0.30 0.64 Thr 414 2 I I 3 -0.88 0.14 -0.30 0.99 Table 8 II III IV VI VII VIII IX XI XII XIII XIV Met 1 A 2 s. -0.04 -0.17 0.45 1.00 Glu 2 A 2 \ -0.24 -0.10 0.30 0.79 Pro 3 A 2 s. -0.67 -0.03 0.30 0.63 Ala 4 A 2 i -0.310.23 * -0.300.52 Ala 5 A 2 s. -0.620.11 * -0.300.41 Ala 6 A 2 -0.320.90 -0.600.23 Leu 7 A 2 -0.210.86 * -0.600.30 His 8 A 2 -0.210.36 * -0.300.59 Phe 9 A 2 -0.210.29 * -0.300.90 Ser 10 A 2 i 0.08 0.29 * -0.151.11 Arg 11 A T -0.14 -0.01 * F 1.00 1.09 Pro 12 A T -0.140.17 * F 0.40 1.04 Ala 13 A T -0.920.07 * F 0.25 0.64 Ser 14 A T -1.030.37 * 0.10 0.27 Leu 15 A B -1.541.06 * -0.600.14 Leu 16 A B -1.961.31 . ■ > -0.600.12 Leu 17 A B -2.561.20 -0.600.12 Leu 18 A B -2.631.50 -0.600.12 Leu 19 A B -2.921.39 -0.600.08 Ser 20 A B -2.921.20 -0.600.09 Leu 21 A B -2.971.20 -0.600.09 Cys 22 A B -2.461.16 * -0.600.08 Ala 23 A B -2.230.86 * -0.600.08 Leu 24 A B -1.420.97 * -0.600.10 Val 25 A B -1.980.69 * -0.600.33 Ser 26 A B -1.480.76 * -0.600.24 Ala 27 B B -1.670.74 * -0.600.43 Gin 28 B B -1.930.70 * -0.600.43 Val 29 B B -1.470.70 * -0.600.24 Thr 30 B B -0.820.74 * -0.600.23 Val 31 B B -0.830.67 * -0.600.21 Val 32 B B -0.240.76 * -0.600.40 Gly 33 B 1f -0.460.11 I 0.25 0.47 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * H H ^ ^ H H rTJ ^ H H H O rt rt o o o o o o o o o o o o oo o I O O O O H O O OO H H O O O O I 1 I 1 I I I I I ro is ^ rt μ H O O O OO O O O O O O I ri; <; F3i rfj ri; <; <j rtj rfl rf! rf! ril fa; * * * * * * * * * * * * * * ri o ri o ri ir ri ri r~ ri ri o ri ri r- ι-~ ri ri ri ri ri ri i ri ri X o r o o o ri ri ri ri ri o o ri ri r- ri ri ri * •* •* r- ri ri r~ o r is cn ^ •* cn t rt rt rt o o ri ri ri CN CN CN OI Ol ri ri Ol ri O EH m ca co m to m co ft ft ft ft et ft ft ft ft ft ft et ft H ri! ri! rt! ri! rt! rt; ri! ri! ri! ri; 90 IΛ ft ft ft ft ft ft ft ft ft et et ft ril rij rij rij rtl rij rij rii ril ri! o o r^ ω cn o ri CN rθ 'φ in D r^ co cn o ri CN co ϊ # tn ιo r^ co cn o ri tN ro ^ ιn iD i co cn o ri tN cθ '^ ιn ιo O O ri oriorioriri riririri riririri riririririririririricriN θrii oriιrioιrioιrioι oriι criN triNrii rrio rrioriroriro rrio rrio rrio rrio rrio rriθ 'ri*ri-φri"3i ^ri'ri* <riaιri< riririririririririririri ri o o- ri ri ri ri iti S Φ co β ri k p ft d ^ ^ d m tu p p ^ ji ^ tn d S i β Φ S ω S ri ri tti i p m d O p iH i Φ O O fi ^ ^ d iH S 3 3 3 3 ri φ ri ri -ri CO tβ Λ ri ri Ol tO ri ri ^ri ^JTl ri ri ri M φ in ri ri ri φ -ri φ t td ri Ol ri -ri m Φ φ ri ri iJ ri ri JIi Φ Φ Φ es 3 <; μi H H |i! (i! > tι ι< B (( j< t) H ri O ϋ H Iiι O t) t5 ι< tl O (< tl rt! H Λ 5: J > > (< (< o K ιi! ft ύ tll ti H ft H ft B O [ι J C0 J H & > Leu 14 A . . . C -0.180.30 F 0.05 0.41 Gly 15 T T . -0.17 0.01 * F 0.65 0.86 Ser 16 T C 0.64 0.24 * . F 0.45 0.45 Gly 17 T C 0.60 0.64 * . F 0.15 0.95 Gin 18 B . . T . -0.14 0.60 * . F -0.05 0.71 Trp 19 B B 0.32 0.96 -0.60 0.46 Gin 20 B B 0.46 1.00 * -0.60 0.46 Val 21 B B 0.76 1.00 -0.60 0.41 Phe 22 B B 1.14 0.60 -0.30 0.65 Gly 23 T C 0.93 -0.31 1.50 0.75 Pro 24 T T . 0.37 -0.29 F 2.30 1.57 Asp 25 T C 0.37 -0.29 F 2.40 1.34 Lys 26 T C 0.63 -0.67 * . F 3.00 2.35 Pro 27 B C 0.52 -0.60 * . F 2.30 1.54 Val 28 B B 0.01 -0.34 * 1.20 0.76 Gin 29 B B -0.12 0.30 * 0.30 0.28 Ala 30 B B -0.12 0.73 -0.30 0.18 Leu 31 B B -0.17 0.30 -0.30 0.42 Val 32 B B -0.54 -0.34 0.30 0.41 Gly 33 A B -0.28 -0.24 F 0.45 0.41 Glu 34 A 1 . . . . -0.98 -0.24 F 0.45 0.50 Asp 35 A 2 . . . -0.69 -0.14 F 0.45 0.58 Ala 36 A I s. -0.54 -0.40 0.30 0.79 Ala 37 A 1 . . B -0.39 -0.26 0.30 0.24 Phe 38 A 2 . . B -0.86 0.53 -0.60 0.13 Ser 39 A 2 ^ . B -1.16 1.21 -0.60 0.10 Cys 40 A 2 . . B -1.37 1.10 -0.60 0.14 Phe 41 A i . . B . -0.73 1.03 -0.60 0.24 Leu 42 1 . . B . C -0.46 0.24 -0.10 0.36 Ser 43 1r C 0.24 0.34 * F 0.45 0.98 Pro 44 1 C C -0.04 0.17 * F 0.60 1.82 Lys 45 1r C 0.62 -0.11 * F 1.20 2.23 Thr 46 A 1r . 0.73 -0.80 * F 1.30 2.88 Asn 47 A 2 . . . . 0.94 -0.69 * o.9σ 1.88 Ala 48 A 2 - 1.24 -0.50 0.30 0.93 Glu 49 A 2 . . . 0.60 -0.50 * 0.45 1.12 Ala 50 A 2 - 0.67 -0.34 * 0.30 0.52 Met 51 A 2 ^ 0.28 -0.74 * * 0.60 1.00 Glu 52 A 2 . -0.42 -0.46 * 0.30 0.50 Val 53 A 2 \. . . . 0.28 0.33 * -0.30 0.43 Arg 54 A 2 1 . . . -0.07 -0.17 * 0.30 0.85 Phe 55 A 2 . . . 0.52 -0.36 * * 0.30 0.48 Phe 56 A 1r . 0.42 0.04 * * 0.25 1.13 Arg 57 A 1r . 0.12 0.19 * * 0.10 0.50 Gly 58 T 1 ? . 0.68 0.57 * . F 0.35 0.77 Gin 59 T 1f . -0.29 0.17 * * F 0.80 1.20 Phe 60 B C -0.44 0.03 * * F 0.05 0.45 Ser 61 B C 0.22 0.67 * * F -0.25 0.34 Ser 62 B B -0.70 0.74 * * -0.60 0.27 Val 63 B B -0.60 1.03 i -0.60 0.25 Val 64 B B -0.49 1.00 ιfc -0.60 0.30 His 65 B B 0.21 0.61 J fc -0.26 0.43 Leu 66 B B 0.17 0.23 * 0.38 0.98 Tyr 67 B . . 1f . 0.51 0.01 J fc 1.27 1.30 Arg 68 T 1 P . 1.37 -0.63 * * . F 3.06 1.92 Asp 69 T 1r . 2.22 -1.13 i " . F 3.40 3.88 Gly 70 T P . 2.04 -1.41 > * - F 3.06 4.29 Lys 71 T 2.16 -1.74 > " . F 2.52 3.39 Asp 72 C 1.80 -0.96 F 1.98 1.76 Gin 73 C 1.69 -0.34 F 1.34 1.76 Pro 74 B 1.09 -0.37 F 0.80 1.52 Phe 75 B 1.22 0.24 -0.10 0.90 Met 76 B 1.18 0.67 ,-0.40 0.80 Gin 77 B 0.93 0.67 -0.40 0.90 Met 78 B 0.93 1.00 ' -0.25 1.63 Pro 79 B 0.80 0.61 'fc * 0.09 2.85 Gin 80 T 1.61 0.43 ■ * t * F 0.98 1.63 Tyr 81 T 1r . 1.90 0.03 * F 1.82 3.23 Gin 82 A 1r . 1.94 -0.10 * F 2.36 3.01 Gly 83 T 1 [• . 1.73 -0.53 * F 3.40 3.48 Arg 84 B C . 1.09 -0.24 * F 2.36 1.83 Thr 85 B 1.13 -0.36 * F 1.90 0.78 Lys 86 B 1.38 -0.76 * F 2.24 1.59 Leu 87 B 1.08 -1.19 * F 2.13 1.35 Val 88 B 0.53 -0.80 * F 2.22 1.26 Lys 89 B . -0.17 -0.60 F 2.30 0.44 Asp 90 B 0.14 -0.10 * F 1.77 0.54 Ser 91 B 1 -0.24 -0.79 * 1.84 1.26 He 92 A ; 0.68 -1.00 * * 1.06 0.62 Ala 93 A J I 0.64 -1.00 * F 0.98 0.73 Glu 94 A I . 0.30 -0.31 * F 0.45 0.38 Gly 95 A 1 -0.51 -0.31 ι * F 0.45 0.73 Arg 96 A J -0.10 -0.31 ■ < * F 0.45 0.60 He 97 A 1 -0.02 -0.81 * F 0.75 0.67 Ser 98 A 1 I 0.57 -0.13 ■ > * 0.30 0.56 Leu 99 A I I 0.57 -0.56 * * 0.60 0.50 Arg 100 A 1 I 0.02 -0.16 J * 0.45 1.14 Leu 101 A 1i. -0.40 -0.16 * * 0.30 0.60 Glu 102 . \. B -0.37 -0.06 * 0.45 1.04 Asn 103 . 1 i B -0.88 -0.10 * 0.30 0.40 He 104 . 1i. B -0.07 0.59 * -0.60 0.40 Thr 105 . 2 I B -0.77 -0.10 0.30 0.38 Val 106 . 2 4. B -0.30 0.40 -0.60 0.24 Leu 107 . 2 . B -1.11 0.43 -0.60 0.34 Asp 108 . 2 V B -1.36 0.43 -0.60 0.19 Ala 109 . 1 . B -0.81 0.70 -0.60 0.41 Gly 110 1f -1.17 0.49 * 0.00 0.49 Leu 111 B 1 C 1 . -0.20 0.37 * 0.10 0.16 Tyr 112 B 1 C . -0.28 0.37 * * 0.10 0.30 Gly 113 B 1f . -0.58 0.56 * -0.20 0.22 Cys 114 B 1 P . -0.29 0.51 * * -0.20 0.35 Arg 115 B B 0.06 0.21 * * -0.30 0.30 He 116 B B 0.57 -0.14 * F 0.45 0.52 Ser 117 B B 0.57 -0.19 * * F 0.76 1.31 Ser 118 B 1 D . 0.67 0.00 * * F 1.32 1.05 Gin 119 B 1 [ • . 1.33 0.76 * F 0.58 2.35 Ser 120 T 1 C . 1.27 0.47 * F 1.14 3.03 Tyr 121 T 1 [ • . 1.57 0.09 F 1.60 4.52 Tyr 122 . 2 I T 0.98 0.20 0.89 2.64 Gin 123 . 2i. B 0.99 0.49 0.03 1.38 Lys 124 . 2 *. B 0.99 1.01 ■ > -0.28 0.93 Ala 125 . 1 . B 0.48 0.26 *fc 0.01 1.02 He 126 . 2 I B 0.72 0.19 * -0.30 0.49 Trp 127 . 2 Si B 0.11 0.19 * -0.30 0.42 Glu 128 A 2s. -0.19 0.83 *fc * -0.60 0.31 Leu 129 A 1 S. -0.82 0.71 J -0.60 0.59 Gin 130 . 2 . B -1.04 0.53 * -0.60 0.57 Val 131 . 1i. B -0.50 0.30 * -0.30 0.27 Ser 132 . 2 C -0.51 0.73 * -0.40 0.33 Ala 133 . ; I C -1.37 0.43 * -0.40 0.25 Leu 134 . 2 . B -0.77 0.67 * -0.60 0.25 Gly 135 . 2i 1 -1.58 0.46 -0.20 0.29 Ser 136 B B -1.61 0.76 -0.60 0.24 Val 137 B B -1.61 0.94 -0.60 0.20 Pro 138 B B -1.91 0.64 -0.60 0.27 Leu 139 B B -1.41 0.90 -0.60 0.14 He 140 B B -1.411.00 -0.60 0.28 Ser 141 B B -1.36 0.79 -0.60 0.18 He 142 B B -1.361.11 * -0.60 0.34 Thr 143 B B -1.14 1.07 ■ >fc -0.60 0.36 Gly 144 B B -0.22 0.39 J -0.04 0.45 Tyr 145 B B 0.67 0.00 * 0.97 1.25 Val 146 B B 0.08 -0.69 ■ * * . I 1.68 1.44 Asp 147 B 1r • 0.97 -0.49 *fc * 2.04 1.02 Arg 148 B 1r • 0.47 -0.51 ■ * * . I 2.60 1.13 Asp 149 B 1 [ ■ • 0.00 -0.59 * " . I 2.34 1.25 He 150 B 1 P • -0.42 -0.54 - i fc 1.78 0.62 Gin 151 . 2 . B 0.43 0.03 * 0.22 0.17 Leu 152 . 2 . B 0.13 0.43 J fc -0.34 0.18 Leu 153 . 2 . B -0.28 0.81 i -0.60 0.34 Cys 154 . 1 . B -0.62 0.51 * -0.60 0.26 Gin 155 . 2 \ T -0.02 0.54 ' k . I -0.05 0.31 Ser 156 T 1r - -0.72 0.77 ' " . I 7 0.35 0.40 Ser 157 T 1 C • -0.12 0.87 ' " . I ? 0.35 0.64 Gly 158 T 1 [ ■ . 0.80 0.73 ' " . I 7 0.35 0.57 Trp 159 [ ■ 1 C • 1.26 0.33 ' * . I ? 0.65 0.84 ri o o o ri O En En En En En En En En En En En En Cn * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * cn o ri ro r ri ri VD io r ιo <# ro ri O f r- ro ro cn cn o cn ro rO 'Φ ^D iD io ro ro ri ri iD ^ ro cn cn ri ro cn cn ri ri Ol Ol CN lO ^ lD rO '* n c ^i ^ cN r^ n i r c c 'Φ 'ϊf o ro r^ r~ cn ro in O O Ol ri ri • IT) CN CN ri • - • ■ ro ro ^ o ri ri ri ^ LO rl ri in cn o σ O o o o o o o o o 1 OO O O O O O I o o o o o I o o o o o o o o ro ro ri co cN CN CN cn co r- o cn ro o H o ^ ro co oi cO ' co co cn o o co ro cN ri r <φ CN ri oι ιn ιn ro o! cn cn ri cN ri ri ^ co co o o co co ιo ιo cn oi oi o oi t- r » ri ri cn o ro κo «tf in ι rH t <tf Ln ιn u-| θ Ln c , ai ri io co CO ' CN CN CN OI ^f ri ■ - ri • CN CN CN O CO n r- ^i* co ro ro cn O O ri ri ri O O ri ri tN ri ri ri ri ri ri ri CN Ol OI OJ ri O I O O O 1 EH CQ a a CQ CQ Ca a CQ CQ rή rή CQ CO ca cO CQ CQ Ca CQ CQ CO CQ CQ rfl CO rO CQ ro CQ ro ro ro to co ca ro co cQ ca co cQ • cQ ca cQ ca ri! et ft et ft et et et et et et et ft et et 90 IΛ o et et ft et ft ft ft ft et ft et • ri! ft ri! ri! ri! ri! rt! ri: ri! ri! ri! ri] rt! ri! ft ft ft © O θ ri CN ro ^ -θ io r^ ∞ cn o ri o! ro ^ ιn D i ∞ cn o ri CN co ^ ιn ιo ∞ cn o ri cN ro ^ ιn ιo t^ ∞ cn o ri ro co ^ tn tD t^ OT ^o ^D ^t3 ^D ^fl ^^) lD ^o ιo ^D ^ ^ ^ ^ ^ oJ m ιϊ) tO (o α) c[^ ιB α) α^ ffl o oι σι tIl Ol σι ol flι m o o o o o o o o o o ^^ H H H ^^ H H ri H H π r^ ^^ N ^ι ^ι « M M oι π ^ , ) f l ι H ri H H ri H ri ri ri ri ri H H H ri H H ri H ri ri ri ri H H ri ri ri H ri H ri ri ri ri ri ri ri ri ri M ( n « M r( n t>i n N M M M M n M ( n r( ri n (i n M n M M M M tιι π « n θ t7i θ tβ to ft ra , θ d Pj 3 ^ ι tjι d ιιi J JJ t l>, 3 Φ ftri 3 Φ ^ 3 M ri d 3 d π! ι Φ to J ω m πi m Λ H μ H Ji ι-l >, Sl ,H μ ri ri ri » « « Λ « ll h Λ » H IH -H ri « fl ll « ri ri « III Λ ll H H ll rf H « ri ll >ι II » H .H H .H « « μ H II H « H * ri ri rHl Λ Λ Λ ri H H » cjj 0< «! ft EH rt; ι-l EH ι-l t_) ft θ θ O ri! ι-| j EH CQ rt! EH ri; ri! S Ca θ J ft ri! > O H ω ι-q EH o o ro cn D '^ o co iD '^ ro ^i ro ^ '^ r^ o t^ c co t- o Mn to oι * « H i» n n o h ri ri ιn o cn o oι t^ o- ri r^ cn o] in ^ι co ro cn o ro υ ) ro ri ri iD ro ro cθ 'φ iD ro o] ri ^ιι ^ , ^i ri oj in o' in ro ^ oi ri o o o o o o o ri o o o ri ri cN CN io oi io co cn o co o o co o o o] Ln oι , ri ri co ι ri co θ ri ^ o o cn ιn vD ^ oα ' cn cn t^ o] θ co ^| i ri '^ ro ro ro ri ro cn ri * ri ri <* o o o o o o o o o o o o o o o o o o o o o o o o o o o o o tn in o in o m t 5 D lD lO lO lD lD lD O D O lO tN Ol Ol Ol lD lD lO lD lD D lD D lD rO lD lD lO ri ri rO ^ Ln ro O i-t in in o o CD o σ in o o o ■# • ID • is is co ro • ro ro r** O o o O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O ' O « o H ri ri ri ri ri rt rt o o i i o o o o U α. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * rs rt rt *ςp rt ri •^ ro r r co D H cn cn c ' KD rt ςμ ^ -^ H r c cn c cn cn ω in H H H H CM CM t^ t^ ∞ Λ ^ ω ^ c H H c o^ ra ^ c co -ςt 1 H H ^ H CO CM CO CO H > rt • • • m ' - o ts co H CM cn cD O H o o cM CM i Lo cn cn co cM ro is r- • • H ^ ro o ro ro is o ri O O O ri O O O O O ri O O O ri ri CN Ol CN Ol OI Ol ri ri ri ri ri ri ri ri O ri O O O O I 1 O O O ri ri ri O O EH EH EH H CQ CQ CQ CQ CO CQ Ca CQ CQ CQ CQ cq cQ ffl cQ m rQ rQ cQ CQ ca cQ ca cQ cQ ca m ca cQ co ra ro cα rQ ca cQ cq cQ co eQ cQ ca cα ca cQ n ril ril ril ril ril ril ril rij ril rij ri! rij ri! ri! rt! ri! ri! ri: ri! rt; ri! ri! rt! ri! ri! ri; ri! rt! ri! ri! ri! ri! et ft ft et ft ft ft ft t et ft ft ft ft ft ft ril rij ril ril ril ril rij ri; o et ft et et ft rt! ft ft ri!rtri!ri!ri!ri!ri!ri!rt!ri;ri!ri!ri!ri;ri!ri!ri! et ft et ft ft ft ft et et ft ri! rt! rt! rt! ri! ri! < ri! rt! ri! ■ ft ft ft o O n ^ - ^ ω σι o ri M m ^ lO lD ffl oι o H n M ^ ιo ιo co (Iι o d N ^ in lD » σι o H M π ^ ιn ^D ^ ω cIι o H ^^ rt ^ u^ ^o ^ ω (I\ o H M ( ^ ιn ιo ^ ω (J o H ^ι m ^ ιn o o ro ro ro ro ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ in in in in in in i in Ln i iD o io io iD iD io iD iD D r- t^ t ^ t^ i^ r^ t ^ r^ t ^ t ^ co ro CN OI OI OJ OI C^ CN OI Ol OI OI Oa Ol CN OJ CN CN CN CN CN OI OI Oi OI OI OJ OI OI CN CN OI r Ol OI CN CN CN CN CN CN OI CN CN CN CN C^ α ω d td iπ- ω ri d 3 ι ΦΦ d3 mω ωto ^, S3 Φ Φ i^ι ΦΦ riri , d3 ttQo φ φ φ μμ. ttαo φ dfl αα ωω φ dβ ttβ« 3a d3 αpj αa mω mθι ωω rato ^ 1 d rt(i d3 dd mm Qpiι rπiiJ mm mto ωω fιdd riri d3 riri 3 Dι 0 3 ^ 'd oι θ m _ . « H ri ϋ ι >ιri « ΛΛHri *ri « >,H fl Λ ll ) Λri ιri riri ri « lll h h ) t ι.riri ririri « - H ^ N.ri ri * ri li il tl lli ri Λrl-ri >l !>ιlll > ll « llt * * * * * * * * * * * * * * * * * * * * * * * * * * * * • * * * * D H o c cn t-i r M CO r <Φ -S o o is r o o o o o o O O O HO O O O O • • o o cn o r^ c co , tø υ ) D D ^ o cD ω «ϊ | H is o ^ c υ? CM '* D ro o o ro rs ro ro vD o ιs r ro ro cn cM in cM CM '* CM VD r H ■ *# ^ O O O O rt rt O rt H H H H CM t-I H CM CM CM H O O I O O rfj rij rij ril rij ril rij ri; oo ( < rfj ' ri! rij rf! rf! rf! rf! ri! ri! ri! ri) ri! rf! ri! idj rij rij o o O o ιs ∞ c H c n < Ln o r^ ω c o H r ^ ιn o r^ ∞ m o H n ^ uι co r o o o o H H H H H H H H H CM CM CM CM CM CM CM C CM CM r ro r ro r r r η ro r ^ ^ ^ ^ ^ ^ ^ ro n ro ro ro ro ro ro ro ro ro ro r ro ro ro ro ro ro ro ro ro ro ro ro ro 2 ω ti rt in oi (ϋ O cj 3 H O ω ti 2 ω tji cu ti ϋ) w ti rt rt ti ti rf ti ω ti ti ι ω ω μ α i H Oi ^ N oi cj to σi ft (Urn >ιH to tJi ft ftπ ft tn rj) w 2 ^ π j-i ? O ft w . ^ ft , Λ (IJ Λ -H ^ ,H S^ H H fd iH -H IU H t Λ Λ ^ i OJ (d ti rt Q) rt <D & rt rt rt >rt , ti rt ti Ul rt rt rt Ul >, ti ti ti ti rt <ύ >, ti W W ti ω ti >irt >. ti & α) cu ti m rt rt >. ti ^ ■Q EH > EH ffi ι ^ ri^ a U > ι ffi ω ϋ J ri! Λ EH ri; H3 Q > > ri! ω 0 W Ci< 3 Val 379 B B 0.22 1.11 * * . -0.60 0.37 Leu 380 B B -0.09 1.09 * * . -0.60 0.38 Arg 381 B B 0.26 0.76 * * . -0.60 0.36 Leu 382 B B 0.47 -0.16 * * . 0.30 0.84 Asn 383 B C -0.06 -0.30 * * F 0.80 1.39 Gly 384 C 0.56 -0.30 * * F 0.85 0.58 Glu 385 C 0.67 0.46 . * F 0.10 1.11 His 386 B B 0.24 0.56 . * . -0.60 0.60 Leu 387 B B 0.24 0.64 * . -0.60 0.87 Tyr 388 B B 0.24 0.90 -0.60 0.42 Phe 389 B B 0.38 1.30 * . -0.60 0.49 Thr 390 B B 0.49 1.23 . * . -0.60 0.92 Leu 391 B B -0.18 0.54 * * . -0.451.15 Asn 392 T C -0.26 0.57 * * . 0.15 1.15 Pro 393 1 T . -0.31 0.47 * * . 0.20 0.56 Arg 394 1 T . -0.47 0.37 * * . 0.50 0.91 Phe 395 B , T . -0.86 0.33 * * . 0.10 0.42 He 396 B B -0.26 0.71 * * . -0.60 0.23 Ser 397 B B -0.14 0.71 * -0.60 0.19 Val 398 B B -0.24 0.71 * . . -0.60 0.42 Phe 399 B B -0.57 0.41 * . . -0.60 0.86 Pro 400 1 -0.08 0.16 * F 0.73 1.00 Arg 401 1 C . . 0.50 0.20 * . F 1.16 2.07 Thr 402 C 0.84 0.04 * . F 1.24 3.46 Pro 403 T C 0.81 -0.74 F 2.62 4.47 Pro 404 T T . 1.17 -0.49 * . F 2.80 1.60 Thr 405 1 [ ■ T . 0.52 -0.06 * . F 2.52 1.10 Lys 406 B T . -0.29 0.10 * . F 1.09 0.53 He 407 B B -0.79 0.46 * * . -0.04 0.29 Gly 408 B B -0.58 0.71 * . -0.32 0.17 Val 409 B B -0.61 0.23 * . -0.30 0.14 Phe 410 B B -0.30 0.99 * . -0.60 0.31 Leu 411 B B -1.01 0.30 * . -0.08 0.55 Asp 412 B T . -0.47 0.44 0.24 0.40 Tyr 413 B T . -0.43 0.23 0.76 0.45 Glu 414 . r T . -0.47 -0.07 1.98 0.80 Cys 415 . 1? T . -0.07 -0.07 2.20 0.33 Gly 416 B P . . 0.04 0.31 0.98 0.29 Thr 417 B B -0.66 0.34 0.36 0.14 He 418 B B -0.41 1.13 -0.16 0.23 Ser 419 B B -1.30 0.96 -0.38 0.37 Phe 420 B B -0.63 1.21 -0.60 0.18 Phe 421 ' B B -0.291.13 -0.60 0.42 Asn 422 B B 0.02 0.44 -0.47 0.52 He 423 B C 0.61 0.46 0.01 1.04 Asn 424 B C 0.10 0.06 F 0.59 1.61 Asp 425 . r T . -0.09 -0.04 F 1.77 0.83 Gin 426 . C T . 0.37 0.24 * F 1.30 0.83 Ser 427 . r T . 0.06 0.31 F 1.17 0.80 Leu 428 B T . 0.13 0.40 0.49 0.70 He 429 B B -0.18 1.09 -0.34 0.33 Tyr 430 B B -0.84 1.17 * . -0.47 0.36 Thr 431 B B -0.73 1.36 * * . -0.60 0.23 Leu 432 B B -1.13 0.67 * * . -0.60 0.65 Thr 433 B B -0.32 0.77 ' * * . -0.60 0.36 Cys 434 . 2 V B B 0.22 0.01 ' " * . -0.30 0.43 Arg 435 . 2 \ B B -0.34 -0.04 " * . 0.30 0.52 Phe 436 . 2 \ B B -0.84 -0.04 " * . 0.30 0.29 Glu 437 . 2 B B 0.08 0.16 ' ► * . -0.30 0.45 Gly 438 . 2 \ . r . . 0.18 -0.41 ' ► * . 0.70 0.45 Leu 439 . 2 \ . r . . o.6o o.oi ' * * . 0.10 0.81 Leu 440 . 2 \ B C -0.40 -0.01 " * F 0.65 0.73 Arg 441 . 3 \ B C 0.30 0.67 * * . -0.40 0.52 Pro 442 B B 0.06 0.24 * * . -0.15 1.09 Tyr 443 B B 0.19 0.31 » * . -0.15 2.07 He 444 B B 0.70 0.06 * * . -0.151.63 Glu 445 B B 1.27 0.44 " * * . -0.451.42 Tyr 446 B T . 1.16 0.77 * . -0.051.42 Pro 447 B T . 1.37 0.41 F 0.10 3.25 Ser 448 . r T . 1.61 -0.27 F 1.40 3.25 Tyr 449 . r T . 2.50 0.13 F 0.80 3.59 Asn 450 . . . 2.16 -0.23 F 1.50 3.73 Glu 451 . r T . 2.09 -0.23 F 2.00 2.76 Gin 452 T T 2.09 -0.13 F 2.30 2.54 Asn 453 T T 2.50 -0.46 F 2.60 2.44 Gly 454 T c 2.74 -0.86 F 3.00 2.76 Thr 455 T c 2.79 -0.86 F 2.70 2.66 Pro 456 T c 2.79 -1.26 F 2.40 3.31 Arg 457 T T 2.79 -1.26 F 2.30 5.80 Asp 458 T T 2.40 -1.29 F 2.00 6.95 Lys 459 B 2.36 -1.34 0.95 5.75 Gin 460 B 2.28 -1.34 0.95 3.75 Gin 461 I 3 2.10 -0.91 0.95 2.87 TABLE 10 TABLE 11 TABLE 12 [961] Having generally described the invention, the same will be more readily understood by reference to the following examples, which are provided by way of illustration and are not intended as limiting. EXAMPLES Example 1: Isolation of a Selected cDNA Clone From the Deposited Sample [962] Each cDNA clone in a cited ATCC deposit is contained in a plasmid vector. Table 1 identifies the vectors used to construct the cDNA library from which each clone was isolated. In many cases, the vector used to construct the library is a phage vector from which a plasmid has been excised. The table immediately below correlates the related plasmid for each phage vector used in constructing the cDNA library. For example, where a particular clone is identified in Table 1 as being isolated in the vector "Lambda Zap," the corresponding deposited clone is in "pBluescript." Vector Used to Construct Library Corresponding Deposited Plasmid Lambda Zap pBluescript (pBS) Uni-Zap XR pBluescript (pBS) Zap Express pBK lafmid BA plafmid BA pSportl pSportl pCMVSport 2.0 pCMVSport 2.0 pCMVSport 3.0 pCMVSport 3.0 pCR ® 2.1 pCR ® 2.1 [963] Vectors Lambda Zap (U.S. Patent Nos. 5,128,256 and 5,286,636), Uni-Zap XR (U.S. Patent Nos. 5,128, 256 and 5,286,636), Zap Express (U.S. Patent Nos. 5,128,256 and 5,286,636), pBluescript (pBS) (Short et al., Nucleic Acids Res., 16:7583-7600 (1988); Alting- Mees et al., Nucleic Acids Res., 17:9494 (1989)) and pBK (Alting-Mees et al., Strategies, 5:58-61 (1992)) are commercially available from Stratagene Cloning Systems, Inc., 11011 N. Torrey Pines Road, La Jolla, CA, 92037. pBS contains an ampicillin resistance gene and pBK contains a neomycin resistance gene. Both can be transformed into E. coli strain XL-1 Blue, also available from Stratagene. pBS comes in 4 forms SK+, SK-, KS+ and KS. The S and K refers to the orientation of the polylinker to the T7 and T3 primer sequences which flank the polylinker region ("S" is for Sad and "K" is for Kpnl which are the first sites on each respective end of the linker). "+" or "-" refer to the orientation of the fl origin of replication ("ori"), such that in one orientation, single stranded rescue initiated from the fl ori generates sense strand DNA and in the other, antisense. [964] Vectors pSportl, pCMVSport 2.0 and pCMVSport 3.0, were obtained from Life Technologies, Inc., P. O. Box 6009, Gaithersburg, MD 20897. All Sport vectors contain an ampicillin resistance gene and may be transformed into E. coli strain DH10B, also available from Life Technologies. (See, for instance; Gruber, C. E., et al., Focus 15:59 (1993)). Vector lafrnid BA (Bento Soares, Columbia University, NY) contains an ampicillin resistance gene and can be transformed into E. coli strain XL-1 Blue. Vector pCR ® 2.1, which is available from Invitrogen, 1600 Faraday Avenue, Carlsbad, CA 92008, contains an ampicillin resistance gene and may be transformed into E. coli strain DH10B, available from Life Technologies. (See, for instance, Clark, Nuc. Acids Res., 16:9677-9686 (1988) and Mead et al., Bio/Technology, 9 (1991)). Preferably, a polynucleotide ofthe present invention does not comprise the phage vector sequences identified for the particular clone in Table 1, as well as the corresponding plasmid vector sequences designated above. [965] The deposited material in the sample assigned the ATCC Deposit Number cited in Table 1 for any given cDNA clone also may contain one or more additional plasmids, each comprising a cDNA clone different from that given clone. Thus, deposits sharing the same ATCC Deposit Number contain at least a plasmid for each cDNA PlasmidN identified in Table 1. Typically, each ATCC deposit sample cited in Table 1 comprises a mixture of approximately equal amounts (by weight) of about 50 plasmid DΝAs, each containing a different cDΝA clone; but such a deposit sample may include plasmids for more or less than 50 cDΝA clones, up to about 500 cDΝA clones. [966] Two approaches can be used to isolate a particular clone from the deposited sample of plasmid DΝAs cited for that clone in Table 1. First, a plasmid is directly isolated by screening the clones using a polynucleotide probe corresponding to SEQ ID ΝO:X. [967] Particularly, a specific polynucleotide with 30-40 nucleotides is synthesized using an Applied Biosystems DNA synthesizer according to the sequence reported. The oligonucleotide is labeled, for instance, with 32 P-γ-ATP using T4 polynucleotide kinase and purified according to routine methods. (E.g., Maniatis et al., Molecular Cloning: A Laboratory Manual, Cold Spring Harbor Press, Cold Spring, NY (1982)). The plasmid mixture is transformed into a suitable host, as indicated above (such as XL-1 Blue (Stratagene)) using techniques known to those of skill in the art, such as those provided by the vector supplier or in related publications or patents cited above. The transformants are plated on 1.5% agar plates (containing the appropriate selection agent, e.g., ampicillin) to a density of about 150 transformants (colonies) per plate. These plates are screened using Nylon membranes according to routine methods for bacterial colony screening (e.g., Sambrook et al., Molecular Cloning: A Laboratory Manual, 2nd Edit., (1989), Cold Spring Harbor Laboratory Press, pages 1.93 to 1.104), or other techniques known to those of skill in the art. [968] Alternatively, two primers of 17-20 nucleotides derived from both ends ofthe SEQ ID NO:X (i.e., within the region of SEQ ID NO:X bounded by the 5' NT and the 3' NT ofthe clone defined in Table 1) are synthesized and used to amplify the desired cDNA using the deposited cDNA plasmid as a template. The polymerase chain reaction is carried out under routine conditions, for instance, in 25 μl of reaction mixture with 0.5 ug of the above cDNA template. A convenient reaction mixture is 1.5-5 mM MgCl 2 , 0.01% (w/v) gelatin, 20 μM each of dATP, dCTP, dGTP, dTTP, 25 pmol of each primer and 0.25 Unit of Taq polymerase. Thirty five cycles of PCR (denaturation at 94°C for 1 min; annealing at 55°C for 1 min; elongation at 72°C for 1 min) are performed with a Perkin-Elmer Cetus automated thermal cycler. The amplified product is analyzed by agarose gel electrophoresis and the DNA band with expected molecular weight is excised and purified. The PCR product is verified to be the selected sequence by subcloning and sequencing the DNA product. [969] Several methods are available for the identification of the 5' or 3' non-coding portions of a gene which may not be present in the deposited clone. These methods include but are not limited to, filter probing, clone enrichment using specific probes, and protocols similar or identical to 5' and 3' "RACE" protocols which are well known in the art. For instance, a method similar to 5' RACE is available for generating the missing 5' end of a desired full-length transcript. (Fromont-Racine et al., Nucleic Acids Res., 21(7): 1683-1684 (1993)). [970] Briefly, a specific RNA oligonucleotide is ligated to the 5' ends of a population of RNA presumably containing full-length gene RNA transcripts. A primer set containing a primer specific to the ligated RNA oligonucleotide and a primer specific to a known sequence of the gene of interest is used to PCR amplify the 5' portion of the desired full-length gene. This amplified product may then be sequenced and used to generate the full length gene. [971] This above method starts with total RNA isolated from the desired source, although poly-A+ RNA can be used. The RNA preparation can then be treated with phosphatase if necessary to eliminate 5' phosphate groups on degraded or damaged RNA which may interfere with the later RNA ligase step. The phosphatase should then be inactivated and the RNA treated with tobacco acid pyrophosphatase in order to remove the cap structure present at the 5' ends of messenger RNAs. This reaction leaves a 5' phosphate group at the 5' end of the cap cleaved RNA which can then be ligated to an RNA oligonucleotide using T4 RNA ligase. [972] This modified RNA preparation is used as a template for first strand cDNA synthesis using a gene specific oligonucleotide. The first strand synthesis reaction is used as a template for PCR amplification of the desired 5' end using a primer specific to the ligated RNA oligonucleotide and a primer specific to the known sequence of the gene of interest. The resultant product is then sequenced and analyzed to confirm that the 5' end sequence belongs to the desired gene. Example 2: Isolation of Genomic Clones Corresponding to a Polynucleotide [973] A human genomic PI library (Genomic Systems, Inc.) is screened by PCR using primers selected for the cDNA sequence corresponding to SEQ ID NO:X., according to the method described in Example 1. (See also, Sambrook.) Example 3: Tissue Distribution of Polypeptide [974] Tissue distribution of mRNA expression of polynucleotides of the present invention is determined using protocols for Northern blot analysis, described by, among others, Sambrook et al. For example, a cDNA probe produced by the method described in Example 1 is labeled with P 32 using the rediprime™ DNA labeling system (Amersham Life Science), according to manufacturer's instructions. After labeling, the probe is purified using CHROMA SPIN- 100™ column (Clontech Laboratories, hie), according to manufacturer's protocol number PT1200-1. The purified labeled probe is then used to examine various human tissues for mRNA expression. [975] Multiple Tissue Northern (MTN) blots containing various human tissues (H) or human immune system tissues (IM) (Clontech) are examined with the labeled probe using ExpressHyb™ hybridization solution (Clontech) according to manufacturer's protocol number PT1190-1. Following hybridization and washing, the blots are mounted and exposed to film at -70°C overnight, and the films developed according to standard procedures. Example 4: Chromosomal Mapping of the Polynucleotides [976] An oligonucleotide primer set is designed according to the sequence at the 5' end of SEQ ID NO:X. This primer preferably spans about 100 nucleotides. This primer set is then used in a polymerase chain reaction under the following set of conditions : 30 seconds, 95°C; 1 minute, 56°C; 1 minute, 70°C. This cycle is repeated 32 times followed by one 5 minute cycle at 70°C. Human, mouse, and hamster DNA is used as template in addition to a somatic cell hybrid panel containing individual chromosomes or chromosome fragments (Bios, Inc). The reactions is analyzed on either 8% polyacrylamide gels or 3.5 % agarose gels. Chromosome mapping is determined by the presence of an approximately 100 bp PCR fragment in the particular somatic cell hybrid. Example 5: Bacterial Expression of a Polypeptide [977] A polynucleotide encoding a polypeptide of the present invention is amplified using PCR oligonucleotide primers corresponding to the 5' and 3' ends ofthe DNA sequence, as outlined in Example 1, to synthesize insertion fragments. The primers used to amplify the cDNA insert should preferably contain restriction sites, such as BamHI and Xbal and initiation/stop codons, if necessary, to clone the amplified product into the expression vector. For example, BamHI and Xbal correspond to the restriction enzyme sites on the bacterial expression vector pQE-9. (Qiagen, Inc., Chatsworth, CA). This plasmid vector encodes antibiotic resistance (Amp 1 ), a bacterial origin of replication (ori), an IPTG-regulatable promoter/operator (P/O), a ribosome binding site (RBS), a 6-histidine tag (6-His), and restriction enzyme cloning sites. [978] The pQE-9 vector is digested with BamHI and Xbal and the amplified fragment is ligated into the pQE-9 vector maintaining the reading frame initiated at the bacterial RBS. The ligation mixture is then used to transform the E. coli strain M15/rep4 (Qiagen, Inc,) which contains multiple copies ofthe plasmid pREP4, which expresses the lad repressor and also confers kanamycin resistance (KavF). Transformants are identified by their ability to grow on LB plates and ampicillin/kanamycin resistant colonies are selected. Plasmid DNA is isolated and confirmed by restriction analysis. [979] Clones containing the desired constructs are grown overnight (O/N) in liquid culture in LB media supplemented with both Amp (100 ug ml) and Kan (25 ug/ml). The O/N culture is used to inoculate a large culture at a ratio of 1 : 100 to 1 :250. The cells are grown to an optical density 600 (O.D. 600 ) of between 0.4 and 0.6. IPTG (Isopropyl-B-D-thiogalacto pyranoside) is then added to a final concentration of 1 mM. IPTG induces by inactivating the lad repressor, clearing the P/O leading to increased gene expression. [980] Cells are grown for an extra 3 to 4 hours. Cells are then harvested by centrifugation (20 mins at 6000Xg). The cell pellet is solubilized in the chaotropic agent 6 Molar Guanidine HCI by stirring for 3-4 hours at 4°C. The cell debris is removed by centrifugation, and the supernatant containing the polypeptide is loaded onto a nickel-nitrilo- tri-acetic acid ("Ni-NTA") affinity resin column (available from QIAGEN, Inc., supra). Proteins with a 6 x His tag bind to the Ni-NTA resin with high affinity and can be purified in a simple one-step procedure (for details see: The QIAexpressionist (1995) QIAGEN, Inc., supra). [981] Briefly, the supernatant is loaded onto the column in 6 M guanidine-HCl, pH 8, the column is first washed with 10 volumes of 6 M guanidine-HCl, pH 8, then washed with 10 yolumes of 6 M guanidine-HCl pH 6, and finally the polypeptide is eluted with 6 M guanidine-HCl, pH 5. [982] The purified protein is then renatured by dialyzing it against phosphate-buffered saline (PBS) or 50 mM Na-acetate, pH 6 buffer plus 200 mM NaCl. Alternatively, the protein can be successfully refolded while immobilized on the Ni-NTA column. The recommended conditions are as follows: renature using a linear 6M-1M urea gradient in 500 mM NaCl, 20% glycerol, 20 mM Tris/HCl pH 7.4, containing protease inhibitors. The renaturation should be performed over a period of 1.5 hours or more. After renaruration the proteins are eluted by the addition of 250 mM immidazole. Immidazole is removed by a final dialyzing step against PBS or 50 M sodium acetate pH 6 buffer plus 200 mM NaCl. The purified protein is stored at 4° C or frozen at -80° C. [983] In addition to the above expression vector, the present invention further includes an expression vector comprising phage operator and promoter elements operatively linked to a polynucleotide of the present invention, called pHE4a. (ATCC Accession Number 209645, deposited on February 25, 1998.) This vector contains: 1) a neomycinphosphotransferase gene as a selection marker, 2) an E. coli origin of replication, 3) a T5 phage promoter sequence, 4) two lac operator sequences, 5) a Shine-Delgarno sequence, and 6) the lactose operon repressor gene (laclq). The origin of replication (oriC) is derived from pUC19 (LTI, Gaithersburg, MD). The promoter sequence and operator sequences are made synthetically. [984] DNA can be inserted into the pHEa by restricting the vector with Ndel and Xbal, BamHI, Xhol, or Asp718, running the restricted product on a gel, and isolating the larger fragment (the sniffer fragment should be about 310 base pairs). The DNA insert is generated according to the PCR protocol described in Example 1, using PCR primers having restriction sites for Ndel (5' primer) and Xbal, BamHI, Xhol, or Asp718 (3' primer). The PCR insert is gel purified and restricted with compatible enzymes. The insert and vector are ligated according to standard protocols. [985] The engineered vector could easily be substituted in the above protocol to express protein in a bacterial system. Example 6: Purification of a Polypeptide from an Inclusion Body [986] The following alternative method can be used to purify a polypeptide expressed in E coli when it is present in the form of inclusion bodies. Unless otherwise specified, all of the following steps are conducted at 4-10°C. [987] Upon completion of the production phase of the E. coli fermentation, the cell culture is cooled to 4-10°C and the cells harvested by continuous centrifugation at 15,000 rpm (Heraeus Sepatech). On the basis ofthe expected yield of protein per unit weight of cell paste and the amount of purified protein required, an appropriate amount of cell paste, by weight, is suspended in a buffer solution containing 100 mM Tris, 50 mM EDTA, pH 7.4. The cells are dispersed to a homogeneous suspension using a high shear mixer. [988] The cells are then lysed by passing the solution through a microfiuidizer (Microfuidics, Corp. or APN Gaulin, Inc.) twice at 4000-6000 psi. The homogenate is then mixed with ΝaCl solution to a final concentration of 0.5 M ΝaCl, followed by centrifugation at 7000 xg for 15 min. The resultant pellet is washed again using 0.5M ΝaCl, 100 mM Tris, 50 mM EDTA, pH 7.4. [989] The resulting washed inclusion bodies are solubilized with 1.5 M guanidine hydrochloride (GuHCl) for 2-4 hours. After 7000 xg centrifugation for 15 min., the pellet is discarded and the polypeptide containing supernatant is incubated at 4°C overnight to allow further GuHCl extraction. [990] Following high speed centrifugation (30,000 xg) to remove insoluble particles, the GuHCl solubilized protein is refolded by quickly mixing the GuHCl extract with 20 volumes of buffer containing 50 mM sodium, pH 4.5, 150 mM NaCl, 2 mM EDTA by vigorous stirring. The refolded diluted protein solution is kept at 4°C without mixing for 12 hours prior to further purification steps. [991] To clarify the refolded polypeptide solution, a previously prepared tangential filtration unit equipped with 0.16 μm membrane filter with appropriate surface area (e.g., Filtron), equilibrated with 40 mM sodium acetate, pH 6.0 is employed. The filtered sample is loaded onto a cation exchange resin (e.g., Poros HS-50, Perseptive Biosystems). The column is washed with 40 mM sodium acetate, pH 6.0 and eluted with 250 mM, 500 mM, 1000 mM, and 1500 mM NaCl in the same buffer, in a stepwise manner. The absorbance at 280 nm of the effluent is continuously monitored. Fractions are collected and further analyzed by SDS- PAGE. [992] Fractions containing the polypeptide are then pooled and mixed with 4 volumes of water. The diluted sample is then loaded onto a previously prepared set of tandem columns of strong anion (Poros HQ-50, Perseptive Biosystems) and weak anion (Poros CM-20, Perseptive Biosystems) exchange resins. The columns are equilibrated with 40 mM sodium acetate, pH 6.0. Both columns are washed with 40 mM sodium acetate, pH 6.0, 200 mM NaCl. The CM-20 column is then eluted using a 10 column volume linear gradient ranging from 0.2 M NaCl, 50 mM sodium acetate, pH 6.0 to 1.0 M NaCl, 50 mM sodium acetate, pH 6.5. Fractions are collected under constant A 80 monitoring of the effluent. Fractions containing the polypeptide (determined, for instance, by 16% SDS-PAGE) are then pooled. [993] The resultant polypeptide should exhibit greater than 95% purity after the above refolding and purification steps. No major contaminant bands should be observed from Commassie blue stained 16% SDS-PAGE gel when 5 μg of purified protein is loaded. The purified protein can also be tested for endotoxin/LPS contamination, and typically the LPS content is less than 0.1 ng/ml according to LAL assays. Example 7: Cloning and Expression of a Polypeptide in a Baculovirus Expression System [994] In this example, the plasmid shuttle vector pA2 is used to insert a polynucleotide into a baculovirus to express a polypeptide. This expression vector contains the strong polyhedrin promoter of the Autographa californica nuclear polyhedrosis virus (AcMNPV) followed by convenient restriction sites such as BamHI, Xba I and Asp718. The polyadenylation site of the simian virus 40 ("SV40") is used for efficient polyadenylation. For easy selection of recombinant virus, the plasmid contains the beta-galactosidase gene from E. coli under control of a weak Drosophila promoter in the same orientation, followed by the polyadenylation signal ofthe polyhedrin gene. The inserted genes are flanked on both sides by viral sequences for cell-mediated homologous recombination with wild-type viral DNA to generate a viable virus that express the cloned polynucleotide. [995] Many other baculovirus vectors can be used in place of the vector above, such as pAc373, pVL941, and pAcBVIl, as one skilled in the art would readily appreciate, as long as the construct provides appropriately located signals for transcription, translation, secretion and the like, including a signal peptide and an in-frame AUG as required. Such vectors are described, for instance, in Luckow et al., Virology 170:31-39 (1989). [996] Specifically, the cDNA sequence contained in the deposited clone is amplified using the PCR protocol described in Example 1 using primers with appropriate restriction sites and initiation stop codons. If the naturally occurring signal sequence is used to produce the secreted protein, the pA2 vector does not need a second signal peptide. Alternatively, the vector can be modified (pA2 GP) to include a baculovirus leader sequence, using the standard methods described in Summers et al., "A Manual of Methods for Baculovirus Vectors and Insect Cell Culture Procedures," Texas Agricultural Experimental Station Bulletin NO: 1555 (1987). [997] The amplified fragment is isolated from a 1% agarose gel using a commercially available kit ("Geneclean," BIO 101 Inc., La Jolla, Ca.). The fragment then is digested with appropriate restriction enzymes and again purified on a 1% agarose gel. [998] The plasmid is digested with the corresponding restriction enzymes and optionally, can be dephosphorylated using calf intestinal phosphatase, using routine procedures known in the art. The DNA is then isolated from a 1% agarose gel using a commercially available kit ("Geneclean" BIO 101 Inc., La Jolla, Ca.). [999] The fragment and the dephosphorylated plasmid are ligated together with T4 DNA ligase. E. coli HB101 or other suitable E. coli hosts such as XL-1 Blue (Stratagene Cloning Systems, La Jolla, CA) cells are transformed with the ligation mixture and spread on culture plates. Bacteria containing the plasmid are identified by digesting DNA from individual colonies and analyzing the digestion product by gel electrophoresis. The sequence of the cloned fragment is confirmed by DNA sequencing. [1000] Five μg of a plasmid containing the polynucleotide is co-transfected with 1.0 μg of a commercially available linearized baculovirus DNA ("BaculoGold™ baculovirus DNA", Pharmingen, San Diego, CA), using the lipofection method described by Feigner et al., Proc. Natl. Acad. Sci. USA 84:7413-7417 (1987). One μg of BaculoGold™ virus DNA and 5 μg ofthe plasmid are mixed in a sterile well of a microtiter plate containing 50 μl of serum-free Grace's medium (Life Technologies Inc., Gaithersburg, MD). Afterwards, 10 μl Lipofectin plus 90 μl Grace's medium are added, mixed and incubated for 15 minutes at room temperature. Then the transfection mixture is added drop-wise to Sf9 insect cells (ATCC CRL 1711) seeded in a 35 mm tissue culture plate with 1 ml Grace's medium without serum. The plate is then incubated for 5 hours at 27° C. The transfection solution is then removed from the plate and 1 ml of Grace's insect medium supplemented with 10% fetal calf serum is added. Cultivation is then continued at 27° C for four days. [1001] After four days the supernatant is collected and a plaque assay is performed, as described by Summers and Smith, supra. An agarose gel with "Blue Gal" (Life Technologies Inc., Gaithersburg) is used to allow easy identification and isolation of gal-expressing clones, which produce blue-stained plaques. (A detailed description of a "plaque assay" of this type can also be found in the user's guide for insect cell culture and baculovirology distributed by Life Technologies Inc., Gaithersburg, page 9-10.) After appropriate incubation, blue stained plaques are picked with the tip of a micropipettor (e.g., Εppendorf). The agar containing the recombinant viruses is then resuspended in a microcentrifuge tube containing 200 μl of Grace's medium and the suspension containing the recombinant baculovirus is used to infect Sf9 cells seeded in 35 mm dishes. Four days later the supematants of these culture dishes are harvested and then they are stored at 4° C. [1002] To verify the expression ofthe polypeptide, Sf9 cells are grown in Grace's medium supplemented with 10% heat-inactivated FBS. The cells are infected with the recombinant baculovirus containing the polynucleotide at a multiplicity of infection ("MOI") of about 2. If radiolabeled proteins are desired, 6 hours later the medium is removed and is replaced with SF900 If medium minus methionine and cysteine (available from Life Technologies Inc., Rockville, MD). After 42 hours, 5 μCi of 35 S-methionine and 5 μCi 35 S-cysteine (available from Amersham) are added. The cells are further incubated for 16 hours and then are harvested by centrifugation. The proteins in the supernatant as well as the intracellular proteins are analyzed by SDS-PAGE followed by autoradiography (if radiolabeled). [1003] Microsequencing of the amino acid sequence of the amino terminus of purified protein may be used to determine the amino terminal sequence ofthe produced protein. Example 8: Expression of a Polypeptide in Mammalian Cells [1004] The polypeptide ofthe present invention can be expressed in a mammalian cell. A typical mammalian expression vector contains a promoter element, which mediates the initiation of transcription of mRNA, a protein coding sequence, and signals required for the termination of transcription and polyadenylation of the transcript. Additional elements include enhancers, Kozak sequences and intervening sequences flanked by donor and acceptor sites for RNA splicing. Highly efficient transcription is achieved with the early and late promoters from SV40, the long terminal repeats (LTRs) from Retroviruses, e.g., RSV, HTLVI, HIVI and the early promoter of the cytomegalovirus (CMV). However, cellular elements can also be used (e.g., the human actin promoter). [1005] Suitable expression vectors for use in practicing the present invention include, for example, vectors such as pSVL and pMSG (Pharmacia, Uppsala, Sweden), pRSVcat (ATCC 37152), pSV2dlιfr (ATCC 37146), pBC12MI (ATCC 67109), pCMVSport 2.0, and pCMVSport 3.0. Mammalian host cells that could be used include, human Hela, 293, H9 and Jurkat cells, mouse NIH3T3 and C127 cells, Cos 1, Cos 7 and CV1, quail QC1-3 cells, mouse L cells and Chinese hamster ovary (CHO) cells. [1006] Alternatively, the polypeptide can be expressed in stable cell lines containing the polynucleotide integrated into a chromosome. The co-transfection with a selectable marker such as dfrfr, gpt, neomycin, hygromycin allows the identification and isolation of the transfected cells. [1007] The transfected gene can also be amplified to express large amounts ofthe encoded protein. The DHFR (dihydrofolate reductase) marker is useful in developing cell lines that carry several hundred or even several thousand copies ofthe gene of interest. (See, e.g., Alt et al., J. Biol. Chem., 253:1357-1370 (1978); Hamlin et al., Biochem. et Biophys. Acta, 1097:107-143 (1990); Page et al, Biotechnology, 9:64-68 (1991)). Another useful selection marker is the enzyme glutamine synthase (GS) (Murphy et al, Biochem J, 227:277-279 (1991); Bebbington et al., Bio/Technology, 10:169-175 (1992). Using these markers, the mammalian cells are grown in selective medium and the cells with the highest resistance are selected. These cell lines contain the amplified gene(s) integrated into a chromosome. Chinese hamster ovary (CHO) and NSO cells are often used for the production of proteins. [1008] Derivatives of the plasmid pSV2-dhfr (ATCC Accession No.: 37146), the expression vectors pC4 (ATCC Accession No.: 209646) and pC6 (ATCC Accession No.:209647) contain the strong promoter (LTR) of the Rous Sarcoma Virus (Cullen et al., Molecular and Cellular Biology, 438-447 (March, 1985)) plus a fragment of the CMV- enhancer (Boshart et al., Cell, 41:521-530 (1985)). Multiple cloning sites, e.g., with the restriction enzyme cleavage sites BamHI, Xbal and Asp718, facilitate the cloning ofthe gene of interest. The vectors also contain the 3' intron, the polyadenylation and termination signal of the rat preproinsulin gene, and the mouse DHFR gene under control of the SV40 early promoter. [1009] Specifically, the plasmid pC6, for example, is digested with appropriate restriction enzymes and then dephosphorylated using calf intestinal phosphates by procedures known in the art. The vector is then isolated from a 1% agarose gel. [1010] A polynucleotide of the present invention is amplified according to the protocol outlined in Example 1 using primers with appropriate restrictions sites and initiation/stop codons, if necessary. The vector can be modified to include a heterologous signal sequence if necessary for secretion. (See, e.g., WO 96/34891.) [1011] The amplified fragment is isolated from a 1% agarose gel using a commercially available kit ("Geneclean," BIO 101 Inc., La Jolla, Ca.). The fragment then is digested with appropriate restriction enzymes and again purified on a 1% agarose gel. [1012] The amplified fragment is then digested with the same restriction enzyme and purified on a 1% agarose gel. The isolated fragment and the dephosphorylated vector are then ligated with T4 DNA ligase. E. coli HB101 or XL-1 Blue cells are then transformed and bacteria are identified that contain the fragment inserted into plasmid pC6 using, for instance, restriction enzyme analysis. [1013] Chinese hamster ovary cells lacking an active DHFR gene is used for transfection. Five μg of the expression plasmid pC6 is cotransfected with 0.5 μg of the plasmid pSVneo using lipofectin (Feigner et al., supra). The plasmid pSV2-neo contains a dominant selectable marker, the neo gene from Tn5 encoding an enzyme that confers resistance to a group of antibiotics including G418. The cells are seeded in alpha minus MEM supplemented with 1 mg/ml G418. After 2 days, the cells are trypsinized and seeded in hybridoma cloning plates (Greiner, Germany) in alpha minus MEM supplemented with 10, 25, or 50 ng/nil of metothrexate plus 1 mg/ml G418. After about 10-14 days single clones are trypsinized and then seeded in 6-well petri dishes or 10 ml flasks using different concentrations of methotrexate (50 nM, 100 nM, 200 nM, 400 nM, 800 nM). Clones growing at the highest concentrations of methotrexate are then transferred to new 6-well plates containing even higher concentrations of methotrexate (1 μM, 2 μM, 5 μM, 10 mM, 20 mM). The same procedure is repeated until clones are obtained which grow at a concentration of 100 - 200 μM. Expression of the desired gene product is analyzed, for instance, by SDS- PAGE and Western blot or by reversed phase HPLC analysis. Example 9: Protein Fusions [1014] The polypeptides of the present invention are preferably fused to other proteins. These fusion proteins can be used for a variety of applications. For example, fusion of the present polypeptides to His-tag, HA-tag, protein A, IgG domains, and maltose binding protein facilitates purification. (See Example 5; see also EP A 394,827; Traunecker, et al., Nature, 331:84-86 (1988)) The polypeptides can also be fused to heterologous polypeptide sequences to facilitate secretion and intracellular trafficking (e.g., KDEL). Moreover, fusion to IgG-1, IgG-3, and albumin increases the halflife time in vivo. Nuclear localization signals fused to the polypeptides of the present invention can target the protein to a specific subcellular localization, while covalent heterodimer or homodimers can increase or decrease the activity of a fusion protein. Fusion proteins can also create chimeric molecules having more than one function. Finally, fusion proteins can increase solubility and/or stability ofthe fused protein compared to the non-fused protein. All ofthe types of fusion proteins described above can be made by modifying the following protocol, which outlines the fusion of a polypeptide to an IgG molecule, or the protocol described in Example 5. [1015] Briefly, the human Fc portion of the IgG molecule can be PCR amplified, using primers that span the 5' and 3* ends of the sequence described below. These primers also should have convenient restriction enzyme sites that will facilitate cloning into an expression vector, preferably a mammalian expression vector, and initiation/stop codons, if necessary. [1016] For example, if pC4 (Accession No.: 209646) is used, the human Fc portion can be ligated into the BamHI cloning site. Note that the 3' BamHI site should be destroyed. Next, the vector containing the human Fc portion is re-restricted with BamHI, linearizing the vector, and a polynucleotide ofthe present invention, isolated by the PCR protocol described in Example 1, is ligated into this BamHI site. Note that the polynucleotide is cloned without a stop codon, otherwise a fusion protein will not be produced. [1017] If the naturally occurring signal sequence is used to produce the secreted protein, pC4 does not need a second signal peptide. Alternatively, if the naturally occurring signal sequence is not used, the vector can be modified to include a heterologous signal sequence. (See, e.g., WO 96/34891.) Human IgG Fc region: GGGATCCGGAGCCCAAATCTTCTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAATTCG AGGGTGCACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATGATCTCCCGGACTC CTGAGGTCACATGCGTGGTGGTGGACGTAAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTAC GTGGACGGCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACAACAGCACGT ACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGC AAGGTCTCCAACAAAGCCCTCCCAACCCCCATCGAGAAAACCATCTCCAAAGCCAAAGGGCAGCC CCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGATGAGCTGACCAAGAACCAGGTCAGCC TGACCTGCCTGGTCAAAGGCTTCTATCCAAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGC AAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGCATGA GGCTCTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGTAAATGAGTGCGACGGC CGCGACTCTAGAGGAT (SEQ ID NO:l) Example 10: Formulating a Polypeptide [1018] The invention also provides methods of treatment and/or prevention of diseases or disorders (such as, for example, any one or more of the diseases or disorders disclosed herein) by administration to a subject of an effective amount of a Therapeutic. By Therapeutic is meant polynucleotides or polypeptides of the invention (including fragments and variants), agonists or antagonists thereof, and/or antibodies thereto, in combination with a pharmaceutically acceptable carrier type (e.g., a sterile carrier). [1019] The polypeptide composition will be formulated and dosed in a fashion consistent with good medical practice, taking into account the clinical condition ofthe individual patient (especially the side effects of treatment with the secreted polypeptide alone), the site of delivery, the method of administration, the scheduling of administration, and other factors known to practitioners. The "effective amount" for purposes herein is thus determined by such considerations. [1020] As a general proposition, the total pharmaceutically effective amount of polypeptide administered parenterally per dose will be in the range of about 1 μg/kg/day to 10 mg/kg/day of patient body weight, although, as noted above, this will be subject to therapeutic discretion. More preferably, this dose is at least 0.01 mg/kg/day, and most preferably for humans between about 0.01 and 1 mg/kg/day for the hormone. If given continuously, the polypeptide is typically administered at a dose rate of about 1 μg/kg/hour to about 50 μg/kg/hour, either by 1-4 injections per day or by continuous subcutaneous infusions, for example, using a mini-pump. An intravenous bag solution may also be employed. The length of treatment needed to observe changes and the interval following treatment for responses to occur appears to vary depending on the desired effect. [1021] Pharmaceutical compositions containing the polypeptide of the invention are administered orally, rectally, parenterally, intracistemally, intravaginally, intraperitoneally, topically (as by powders, ointments, gels, drops or transdermal patch), bucally, or as an oral or nasal spray. "Pharmaceutically acceptable carrier" refers to a non-toxic solid, semisolid or liquid filler, diluent, encapsulating material or formulation auxiliary of any type. The term "narenteral" as used herein refers to modes of administration which mrhiήp. infra ve mis. 277 (1981), and Langer, Chem. Tech., 12:98-105 (1982)), ethylene vinyl acetate (R. Langer et al.) or poly-D- (-)-3-hydroxybutyric acid (EP 133,988). Sustained-release compositions also include liposomally entrapped polypeptides. Liposomes containing the secreted polypeptide are prepared by methods known per se: DE 3,218,121; Epstein et al., Proc. Natl. Acad. Sci. USA, 82:3688-3692 (1985); Hwang et al., Proc. Natl. Acad. Sci. USA , 77:4030-4034 (1980); EP 52,322; EP 36,676; EP 88,046; EP 143,949; EP 142,641; Japanese Pat. Appl. 83-118008; U.S. Pat. Nos. 4,485,045 and 4,544,545; and EP 102,324. Ordinarily, the liposomes are of the small (about 200-800 Angstroms) unilamellar type in which the lipid content is greater than about 30 mol. percent cholesterol, the selected proportion being adjusted for the optimal secreted polypeptide therapy. [1023] For parenteral administration, in one embodiment, the polypeptide is formulated generally by mixing it at the desired degree of purity, in a unit dosage mjectable form (solution, suspension, or emulsion), with a pharmaceutically acceptable carrier, i.e., one that is non-toxic to recipients at the dosages and concentrations employed and is compatible with other ingredients of the formulation. For example, the formulation preferably does not include oxidizing agents and other compounds that are known to be deleterious to polypeptides. [1024] Generally, the formulations are prepared by contacting the polypeptide uniformly and intimately with liquid carriers or finely divided solid carriers or both. Then, if necessary, the product is shaped into the desired formulation. Preferably the carrier is a parenteral carrier, more preferably a solution that is isotonic with the blood of the recipient. Examples of such carrier vehicles include water, saline, Ringer's solution, and dextrose solution. Non- aqueous vehicles such as fixed oils and ethyl oleate are also useful herein, as well as liposomes. [1025] The carrier suitably contains minor amounts of additives such as substances that enhance isotonicity and chemical stability. Such materials are non-toxic to recipients at the dosages and concentrations employed, and include buffers such as phosphate, citrate, succinate, acetic acid, and other organic acids or their salts; antioxidants such as ascorbic acid; low molecular weight (less than about ten residues) polypeptides, e.g., polyarginine or tripeptides; proteins, such as serum albumin, gelatin, or immunoglobulins; hydrophilic polymers such as polyvinylpyrrolidone; amino acids, such as glycine, glutamic acid, aspartic acid, or arginine; monosaccharides, disaccharides, and other carbohydrates including cellulose or its derivatives, glucose, manose, or dextrins; chelating agents such as EDTA; sugar alcohols such as mannitol or sorbitol; counterions such as sodium; and/or nonionic surfactants such as polysorbates, poloxamers, or PEG. [1026] The polypeptide is typically formulated in such vehicles at a concentration of about 0.1 mg/ml to 100 mg/ml, preferably 1-10 mg/ml, at a pH of about 3 to 8. It will be understood that the use of certain of the foregoing excipients, carriers, or stabilizers will result in the formation of polypeptide salts. [1027] Any polypeptide to be used for therapeutic administration can be sterile. Sterility is readily accomplished by filtration through sterile filtration membranes (e.g., 0.2 micron membranes). Therapeutic polypeptide compositions generally are placed into a container having a sterile access port, for example, an intravenous solution bag or vial having a stopper pierceable by a hypodermic injection needle. [1028] Polypeptides ordinarily will be stored in unit or multi-dose containers, for example, sealed ampoules or vials, as an aqueous solution or as a lyophilized formulation for reconstitution. As an example of a lyophilized formulation, 10-ml vials are filled with 5 ml of sterile-filtered 1% (w/v) aqueous polypeptide solution, and the resulting mixture is lyophilized. The infusion solution is prepared by reconstituting the lyophilized polypeptide using bacteriostatic Water-for-Injection. [1029] The invention also provides a pharmaceutical pack or kit comprising one or more containers filled with one or more of the ingredients of the pharmaceutical compositions of the invention. Associated with such container(s) can be a notice in the form prescribed by a governmental agency regulating the manufacture, use or sale of pharmaceuticals or biological products, which notice reflects approval by the agency of manufacture, use or sale for human administration. In addition, the polypeptides of the present invention may be employed in conjunction with other therapeutic compounds. [1030] The Therapeutics of the invention may be administered alone or in combination with adjuvants. Adjuvants that may be administered with the Therapeutics of the invention include, but are not limited to, alum, alum plus deoxycholate (ImmunoAg), MTP-PE (Biocine Corp.), QS21 (Genentech, Inc.), BCG (e.g., THERACYS®), MPL and nonviable prepartions of Corynebacterium parvum. In a specific embodiment, Therapeutics of the invention are administered in combination with alum. In another specific embodiment, Therapeutics ofthe invention are administered in combination with QS-21. Further adjuvants that may be administered with the Therapeutics of the invention include, but are not limited to, Monophosphoryl lipid immunomodulator, AdjuVax 100a, QS-21, QS-18, CRL1005, Aluminum salts, MF-59, and Virosomal adjuvant technology. Vaccines that may be administered with the Therapeutics of the invention include, but are not limited to, vaccines directed toward protection against MMR (measles, mumps, rubella), polio, varicella, tetanus/diptheria, hepatitis A, hepatitis B, haemophilus influenzae B, whooping cough, pneumonia, influenza, Lyme's Disease, rotavirus, cholera, yellow fever, Japanese encephalitis, poliomyelitis, rabies, typhoid fever, and pertussis. Combinations may be administered either concomitantly, e.g., as an admixture, separately but simultaneously or concurrently; or sequentially. This includes presentations in which the combined agents are administered together as a therapeutic mixture, and also procedures in which the combined agents are administered separately but simultaneously, e.g., as through separate intravenous lines into the same individual. Administration "in combination" further includes the separate administration of one ofthe compounds or agents given first, followed by the second. [1031] The Therapeutics of the invention may be administered alone or in combination with other therapeutic agents. Therapeutic agents that may be administered in combination with the Therapeutics of the invention, include but not limited to, chemotherapeutic agents, antibiotics, steroidal and non-steroidal anti-inflammatories, conventional immunotherapeutic agents, and/or therapeutic treatments described below. Combinations may be administered either concomitantly, e.g., as an admixture, separately but simultaneously or concurrently; or sequentially. This includes presentations in which the combined agents are admimstered together as a therapeutic mixture, and also procedures in which the combined agents are administered separately but simultaneously, e.g., as through separate intravenous lines into the same individual. Administration "in combination" further includes the separate administration of one ofthe compounds or agents given first, followed by the second. [1032] In one embodiment, the Therapeutics of the invention are administered in combination with an anticoagulant. Anticoagulants that may be administered with the compositions of the invention include, but are not limited to, heparin, low molecular weight heparin, warfarin sodium (e.g., COUMADIN®), dicumarol, 4-hydroxycoumarin, anisindione (e.g., MIRADON™), acenocoumarol (e.g., nicoumalone, SINTHROME™), indan-l,3-dione, phenprocoumon (e.g., MARCUMAR™), ethyl biscoumacetate (e.g., TROMEXAN™), and aspirin, hi a specific embodiment, compositions of the invention are administered in combination with heparin and/or warfarin. In another specific embodiment, compositions of the invention are administered in combination with warfarin. In another specific embodiment, compositions of the invention are administered in combination with warfarin and aspirin. In another specific embodiment, compositions of the invention are administered in combination with heparin. In another specific embodiment, compositions ofthe invention are administered in combination with heparin and aspirin. [1033] In another embodiment, the Therapeutics of the invention are admimstered in combination with thrombolytic drugs. Thrombolytic drugs that may be administered with the compositions of the invention include, but are not limited to, plasminogen, lys-plasminogen, alρha2-antiplasmin, streptokinae (e.g., KABIKINASE™), antiresplace (e.g., EMINASE™), tissue plasminogen activator (t-PA, altevase, ACTIVASE™), urokinase (e.g., ABBOKINASE™), sauruplase, (Prourokinase, single chain urokinase), and aminocaproic acid (e.g., AMICAR™). In a specific embodiment, compositions of the invention are administered in combination with tissue plasminogen activator and aspirin. [1034] In another embodiment, the Therapeutics of the invention are administered in combination with antiplatelet drugs. Antiplatelet drugs that may be administered with the compositions of the invention include, but are not limited to, aspirin, dipyridamole (e.g., PERSANTINE™), and ticlopidine (e.g., TICLID™). [1035] In specific embodiments, the use of anti-coagulants, thrombolytic and/or antiplatelet drugs in combination with Therapeutics of the invention is contemplated for the prevention, diagnosis, and/or treatment of thrombosis, arterial thrombosis, venous thrombosis, thromboembolism, pulmonary embolism, atherosclerosis, myocardial infarction, transient ischemic attack, unstable angina. In specific embodiments, the use of anticoagulants, thrombolytic drugs and/or antiplatelet drugs in combination with Therapeutics of the invention is contemplated for the prevention of occulsion of saphenous grafts, for reducing the risk of periprocedural thrombosis as might accompany angioplasty procedures, for reducing the risk of stroke in patients with atrial fibrillation including nonrheumatic atrial fibrillation, for reducing the risk of embolism associated with mechanical heart valves and or mitral valves disease. Other uses for the therapeutics of the invention, alone or in combination with antiplatelet, anticoagulant, and/or thrombolytic drugs, include, but are not limited to, the prevention of occlusions in extracorporeal devices (e.g., intravascular canulas, vascular access shunts in hemodialysis patients, hemodialysis machines, and cardiopulmonary bypass machines). [1036] In certain embodiments, Therapeutics of the invention are administered in combination with antiretroviral agents, nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), and/or protease inhibitors (Pis). NRTIs that may be administered in combination with the Therapeutics of the invention, include, but are not limited to, RETROVffi.™ (zidovudine/AZT), VIDEX™ (didanosine/ddl), fflVID™ (zalcitabine/ddC), ZERIT™ (stavudine/d4T), EPINIR™ (lamivudine/3TC), and COMBTVIR™ (zidovudine/lamivudine). ΝΝRTIs that may be administered in combination with the Therapeutics of the invention, include, but are not limited to, NIRAMUΝE™ (nevirapine), RESCRIPTOR™ (delavirdine), and SUSTINA™ (efavirenz). Protease inhibitors that may be administered in combination with the Therapeutics of the invention, include, but are not limited to, CRTXiNAΝ™ (indinavir), ΝORVIR™ (ritonavir), IΝVIRASE™ (saquinavir), and VIRACEPT™ (nelfmavir). hi a specific embodiment, antiretroviral agents, nucleoside reverse transcriptase inhibitors, non- nucleoside reverse transcriptase inhibitors, and/or protease inhibitors may be used in any combination with Therapeutics of the invention to treat AIDS and/or to prevent or treat HIV infection. [1037] Additional ΝRTIs include LODEΝOSfΝE™ (F-ddA; an acid-stable adenosine ΝRTI; Triangle/Abbott; COVIRACIL™ (emtricitabine/FTC; structurally related to lamivudine (3TC) but with 3- to 10-fold greater activity in vitro; Triangle/Abbott); dOTC (BCH- 10652, also structurally related to lamivudine but retains activity against a substantial proportion of lamivudine-resistant isolates; Biochem Pharma); Adefovir (refused approval for anti-HTV therapy by FDA; Gilead Sciences); PRENEOΝ® (Adefovir Dipivoxil, the active prodrug of adefovir; its active form is PMEA-pp); TENOFONIR™ (bis-POC PMPA, a PMPA prodrug; Gilead); DAPD/DXG (active metabolite of DAPD; Triangle/ Abbott); D- D4FC (related to 3TC, with activity against AZT/3TC-resistant virus); GW420867X (Glaxo Wellcome); ZIAGEΝ™ (abacavir/159U89; Glaxo Wellcome Inc.); CS-87 (3'azido-2',3'- dideoxyuridine; WO 99/66936); and S-acyl-2-thioethyl (SATE)-bearing prodrug forms of β- L-FD4C and β-L-FddC (WO 98/17281). [1038] Additional ΝΝRTIs include COACΗΝOΝ™ (Emivirine/MKC-442, potent ΝΝRTI of the HEPT class; Triangle/Abbott); CAPRANIRIΝE™ (AG-1549/S-1153, a next generation NNRTI with activity against viruses containing the K103N mutation; Agouron); PNU- 142721 (has 20- to 50-fold greater activity than its predecessor delavirdine and is active against K103N mutants; Pharmacia & Upjohn); DPC-961 and DPC-963 (second-generation derivatives of efavirenz, designed to be active against viruses with the K103N mutation; DuPont); GW-420867X (has 25-fold greater activity than HBY097 and is active against K103N mutants; Glaxo Wellcome); CALANOLIDE A (naturally occurring agent from the latex tree; active against viruses containing either or both the Y181C and K103N mutations); and Propolis (WO 99/49830). [1039] Additional protease inhibitors include LOPINAVIR™ (ABT378/r; Abbott Laboratories); BMS-232632 (an azapeptide; Bristol-Myres Squibb); TIPRANAVIR™ (PNU- 140690, a non-peptic dihydropyrone; Pharmacia & Upjohn); PD-178390 (a nonpeptidic dihydropyrone; Parke-Davis); BMS 232632 (an azapeptide; Bristol-Myers Squibb); L- 756,423 (an indinavir analog; Merck); DMP-450 (a cyclic urea compound; Avid & DuPont); AG-1776 (a peptidomimetic with in vitro activity against protease inhibitor-resistant viruses; Agouron); VX-175/GW-433908 (phosphate prodrug of amprenavir; Vertex & Glaxo Welcome); CGP61755 (Ciba); and AGENERASE™ (amprenavir; Glaxo Wellcome Inc.). [1040] Additional antiretroviral agents include fusion inhibitors/gp41 binders. Fusion inhibitors/gp41 binders include T-20 (a peptide from residues 643-678 of the HIV gp41 transmembrane protein ectodomain which binds to gp41 in its resting state and prevents transformation to the fusogenic state; Trimeris) and T-1249 (a second-generation fusion inhibitor; Trimeris). [1041] Additional antiretroviral agents include fusion inhibitors/chemokine receptor antagonists. Fusion inhibitors/chemokine receptor antagonists include CXCR4 antagonists such as AMD 3100 (a bicyclam), SDF-1 and its analogs, and ALX40-4C (a cationic peptide), T22 (an 18 amino acid peptide; Trimeris) and the T22 analogs T134 and T140; CCR5 antagonists such as RANTES (9-68), AOP-RANTES, NNY-RANTES, and TAK-779; and CCR5/CXCR4 antagonists such as NSC 651016 (a distamycin analog). Also included are CCR2B, CCR3, and CCR6 antagonists. Chemokine recpetor agonists such as RANTES, SDF-1, MlP-lα, MlP-lβ, etc., may also inhibit fusion. [1042] Additional antiretroviral agents include integrase inhibitors. Integrase inhibitors include dicaffeoylquinic (DFQA) acids; L-chicoric acid (a dicaffeoyltartaric (DCTA) acid); quinalizarin (QLC) and related anthraquinones; ZINTEVIR™ (AR 177, an oligonucleotide that probably acts at cell surface rather than being a true integrase inhibitor; Arondex); and naphthols such as those disclosed in WO 98/50347. [1043] Additional antiretroviral agents include hydroxyurea-like compunds such as BCX- 34 (a purine nucleoside phosphorylase inhibitor; Biocryst); ribonucleotide reductase inhibitors such as DIDOX™ (Molecules for Health); inosine monophosphate dehydrogenase (IMPDH) inhibitors sucha as VX-497 (Vertex); and mycopholic acids such as CellCept (mycophenolate mofetil; Roche). [1044] Additional antiretroviral agents include inhibitors of viral integrase, inhibitors of viral genome nuclear translocation such as arylene bis(methylketone) compounds; inhibitors of HIV entry such as AOP-RANTES, NNY-RANTES, RANTES-IgG fusion protein, soluble complexes of RANTES and glycosaminoglycans (GAG), and AMD-3100; nucleocapsid zinc finger inhibitors such as dithiane compounds; targets of HIV Tat and Rev; and pharmacoenhancers such as ABT-378. [1045] Other antiretroviral therapies and adjunct therapies include cytokines and lymphokines such as MJP-lα, MlP-lβ, SDF-lα, IL-2, PROLEUKTN™ (aldesleukin/L2- 7001; Chiron), JL-4, IL-10, IL-12, and IL-13; interferons such as IFN-α2a; antagonists of TNFs, NFKB, GM-CSF, M-CSF, and IL-10; agents that modulate immune activation such as cyclosporin and prednisone; vaccines such as Remune™ (HIV Immunogen), APL 400-003 (Apollon), recombinant gpl20 and fragments, bivalent (B/E) recombinant envelope glycoprotein, rgpl20CM235, MN rgpl20, SF-2 rgpl20, gpl20/soluble CD4 complex, Delta JR-FL protein, branched synthetic peptide derived from discontinuous gpl20 C3/C4 domain, fusion-competent immunogens, and Gag, Pol, Nef, and Tat vaccines; gene-based therapies such as genetic suppressor elements (GSEs; WO 98/54366), and intrakines (genetically modified CC chemokines targetted to the ER to block surface expression of newly synthesized CCR5 (Yang et al, PNAS 94:11561-12 (1997); Chen et al, Nat. Med. 3:1110-16 (1997)); antibodies such as the anti-CXCR4 antibody 12G5, the anti-CCR5 antibodies 2D7, 5C7, PA8, PA9, PA10, PAH, PA12, and PA14, the anti-CD4 antibodies Q4120 and RPA- T4, the anti-CCR3 antibody 7B11, the anti-gpl20 antibodies 17b, 48d, 447-52D, 257-D, 268- D and 50.1, anti-Tat antibodies, anti-TNF-α antibodies, and monoclonal antibody 33 A; aryl hydrocarbon (AH) receptor agonists and antagonists such as TCDD, 3,3',4,4',5- pentachlorobiphenyl, 3,3',4,4'-tetrachlorobiphenyl, and α-naphthoflavone (WO 98/30213); and antioxidants such as γ-L-glutamyl-L-cysteine ethyl ester (γ-GCE; WO 99/56764). [1046] In a further embodiment, the Therapeutics of the invention are administered in combination with an antiviral agent. Antiviral agents that may be administered with the Therapeutics ofthe invention include, but are not limited to, acyclovir, ribavirin, amantadine, and remantidine. [1047] In other embodiments, Therapeutics of the invention may be administered in combination with anti-opportunistic infection agents. Anti-opportunistic agents that may be administered in combination with the Therapeutics of the invention, include, but are not limited to, TRIMETHOPPJM-SULFAMETHOXAZOLE™, DAPSONE™, PENTAMIDINE™, ATOVAQUONE™, ISONIAZID™, RJPAMPIN™, PYRAZINAMIDE™, ETHAMBUTOL™, RTFABUTIN™, CLARITHROMYCIN™, AZITHROMYCEN™, GANCICLOVIR™, FOSCARNET™, CIDOFOVIR™, FLUCONAZOLE™, ITRACONAZOLE™, KETOCONAZOLE™, ACYCLOVIR™, FAMCICOLVIR™, PYR ETHAM E™, LEUCOVORIN™, NEUPOGEN™ (filgrastim/G-CSF), and LEUKINE™ (sargramostim/GM-CSF). In a specific embodiment, Therapeutics of the invention are used in any combination with TRIMETHOPPJM-SULFAMETHOXAZOLE™, DAPSONE™, PENTAMIDINE™, and/or ATOVAQUONE™ to prophylactically treat or prevent an opportunistic Pneumocystis carinii pneumonia infection. In another specific embodiment, Therapeutics of the invention are used in any combination with ISONIAZID™, RIFAMPIN™, PYRAZINAMIDE™, and/or ETHAMBUTOL™ to prophylactically treat or prevent an opportunistic Mycobacterium avium complex infection. In another specific embodiment, Therapeutics ofthe invention are used in any combination with RJFABUTIN™, CLARITHROMYCIN™, and/or AZITHROMYCIN™ to prophylactically treat or prevent an opportunistic Mycobacterium tuberculosis infection. In another specific embodiment, Therapeutics of the invention are used in any combination with GANCICLOVIR™, FOSCARNET™, and/or CIDOFOVIR™ to prophylactically treat or prevent an opportunistic cytomegalovirus infection, h another specific embodiment, Therapeutics of the invention are used in any combination with FLUCONAZOLE™, ITRACONAZOLE™, and/or KETOCONAZOLE™ to prophylactically treat or prevent an opportunistic fungal infection. In another specific embodiment, Therapeutics of the invention are used in any combination with ACYCLOVIR™ and/or FAMCICOLVIR™ to prophylactically treat or prevent an opportunistic herpes simplex virus type I and/or type II infection. In another specific embodiment, Therapeutics of the invention are used in any combination with PYRIMETHAMΓNE™ and/or LEUCOVORIN™ to prophylactically treat or prevent an opportunistic Toxoplasma gondii infection, h another specific embodiment, Therapeutics of the invention are used in any combination with LEUCOVORIN™ and/or NEUPOGEN™ to prophylactically treat or prevent an opportunistic bacterial infection. [1048] In a further embodiment, the Therapeutics of the invention are administered in combination with an antibiotic agent. Antibiotic agents that may be administered with the Therapeutics of the invention include, but are not limited to, amoxicillin, beta-lactamases, aminoglycosides, beta-lactam (glycopeptide), beta-lactamases, Clindamycin, chloramphenicol, cephalosporins, ciprofloxacin, erythromycin, fluoroquinolones, macrolides, metronidazole, penicillins, quinolones, rapamycin, rifampin, streptomycin, sulfonamide, tetracyclines, trimethoprim, trimethoprim-sulfamethoxazole, and vancomycin. [1049] In other embodiments, the Therapeutics of the invention are administered in combination with immunestimulants. Immunostimulants that may be administered in combination with the Therapeutics ofthe invention include, but are not limited to, levamisole (e.g., ERGAMISOL™), isoprinosine (e.g. INOSIPLEX™), interferons (e.g. interferon alpha), and interleukins (e.g., IL-2). [1050] In other embodiments, Therapeutics of the mvention are administered in combination with immunosuppressive agents, immunosuppressive agents that may be administered in combination with the Therapeutics of the invention include, but are not limited to, steroids, cyclosporine, cyclosporine analogs, cyclophosphamide methylprednisone, prednisone, azathioprine, FK-506, 15-deoxyspergualin, and other immunosuppressive agents that act by suppressing the function of responding T cells. Other immunosuppressive agents that may be administered in combination with the Therapeutics of the invention include, but are not limited to, prednisolone, methotrexate, thalidomide, methoxsalen, rapamycin, leflunomide, mizoribine (BMDINiN™), brequinar, deoxyspergualin, and azaspirane (SKF 105685), ORTHOCLONE OKT® 3 (muromonab- CD3), SANDIMMUNE™, NEORAL™, SANGDYA™ (cyclosporine), PROGRAF® (FK506, tacrolimus), CELLCEPT® (mycophenolate motefil, of which the active metabolite is mycophenolic acid), IMURAN™ (azathioprine), glucocorticosteroids, adrenocortical steroids such as DELTASONE™ (prednisone) and HYDELTRASOL™ (prednisolone), FOLEX™ and MEXATE™ (methotrxate), OXSORALEN-ULTRA™ (methoxsalen) and RAPAMUNE™ (sirolimus). In a specific embodiment, immunosuppressants may be used to prevent rejection of organ or bone marrow transplantation. [1051] In an additional embodiment, Therapeutics of the invention are administered alone or in combination with one or more intravenous immune globulin preparations. Intravenous immune globulin preparations that may be administered with the Therapeutics of the invention include, but not limited to, GAMMAR™, IVEEGAM™, SANDOGLOBULIN™, GAMMAGARD S/D™, ATGAM™ (antithymocyte glubulin), and GAMIMUNE™. In a specific embodiment, Therapeutics of the invention are administered in combination with intravenous immune globulin preparations in transplantation therapy (e.g., bone marrow transplant). [1052] In certain embodiments, the Therapeutics of the invention are administered alone or in combination with an anti-inflammatory agent. Anti-inflammatory agents that may be administered with the Therapeutics of the invention include, but are not limited to, corticosteroids (e.g. betamethasone, budesonide, cortisone, dexamethasone, hydrocortisone, methylprednisolone, prednisolone, prednisone, and triamcinolone), nonsteroidal anti- inflammatory drugs (e.g., diclofenac, diflunisal, etodolac, fenoprofen, floctafenine, flurbiprofen, ibuprofen, indomethacin, ketoprofen, meclofenamate, mefenamic acid, meloxicam, nabumetone, naproxen, oxaprozin, phenylbutazone, piroxicam, sulindac, tenoxicam, tiaprofenic acid, and tolmetin.), as well as antihistamines, aminoarylcarboxyhc acid derivatives, arylacetic acid derivatives, arylbutyric acid derivatives, arylcarboxylic acids, arylpropionic acid derivatives, pyrazoles, pyrazolones, salicylic acid derivatives, thiazinecarboxamides, e-acetamidocaproic acid, S-adenosylmethionine, 3-amino-4- hydroxybutyric acid, amixetrine, bendazac, benzydamine, bucolome, difenpiramide, ditazol, emorfazone, guaiazulene, nabumetone, nimesulide, orgotein, oxaceprol, paranyline, perisoxal, pifoxime, proquazone, proxazole, and tenidap. [1053] In an additional embodiment, the compositions of the invention are administered alone or in combination with an anti-angiogenic agent. Anti-angiogenic agents that may be administered with the compositions of the invention include, but are not limited to, Angiostatin (Entremed, Rockville, MD), Troponin-1 (Boston Life Sciences, Boston, MA), anti-Invasive Factor, retinoic acid and derivatives thereof, paclitaxel (Taxol), Suramin, Tissue Inhibitor of Metalloproteinase-1, Tissue Inhibitor of Metalloproteinase-2, NEGI, Plasminogen Activator Inhibitor- 1, Plasminogen Activator Inlιibitor-2, and various forms of the lighter "d group" transition metals. [1054] Lighter "d group" transition metals include, for example, vanadium, molybdenum, tungsten, titanium, niobium, and tantalum species. Such transition metal species may form transition metal complexes. Suitable complexes of the above-mentioned transition metal species include oxo transition metal complexes. [1055] Representative examples of vanadium complexes include oxo vanadium complexes such as vanadate and vanadyl complexes. Suitable vanadate complexes include metavanadate and orthovanadate complexes such as, for example, ammonium metavanadate, sodium metavanadate, and sodium orthovanadate. Suitable vanadyl complexes include, for example, vanadyl acetylacetonate and vanadyl sulfate including vanadyl sulfate hydrates such as vanadyl sulfate mono- and trihydrates. [1056] Representative examples of tungsten and molybdenum complexes also include oxo complexes. Suitable oxo tungsten complexes include tungstate and tungsten oxide complexes. Suitable tungstate complexes include ammonium tungstate, calcium tungstate, sodium tungstate dihydrate, and tungstic acid. Suitable tungsten oxides include tungsten (IN) oxide and tungsten (Nl) oxide. Suitable oxo molybdenum complexes include molybdate, molybdenum oxide, and molybdenyl complexes. Suitable molybdate complexes include ammonium molybdate and its hydrates, sodium molybdate and its hydrates, and potassium molybdate and its hydrates. Suitable molybdenum oxides include molybdenum (Nl) oxide, molybdenum (Nl) oxide, and molybdic acid. Suitable molybdenyl complexes include, for example, molybdenyl acetylacetonate. Other suitable tungsten and molybdenum complexes include hydroxo derivatives derived from, for example, glycerol, tartaric acid, and sugars. [1057] A wide variety of other anti-angiogenic factors may also be utilized within the context of the present invention. Representative examples include, but are not limited to, platelet factor 4; protamine sulphate; sulphated chitin derivatives (prepared from queen crab shells), (Murata et al., Cancer Res. 51:22-26, (1991)); Sulphated Polysaccharide Peptidoglycan Complex (SP- PG) (the function of this compound may be enhanced by the presence of steroids such as estrogen, and tamoxifen citrate); Staurosporine; modulators of matrix metabolism, including for example, proline analogs, cishydroxyproline, d,L-3,4- dehydroproline, Thiaproline, alpha,alpha-dipyridyl, aminopropionitrile fumarate; 4-propyl-5- (4-pyridinyl)-2(3H)-oxazolone; Methotrexate; Mitoxantrone; Heparin; Interferons; 2 Macroglobulin-serum; ChIMP-3 (Pavloff et al, J. Bio. Chem. 267:17321-17326, (1992)); Chymostatin (Tomkinson et al, Biochem J. 286:475-480, (1992)); Cyclodextrin Tetradecasulfate; Eponemycin; Camptothecin; Fumagillin (Ingber et al, Nature 348:555-557, (1990)); Gold Sodium Thiomalate ("GST"; Matsubara and Ziff, J. Clin. Invest. 79:1440- 1446, (1987)); anticoUagenase-serum; alpha2-antiplasmin (Holmes et al., J. Biol. Chem. 262(4):1659-1664, (1987)); Bisantrene (National Cancer Institute); Lobenzarit disodium (N- (2)-carboxyphenyl-4- chloroanthronilic acid disodium or "CCA"; (Takeuchi et al., Agents Actions 36:312-316, (1992)); and metalloproteinase inhibitors such as BB94. [1058] Additional anti-angiogenic factors that may also be utilized within the context of the present invention include Thalidomide, (Celgene, Warren, NJ); Angiostatic steroid; AGM-1470 (H. Brem and J. Folkman JPediatr. Surg. 28:445-51 (1993)); an integrin alpha v beta 3 antagonist (C. Storgard et al., J Clin. Invest. 103:47-54 (1999)); carboxynaminolmidazole; Carboxyamidotriazole (CAI) (National Cancer Institute, Bethesda, MD); Conbretastatin A-4 (CA4P) (OXiGENE, Boston, MA); Squalamine (Magainin Pharmaceuticals, Plymouth Meeting, PA); TNP-470, (Tap Pharmaceuticals, Deerfield, IL) ZD-0101 AstraZeneca (London, UK); APRA (CT2584); Benefin, Byrostatin-1 (SC339555) CGP-41251 (PKC 412); CM101; Dexrazoxane (ICRF187); DMXAA; Endostatin Flavopridiol; Genestein; GTE; ImmTher; Iressa (ZD1839); Octreotide (Somatostatin) Panretin; Penacillamine; Photopoint; PI-88; Prinomastat (AG-3340) Purlytin; Suradista (FCE26644); Tamoxifen (Nolvadex); Tazarotene; Tetrathiomolybdate; Xeloda (Capecitabine); and 5-Fluorouracil. [1059] Anti-angiogenic agents that may be administed in combination with the compounds of the invention may work through a variety of mechanisms including, but not limited to, inhibiting proteolysis of the extracellular matrix, blocking the function of endothelial cell-extracellular matrix adhesion molecules, by antagonizing the function of angiogenesis inducers such as growth factors, and inhibiting integrin receptors expressed on proliferating endothelial cells. Examples of anti-angiogenic inhibitors that interfere with extracellular matrix proteolysis and which may be administered in combination with the compositons of the invention include, but are not lmited to, AG-3340 (Agouron, La Jolla, CA), BAY-12-9566 (Bayer, West Haven, CT), BMS-275291 (Bristol Myers Squibb, Princeton, NJ), CGS-27032A (Novartis, East Hanover, NJ), Marimastat (British Biotech, Oxford, UK), and Metastat (Aeterna, St-Foy, Quebec). Examples of anti-angiogenic inhibitors that act by blocking the function of endothelial cell-extracellular matrix adhesion molecules and which may be administered in combination with the compositons of the invention include, but are not Imited to, EMD-121974 (Merck KcgaA Darmstadt, Germany) and Nitaxin (Ixsys, La Jolla, CA/Medimmune, Gaithersburg, MD). Examples of anti- angiogenic agents that act by directly antagonizing or inhibiting angiogenesis inducers and which may be administered in combination with the compositons of the invention include, but are not Imited to, Angiozyme (Ribozyme, Boulder, CO), Anti-NEGF antibody (Genentech, S. San Francisco, CA), PTK-787/ZK-225846 (Νovartis, Basel, Switzerland), SU-101 (Sugen, S. San Francisco, CA), SU-5416 (Sugen/ Pharmacia Upjohn, Bridgewater, ΝJ), and SU-6668 (Sugen). Other anti-angiogenic agents act to indirectly inhibit angiogenesis. Examples of indirect inhibitors of angiogenesis which may be administered in combination with the compositons of the invention include, but are not limited to, JJVI-862 (Cytran, Kirkland, WA), fr terferon-alpha, IL-12 (Roche, Νutley, ΝJ), and Pentosan polysulfate (Georgetown University, Washington, DC). [1060] In particular embodiments, the use of compositions of the invention in combination with anti-angiogenic agents is contemplated for the treatment, prevention, and/or amelioration of an autoimmune disease, such as for example, an autoimmune disease described herein. [1061] hi a particular embodiment, the use of compositions of the invention in combination with anti-angiogenic agents is contemplated for the treatment, prevention, and/or amelioration of arthritis. In a more particular embodiment, the use of compositions of the invention in combination with anti-angiogenic agents is contemplated for the treatment, prevention, and/or amelioration of rheumatoid arthritis. [1062] In another embodiment, the polynucleotides encoding' a polypeptide of the present invention are administered in combination with an angiogenic protein, or polynucleotides encoding an angiogenic protein. Examples of angiogenic proteins that may be administered with the compositions of the invention include, but are not limited to, acidic and basic fibroblast growth factors, NEGF-1, NEGF-2, NEGF-3, epidermal growth factor alpha and beta, platelet-derived endothelial cell growth factor, platelet-derived growth factor, tumor necrosis factor alpha, hepatocyte growth factor, insulin-like growth factor, colony stimulating factor, macrophage colony stimulating factor, granulocyte/macrophage colony stimulating factor, and nitric oxide synthase. [1063] In additional embodiments, compositions of the invention are administered in combination with a chemotherapeutic agent. Chemotherapeutic agents that may be administered with the Therapeutics ofthe invention include, but are not limited to alkylating agents such as nitrogen mustards (for example, Mechlorethamine, cyclophosphamide, Cyclophosphamide Ifosfamide, Melphalan (L-sarcolysin), and Chlorambucil), ethylenimines and methylmelamines (for example, Hexamethylmelamine and Thiotepa), alkyl sulfonates (for example, Busulfan), nitrosoureas (for example, Carmustine (BCNU), Lomustine (CCNU), Semustine (methyl-CCNU), and Streptozocin (streptozotocin)), triazenes (for example, Dacarbazine (DTIC; dimethyltriazenoimidazolecarboxamide)), folic acid analogs (for example, Methotrexate (amethopterin)), pyrimidine analogs (for example, Fluorouacil (5- fluorouracil; 5-FU), Floxuridine (fluorodeoxyuridine; FudR), and Cytarabine (cytosine arabinoside)), purine analogs and related inhibitors (for example, Mercaptopurine (6- mercaptopurine; 6-MP), Thioguanine (6-thioguanine; TG), and Pentostatin (2'- deoxycoformycin)), vinca alkaloids (for example, Vinblastine (VLB, vinblastine sulfate)) and Vincristine (vincristine sulfate)), epipodophyllotoxins (for example, Etoposide and Teniposide), antibiotics (for example, Dactinomycin (actinomycin D), Daunorubicin (daunomycin; rubidomycin), Doxorubicin, Bleomycin, Plicamycin (mithramycin), and Mitomycin (mitomycin C), enzymes (for example, L-Asparaginase), biological response modifiers (for example, Interferon-alpha and interferon-alpha-2b), platinum coordination compounds (for example, Cisplatin (cis-DDP) and Carboplatin), anthracenedione (Mitoxantrone), substituted ureas (for example, Hydroxyurea), methylhydrazine derivatives (for example, Procarbazine (N-methylhydrazine; MAT), adrenocorticosteroids (for example, Prednisone), progestins (for example, Hydroxyprogesterone caproate, Medroxyprogesterone, Medroxyprogesterone acetate, and Megestrol acetate), estrogens (for example, Diethylstilbestrol (DES), Diethylstilbestrol diphosphate, Estradiol, and Ethinyl estradiol), antiestrogens (for example, Tamoxifen), androgens (Testosterone proprionate, and Fluoxymesterone), antiandrogens (for example, Flutamide), gonadotropin-releasing horomone analogs (for example, Leuprolide), other hormones and hormone analogs (for example, methyltestosterone, estramustine, estramustine phosphate sodium, chlorotrianisene, and testolactone), and others (for example, dicarbazine, glutamic acid, and mitotane). [1064] In one embodiment, the compositions of the invention are administered in combination with one or more of the following drugs: infliximab (also known as Remicade™ Centocor, Inc.), Trocade (Roche, RO-32-3555), Leflunomide (also known as Arava™ from Hoechst Marion Roussel), Kineret™ (an IL-1 Receptor antagonist also known as Anakinra from Amgen, Inc.) [1065] In a specific embodiment, compositions of the invention are administered in combination with CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone) or combination of one or more of the components of CHOP. In one embodiment, the compositions of the invention are administered in combination with anti-CD20 antibodies, human monoclonal anti-CD20 antibodies. In another embodiment, the compositions of the invention are admimstered in combination with anti-CD20 antibodies and CHOP, or anti- CD20 antibodies and any combination of one or more of the components of CHOP, particularly cyclophosphamide and/or prednisone. In a specific embodiment, compositions of the invention are administered in combination with Rituximab. In a further embodiment, compositions ofthe invention are admimstered with Rituximab and CHOP, or Rituximab and any combination of one or more ofthe components of CHOP, particularly cyclophosphamide and/or prednisone. In a specific embodiment, compositions of the invention are administered in combination with tositumomab. In a further embodiment, compositions of the invention are administered with tositumomab and CHOP, or tositumomab and any combination of one or more ofthe components of CHOP, particularly cyclophosphamide and/or prednisone. The anti-CD20 antibodies may optionally be associated with radioisotopes, toxins or cytotoxic prodrags. [1066] In another specific embodiment, the compositions of the invention are administered in combination Zevalin™. In a further embodiment, compositions of the invention are administered with Zevalin™ and CHOP, or Zevalin™ and any combination of one or more of the components of CHOP, particularly cyclophosphamide and/or prednisone. Zevalin™ may be associated with one or more radisotopes. Particularly preferred isotopes are 90 Y and ι n In. [1067] In an additional embodiment, the Therapeutics ofthe invention are administered in combination with cytokines. Cytokines that may be administered with the Therapeutics of the invention include, but are not limited to, IL2, IL3, IL4, IL5, IL6, IL7, JL10, IL12, IL13, IL15, anti-CD40, CD40L, IFN-gamma and TNF-alpha. In another embodiment, Therapeutics of the invention may be administered with any interleukin, including, but not limited to, IL-lalpha, E -lbeta, IL-2, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-11, IL-12, IL-13, IL-14, E -15, IL-16, IL-17, IL-18, IL-19, IL-20, and IL-21. [1068] In one embodiment, the Therapeutics of the invention are administered in combination with members of the TNF family. TNF, TNF-related or TNF-like molecules that may be administered with the Therapeutics of the invention include, but are not limited to, soluble forms of TNF-alpha, lymphotoxin-alpha (LT-alpha, also known as TNF-beta), LT- beta (found in complex heterotrimer LT-alpha2-beta), OPGL, FasL, CD27L, CD30L, CD40L, 4-1BBL, DcR3, OX40L, TNF-gamma (International Publication No. WO 96/14328), AJJVI-I (International Publication No. WO 97/33899), endokine-alpha (International Publication No. WO 98/07880), OPG, and neutrokine-alpha (International Publication No. WO 98/18921, OX40, and nerve growth factor (NGF), and soluble forms of Fas, CD30, CD27, CD40 and 4-IBB, TR2 (International Publication No. WO 96/34095), DR3 (International Publication No. WO 97/33904), DR4 (International Publication No. WO 98/32856), TR5 (International Publication No. WO 98/30693), TRANK, TR9 (international Publication No. WO 98/56892),TR10 (International Publication No. WO 98/54202), 312C2 (Intemational Publication No. WO 98/06842), and TR12, and soluble forms CD154, CD70, and CD153. [1069] In an additional embodiment, the Therapeutics ofthe invention are administered in combination with angiogenic proteins. Angiogenic proteins that may be administered with the Therapeutics of the invention include, but are not limited to, Glioma Derived Growth Factor (GDGF), as disclosed in European Patent Number EP-399816; Platelet Derived Growth Factor-A (PDGF-A), as disclosed in European Patent Number EP-682110; Platelet Derived Growth Factor-B (PDGF-B), as disclosed in European Patent Number EP-282317; Placental Growth Factor (P1GF), as disclosed in International Publication Number WO 92/06194; Placental Growth Factor-2 (P1GF-2), as disclosed in Hauser et al., Growth Factors, 4:259-268 (1993); Vascular Endothelial Growth Factor (VEGF), as disclosed in International Publication Number WO 90/13649; Vascular Endothelial Growth Factor-A (VEGF-A), as disclosed in European Patent Number EP-506477; Vascular Endothelial Growth Factor-2 (VEGF-2), as disclosed in International Publication Number WO 96/39515; Vascular Endothelial Growth Factor B (VEGF-3); Vascular Endothelial Growth Factor B-186 (VEGF- B186), as disclosed in International Publication Number WO 96/26736; Vascular Endothelial Growth Factor-D (VEGF-D), as disclosed in International Publication Number WO 98/02543; Vascular Endothelial Growth Factor-D (VEGF-D), as disclosed in International Publication Number WO 98/07832; and Vascular Endothelial Growth Factor-E (VEGF-E), as disclosed in German Patent Number DE19639601. The above mentioned references are herein incorporated by reference in their entireties. [1070] In an additional embodiment, the Therapeutics ofthe invention are admimstered in combination with Fibroblast Growth Factors. Fibroblast Growth Factors that may be administered with the Therapeutics of the invention include, but are not limited to, FGF-1, FGF-2, FGF-3, FGF-4, FGF-5, FGF-6, FGF-7, FGF-8, FGF-9, FGF-10, FGF-11, FGF-12, FGF-13, FGF-14, and FGF-15. [1071] hi an additional embodiment, the Therapeutics ofthe invention are administered in combination with hematopoietic growth factors. Hematopoietic growth factors that may be administered with the Therapeutics of the invention include, but are not limited to, granulocyte macrophage colony stimulating factor (GM-CSF) (sargramostim, LEUKJJNEE™, PROKΓNE™), granulocyte colony stimulating factor (G-CSF) (filgrastim, NEUPOGEN™), macrophage colony stimulating factor (M-CSF, CSF-1) erythropoietin (epoetin alfa, EPOGEN™, PROCRIT™), stem cell factor (SCF, c-kit ligand, steel factor), megakaryocyte colony stimulating factor, PIXY321 (a GMCSF/IL-3 fusion protein), interleukins, especially any one or more of IL-1 through IL-12, interferon-gamma, or thrombopoietin. [1072] In certain embodiments, Therapeutics of the present invention are administered in combination with adrenergic blockers, such as, for example, acebutolol, atenolol, betaxolol, bisoprolol, carteolol, labetalol, metoprolol, nadolol, oxprenolol, penbutolol, pindolol, propranolol, sotalol, and timolol. [1073] In another embodiment, the Therapeutics of the invention are administered in combination with an antiarrhythmic drug (e.g., adenosine, amidoarone, bretylium, digitalis, digoxin, digitoxin, diliazem, disopyramide, esmolol, flecainide, lidocaine, mexiletine, moricizine, phenytoin, procainamide, N-acetyl procainamide, propafenone, propranolol, quinidine, sotalol, tocainide, and verapamil). [1074] In another embodiment, the Therapeutics of the invention are administered in combination with diuretic agents, such as carbonic anhydrase-inhibiting agents (e.g., acetazolamide, dichlorphenamide, and methazolamide), osmotic diuretics (e.g., glycerin, isosorbide, mannitol, and urea), diuretics that inhibit Na + -K + -2Cι " symport (e.g., furosemide, bumetanide, azosemide, piretanide, tripamide, ethacrynic acid, muzolimine, and torsemide), thiazide and thiazide-like diuretics (e.g., bendroflumethiazide, benzthiazide, chlorothiazide, hydrochlorothiazide, hydroflumethiazide, methyclothiazide, polytl iazide, trichormethiazide, chlorthalidone, indapamide, metolazone, and quinethazone), potassium sparing diuretics (e.g., amiloride and triamterene), and mineralcorticoid receptor antagonists (e.g., spironolactone, canrenone, and potassium canrenoate). [1075] hi one embodiment, the Therapeutics of the invention are administered in combination with treatments for endocrine and or hormone imbalance disorders. Treatments for endocrine and/or hormone imbalance disorders include, but are not limited to, 127 I, radioactive isotopes of iodine such as I and I; recombinant growth hormone, such as HUMATROPE™ (recombinant somatropin); growth hormone analogs such as PROTROPIN™ (somatrem); dopamine agonists such as PARLODEL™ (bromocriptine); somatostatin analogs such as SANDOSTATIN™ (octreotide); gonadotropin preparations such as PREGNYL™, A.P.L.™ and PROFASF M (chorionic gonadotropin (CG)), PERGONAL™ (menotropins), and METRODIN™ (urofollitropin (uFSH)); synthetic human gonadotropin releasing hormone preparations such as FACTREL™ and LUTREPULSE™ (gonadorelin hydrochloride); synthetic gonadotropin agonists such as LUPRON™ (leuprolide acetate), SUPPRELIN™ (histrelin acetate), SYNAREL™ (nafarelin acetate), and ZOLADEX™ (goserelin acetate); synthetic preparations of thyrotropin-releasing hormone such as RELEFACT TRH™ and THYPINONE™ (protirelin); recombinant human TSH such as THYROGEN™; synthetic preparations of the sodium salts of the natural isomers of thyroid hormones such as L-T 4 ™, SYNTHROID™ and LEVOTHROID™ (levothyroxine sodium), L-T 3 ™, CYTOMEL™ and TRIOSTAT™ (liothyroine sodium), and THYROLAR™ (liotrix); antithyroid compounds such as 6-72-propylthiouracil (propylthiouracil), l-methyl-2- mercaptoimidazole and TAPAZOLE™ (methimazole), NEO-MERCAZOLE™ (carbimazole); beta-adrenergic receptor antagonists such as propranolol and esmolol; Ca channel blockers; dexamethasone and iodinated radiological contrast agents such as TELEPAQUE™ (iopanoic acid) and ORAGRAFIN™ (sodium ipodate). [1076] Additional treatments for endocrine and/or hormone imbalance disorders include, but are not limited to, estrogens or congugated estrogens such as ESTRACE™ (estradiol), ESTINYL™ (ethinyl estradiol), PREMARIN™, ESTRATAB™, ORTHO-EST™, OGEN™ and estropipate (estrone), ESTRONIS™ (quinestrol), ESTRADERM™ (estradiol), DELESTROGEΝ™ and NALERGEΝ™ (estradiol valerate), DEPO-ESTRADIOL CYPIOΝATE™ and ESTROJECT LA™ (estradiol cypionate); antiestrogens such as ΝOLNADEX™ (tamoxifen), SEROPHENE™ and CLOMID™ (clomiphene); progestins such as DURALUTIN™ (hydroxyprogesterone caproate), MPA™ and DEPO-PROVERA™ (medroxyprogesterone acetate), PROVERA™ and CYCRTN™ (MPA), MEGACE™ (megestrol acetate), NORLUTIN™ (norethindrone), and NORLUTATE™ and AYGESTIN™ (norethindrone acetate); progesterone implants such as NORPLANT SYSTEM™ (subdermal implants of norgestrel); antiprogestins such as RU 486™ (mifepristone); hormonal contraceptives such as ENOVID™ (norethynodrel plus mestranol), PROGESTASERT™ (intrauterine device that releases progesterone), LOESTRIN™, BREVICON™, MODICON™, GENORA™, NELONA™, NORINYL™, OVACON-35™ and OVACON-50™ (ethinyl estradio norethindrone), LEVLEN™, NORDETTE™, TRI-LEVLEN™ and TRJJPHASIL- 21™ (ethinyl estradiol/levonorgestrel) LO/OVRAL™ and ONRAL™ (ethinyl estradiol/norgestrel), DEMULEΝ™ (ethinyl estradiol/ethynodiol diacetate), ΝORIΝYL™, ORTHO-ΝOVUM™, ΝORETHIΝ™, GEΝORA™, and ΝELOVA™ (norethindrone/mestranol), DESOGEΝ™ and ORTHO-CEPT™ (ethinyl estradiol/desogestrel), ORTHO-CYCLEΝ™ and ORTHO-TRICYCLEΝ™ (ethinyl estradiol/norgestimate), MICROΝOR™ and ΝOR-QD™ (norethindrone), and OVRETTE™ (norgestrel). [1077] Additional treatments for endocrine and/or hormone imbalance disorders include, but are not limited to, testosterone esters such as methenolone acetate and testosterone undecanoate; parenteral and oral androgens such as TESTOJECT-50™ (testosterone), TESTEX™ (testosterone propionate), DELATESTRYL™ (testosterone enanthate), DEPO- TESTOSTEROΝE™ (testosterone cypionate), DAΝOCRTΝE™ (danazol), HALOTESTIΝ™ (fluoxymesterone), ORETOΝ METHYL™, TESTRED™ and VIRJXOΝ™ (methyltestosterone), and OXAΝDRTΝ™ (oxandrolone); testosterone transdermal systems such as TESTODERM™; androgen receptor antagonist and 5-alpha-reductase inhibitors such as AΝDROCUR™ (cyproterone acetate), EULEXIΝ™ (flutamide), and PROSCAR™ (finasteride); adrenocorticotropic hormone preparations such as CORTROSYΝ™ (cosyntropin); adrenocortical steroids and their synthetic analogs such as ACLONATE™ (alclometasone dipropionate), CYCLOCORT™ (amcinonide), BECLONEΝT™ and NAΝCERTL™ (beclomethasone dipropionate), CELESTOΝE™ (betamethasone), BEΝISOΝE™ and UTICORT™ (betamethasone benzoate), DIPROSOΝE™ (betamethasone dipropionate), CELESTOΝE PHOSPHATE™ (betamethasone sodium phosphate), CELESTOΝE SOLUSPAΝ™ (betamethasone sodium phosphate and acetate), BETA-NAL™ and NALISOΝE™ (betamethasone valerate), TEMONATE™ (clobetasol propionate), CLODERM™ (clocortolone pivalate), CORTEF™ and HYDROCORTOΝE™ (cortisol (hydrocortisone)), HYDROCORTOΝE ACETATE™ (cortisol (hydrocortisone) acetate), LOCOID™ (cortisol (hydrocortisone) butyrate), HYDROCORTOΝE PHOSPHATE™ (cortisol (hydrocortisone) sodium phosphate), A-HYDROCORT™ and SOLU CORTEF™ (cortisol (hydrocortisone) sodium succinate), WESTCORT™ (cortisol (hydrocortisone) valerate), CORTISONE ACETATE™ (cortisone acetate), DESOWEN™ and TRIDESILON™ (desonide), TOPICORT™ (desoximetasone), DECADRON™ (dexamethasone), DECADRON LA™ (dexamethasone acetate), DECADRON PHOSPHATE™ and HEXADROL PHOSPHATE™ (dexamethasone sodium phosphate), FLORONE™ and MAXIFLOR™ (diflorasone diacetate), FLORTNEF ACETATE™ (fludrocortisone acetate), AEROBID™ and NASALIDE™ (flunisolide), FLUONID™ and SYNALAR™ (fluocinolone acetonide), LIDEX™ (fluocinonide), FLUOR-OP™ and FML™ (fluorometholone), CORDRAN™ (flurandrenolide), HALOG™ (halcinonide), HMS LIZUtFILM™ (medrysone), MEDROL™ (methylprednisolone), DEPO-MEDROL™ and MEDROL ACETATE™ (methylprednisone acetate), A-METHAPRED™ and SOLUMEDROL™ (methylprednisolone sodium succinate), ELOCON™ (mometasone furcate), HALDRONE™ (paramethasone acetate), DELTA-CORTEF™ (prednisolone), ECONOPRED™ (prednisolone acetate), HYDELTRASOL™ (prednisolone sodium phosphate), HYDELTRA-T.B.A™ (prednisolone tebutate), DELTASONE™ (prednisone), ARISTOCORT™ and KENACORT™ (triamcinolone), KENALOG™ (triamcinolone acetonide), ARISTOCORT™ and KENACORT DIACETATE™ (triamcinolone diacetate), and ARISTOSPAN™ (triamcinolone hexacetonide); inhibitors of biosynthesis and action of adrenocortical steroids such as CYTADREN™ (aminoglutethimide), NIZORAL™ (ketoconazole), MODRASTANE™ (trilostane), and METOPIRONE™ (metyrapone); [1078] Additional treatments for endocrine and/or hormone imbalance disorders include, but are not limited to bovine, porcine or human insulin or mixtures thereof; insulin analogs; recombinant human insulin such as HUMULIN™ and NOVOLIN™; oral hypoglycemic agents such as ORAMIDE™ and ORL ASE™ (tolbutamide), DIABDSfESE™ (chlorpropamide), TOLAMIDE™ and TOLINASE™ (tolazamide), DYMELOR™ (acetohexamide), glibenclamide, MICRONASE™, DIBETA™ and GLYNASE™ (glyburide), GLUCOTROL™ (glipizide), and DIAMICRON™ (gliclazide), GLUCOPHAGE™ (metformin), PRECOSE™ (acarbose), AMARYL™ (glimepiride), and ciglitazone; thiazolidinediones (TZDs) such as rosiglitazone, ANANDIA™ (rosiglitazone maleate) ACTOS™ (piogliatazone), and troglitazone; alpha-glucosidase inliibitors; bovine or porcine glucagon; somatostatins such as SAM OSTATIN™ (octreotide); and diazoxides such as PROGLYCEM™ (diazoxide). In still other embodiments, Therapeutics of the invention are administered in combination with one or more of the following: a biguanide antidiabetic agent, a glitazone antidiabetic agent, and a sulfonylurea antidiabetic agent. [1079] In one embodiment, the Therapeutics of the invention are administered in combination with treatments for uterine motility disorders. Treatments for uterine motility disorders include, but are not limited to, estrogen drugs such as conjugated estrogens (e.g., PREMAPJN ® and ESTRATAB ® ), estradiols (e.g., CLEVIARA ® and ALORA ® ), estropipate, and chlorotrianisene; progestin drugs (e.g., AMEN ® (medroxyprogesterone), MICRONOR ® (norethidrone acetate), PROMETRIUM ® progesterone, and megestrol acetate); and estrogen/progesterone combination therapies such as, for example, conjugated estrogens/medroxyprogesterone (e.g., PREMPRO™ and PREMPHASE ® ) and norethindrone acetate/ethinyl estsradiol (e.g., FEMHRT™). [1080] In an additional embodiment, the Therapeutics ofthe invention are administered in combination with drugs effective in treating iron deficiency and hypochromic anemias including but not limited to, ferrous sulfate (iron sulfate, FEOSOL™), ferrous fumarate (e.g. FEOSTAT™), ferrous gluconate (e.g., FERGON™), polysaccharide-iron complex (e.g. NIFEREX™), iron dextran injection (e.g., INFED™), cupric sulfate, pyroxidine, riboflavin Vitamin B 12 , cyancobalamin injection (e.g., REDISOL™, RUBRAMIN PC™) hydroxocobalamin, folic acid (e.g., FOLVITE™), leucovorin (folinic acid, 5-CHOH4PteGlu, citrovorum factor) or WELLCOVOPJN (Calcium salt of leucovorin), transferrin or ferritin. [1081] In certain embodiments, the Therapeutics of the invention are administered in combination with agents used to treat psychiatric disorders. Psychiatric drugs that may be administered with the Therapeutics of the invention include, but are not limited to, antipsychotic agents (e.g., chlorpromazine, chlorprothixene, clozapine, fluphenazine, haloperidol, loxapine, mesoridazine, molindone, olanzapine, perphenazine, pimozide, quetiapine, risperidone, thioridazine, thiothixene, trifluoperazine, and trifiupromazine), antimanic agents (e.g., carbamazepine, divalproex sodium, lithium carbonate, and lithium citrate), antidepressants (e.g., amitriptyline, amoxapine, bupropion, citalopram, clomipramine, desipramine, doxepin, fluvoxamine, fluoxetine, imipramine, isocarboxazid, maprotiline, mirtazapine, nefazodone, nortriptyline, paroxetine, phenelzine, protriptyline, sertraline, tranylcypromine, trazodone, trimipramine, and venlafaxine), antianxiety agents (e.g., alprazolam, buspirone, chlordiazepoxide, clorazepate, diazepam, halazepam, lorazepam, oxazepam, and prazepam), and stimulants (e.g., d-amphetamine, methylphenidate, and pemoline). [1082] In other embodiments, the Therapeutics of the invention are administered in combination with agents used to treat neurological disorders. Neurological agents that may be administered with the Therapeutics of the invention include, but are not limited to, antiepileptic agents (e.g., carbamazepine, clonazepam, ethosuximide, phenobarbital, phenytoin, primidone, valproic acid, divalproex sodium, felbamate, gabapentin, lamotrigine, levetiracetam, oxcarbazepine, tiagabine, topiramate, zonisamide, diazepam, lorazepam, and clonazepam), antiparkinsonian agents (e.g., levodopa/carbidopa, selegiline, amantidine, bromocriptine, pergolide, ropinirole, pramipexole, benztropine; biperiden; ethopropazine; procyclidine; trihexyphenidyl, tolcapone), and ALS therapeutics (e.g. riluzole). [1083] hi another embodiment, Therapeutics of the invention are administered in combination with vasodilating agents and/or calcium channel blocking agents. Vasodilating agents that may be administered with the Therapeutics of the invention include, but are not limited to, Angiotensin Converting Enzyme (ACE) inhibitors (e.g., papaverine, isoxsuprine, benazepril, captopril, cilazapril, enalapril, enalaprilat, fosinopril, lisinopril, moexipril, perindopril, quinapril, ramipril, spirapril, trandolapril, and nylidrin), and nitrates (e.g., isosorbide dinitrate, isosorbide mononitrate, and nitroglycerin). Examples of calcium channel blocking agents that may be administered in combination with the Therapeutics of the invention include, but are not limited to amlodipine, bepridil, diltiazem, felodipine, flunarizine, isradipine, nicardipine, nifedipine, nimodipine, and verapamil. [1084] h certain embodiments, the Therapeutics of the invention are administered in combination with treatments for gastrointestinal disorders. Treatments for gastrointestinal disorders that may be administered with the Therapeutic ofthe invention include, but are not limited to, H 2 histamine receptor antagonists (e.g., TAGAMET™ (cimetidine), ZANTAC™ (ranitidine), PEPCTD™ (famotidine), and AXID™ (nizatidine)); inhibitors of H + , K + ATPase (e.g., PREVACrD™ (lansoprazole) and PPJLOSEC™ (omeprazole)); Bismuth compounds (e.g., PEPTO-BISMOL™ (bismuth subsalicylate) and DE-NOL™ (bismuth subcitrate)); various antacids; sucralfate; prostaglandin analogs (e.g. CYTOTEC™ (misoprostol)); muscarinic cholinergic antagonists; laxatives (e.g., surfactant laxatives, stimulant laxatives, saline and osmotic laxatives); antidiarrheal agents (e.g., LOMOTIL™ (diphenoxylate), MOTOFEN™ (diphenoxin), and IMODIUM™ (loperamide hydrochloride)), synthetic analogs of somatostatin such as SANDOSTATIN™ (octreotide), antiemetic agents (e.g., ZOFRAN™ (ondansetron), KYTRD ™ (granisetron hydrochloride), tropisetron, dolasetron, metoclopramide, chlorpromazine, perphenazine, prochlorperazine, promethazine, thiethylperazine, triflupromazine, domperidone, haloperidol, droperidol, trimethobenzamide, dexamethasone, methylprednisolone, dronabinol, and nabilone); D2 antagonists (e.g., metoclopramide, trimethobenzamide and chlorpromazine); bile salts; chenodeoxycholic acid; ursodeoxychohc acid; and pancreatic enzyme preparations such as pancreatin and pancrelipase. [1085] In additional embodiments, the Therapeutics of the invention are administered in combination with other therapeutic or prophylactic regimens, such as, for example, radiation therapy. Example 11 : Method of Treating Decreased Levels of the Polypeptide [1086] It will be appreciated that conditions caused by a decrease in the standard or normal expression level of a polypeptide in an individual can be treated by administering the polypeptide of the present invention, preferably in the secreted and/or soluble form. Thus, the invention also provides a method of treatment of an individual in need of an increased level of the polypeptide comprising administering to such an individual a pharmaceutical composition comprising an amount of the polypeptide to increase the activity level of the polypeptide in such an individual. [1087] For example, a patient with decreased levels of a polypeptide receives a daily dose 0.1-100 ug/kg of the polypeptide for six consecutive days. Preferably, the polypeptide is in the secreted form. The exact details of the dosing scheme, based on administration and formulation, are provided in Example 10. Example 12: Method of Treating Increased Levels of the Polypeptide [1088] Antisense technology is used to inhibit production of a polypeptide of the present invention. This technology is one example of a method of decreasing levels of a polypeptide, preferably a secreted form, due to a variety of etiologies, such as cancer. [1089] For example, a patient diagnosed with abnormally increased levels of a polypeptide is admimstered intravenously antisense polynucleotides at 0.5, 1.0, 1.5, 2.0 and 3.0 mg/kg day for 21 days. This treatment is repeated after a 7-day rest period if the treatment was well tolerated. The antisense polynucleotides of the present invention can be formulated using techniques and formulations described herein (e.g., see Example 10) or otherwise known in the art. Example 13: Method of Treatment Using Gene Therapy - Ex Vivo [1090] One method of gene therapy transplants fibroblasts, which are capable of expressing a polypeptide, onto a patient. Generally, fibroblasts are obtained from a subject by skin biopsy. The resulting tissue is placed in tissue-culture medium and separated into small pieces. Small chunks of the tissue are placed on a wet surface of a tissue culture flask, approximately ten pieces are placed in each flask. The flask is turned upside down, closed tight and left at room temperature over night. After 24 hours at room temperature, the flask is inverted and the chunks of tissue remain fixed to the bottom of the flask and fresh media (e.g., Ham's F12 media, with 10% FBS, penicillin and streptomycin) is added. The flasks are then incubated at 37°C for approximately one week. [1091] At this time, fresh media is added and subsequently changed every several days. After an additional two weeks in culture, a monolayer of fibroblasts emerge. The monolayer is trypsinized and scaled into larger flasks. [1092] pMV-7 (Kirschmeier, P.T. et al., DNA, 7:219-25 (1988)), flanked by the long terminal repeats of the Moloney murine sarcoma virus, is digested with EcoRI and Hindiπ and subsequently treated with calf intestinal phosphatase. The linear vector is fractionated on agarose gel and purified, using glass beads. [1093] The cDNA encoding a polypeptide ofthe present invention can be amplified using PCR primers which correspond to the 5' and 3' end sequences respectively as set forth in Example 1 using primers and having appropriate restriction sites and initiation/stop codons, if necessary. Preferably, the 5' primer contains an EcoRI site and the 3' primer includes a Hindiπ site. Equal quantities of the Moloney murine sarcoma virus linear backbone and the amplified EcoRI and HindlTJ fragment are added together, in the presence of T4 DNA ligase. The resulting mixture is maintained under conditions appropriate for ligation of the two fragments. The ligation mixture is then used to transform bacteria HB101, which are then plated onto agar containing kanamycin for the purpose of confirming that the vector has the gene of interest properly inserted. [1094] The amphotropic pA317 or GP+aml2 packaging cells are grown in tissue culture to confluent density in Dulbecco's Modified Eagles Medium (DMEM) with 10% calf serum (CS), penicillin and streptomycin. The MSV vector containing the gene is then added to the media and the packaging cells transduced with the vector. The packaging cells now produce infectious viral particles containing the gene (the packaging cells are now referred to as producer cells). [1095] Fresh media is added to the transduced producer cells, and subsequently, the media is harvested from a 10 cm plate of confluent producer cells. The spent media, containing the infectious viral particles, is filtered through a millipore filter to remove detached producer cells and this media is then used to infect fibroblast cells. Media is removed from a sub- confluent plate of fibroblasts and quickly replaced with the media from the producer cells. This media is removed and replaced with fresh media. If the titer of virus is high, then virtually all fibroblasts will be infected and no selection is required. If the titer is very low, then it is necessary to use a retroviral vector that has a selectable marker, such as neo or his. Once the fibroblasts have been efficiently infected, the fibroblasts are analyzed to determine whether protein is produced. [1096] The engineered fibroblasts are then transplanted onto the host, either alone or after having been grown to confluence on cytodex 3 microcarrier beads. Example 14: Gene Therapy Using Endogenous B7-like Genes [1097] Another method of gene therapy according to the present invention involves operably associating the endogenous B7-like gene sequence with a promoter via homologous recombination as described, for example, in U.S. Patent NO: 5,641,670, issued June 24, 1997; International Publication NO: WO 96/29411, published September 26, 1996; International Publication NO: WO 94/12650, published August 4, 1994; KoUer et al., Proc. Natl. Acad. Sci. USA, 86:8932-8935 (1989); and Zijlsfra et al., Nature, 342:435-438 (1989). This method involves the activation of a gene which is present in the target cells, but which is not expressed in the cells, or is expressed at a lower level than desired. [1098] Polynucleotide constructs are made which contain a promoter and targeting sequences, which are homologous to the 5' non-coding sequence of the endogenous B7-like gene, flanking the promoter. The targeting sequence will be sufficiently near the 5' end of the B7-like gene so the promoter will be operably linked to the endogenous sequence upon homologous recombination. The promoter and the targeting sequences can be amplified using PCR. Preferably, the amplified promoter contains distinct restriction enzyme sites on the 5' and 3' ends. Preferably, the 3' end of the first targeting sequence contains the same restriction enzyme site as the 5' end of the amplified promoter and the 5' end of the second targeting sequence contains the same restriction site as the 3' end ofthe amplified promoter. [1099] The amplified promoter and the amplified targeting sequences are digested with the appropriate restriction enzymes and subsequently treated with calf intestinal phosphatase. The digested promoter and digested targeting sequences are added together in the presence of T4 DNA ligase. The resulting mixture is maintained under conditions appropriate for ligation of the two fragments. The construct is size fractionated on an agarose gel then purified by phenol extraction and ethanol precipitation. [1100] In this Example, the polynucleotide constructs are administered as naked polynucleotides via electroporation. However, the polynucleotide constructs may also be administered with transfection-facilitating agents, such as liposomes, viral sequences, viral particles, precipitating agents, etc. Such methods of delivery are known in the art. [1101] Once the cells are transfected, homologous recombination will take place which results in the promoter being operably linked to the endogenous B7-like gene sequence. This results in the expression of B7-like polypeptides in the cell. Expression may be detected by immunological staining, or any other method known in the art. [1102] Fibroblasts are obtained from a subject by skin biopsy. The resulting tissue is placed in DMEM + 10% fetal calf serum. Exponentially growing or early stationary phase fibroblasts are trypsinized and rinsed from the plastic surface with nutrient medium. An aliquot of the cell suspension is removed for counting, and the remaining cells are subjected to centrifugation. The supernatant is aspirated and the pellet is resuspended in 5 ml of electroporation buffer (20 mM HEPES pH 7.3, 137 mM NaCl, 5 mM KC1, 0.7 mM Na 2 HPO 4 , 6 mM dextrose). The cells are recentrifuged, the supernatant aspirated, and the cells resuspended in electroporation buffer containing 1 mg/ml acetylated bovine serum albumin. The final cell suspension contains approximately 3X10 6 cells/ml. Electroporation should be performed immediately following resuspension. [1103] Plasmid DNA is prepared according to standard techniques. For example, to construct a plasmid for targeting to the B7-like locus, plasmid pUC18 (MBI Fermentas, Amherst, NY) is digested with Hindm. The CMV promoter is amplified by PCR with an Xbal site on the 5' end and a BamHI site on the 3'end. Two B7-like non-coding gene sequences are amplified via PCR: one B7-like non-coding sequence (B7-like fragment 1) is amplified with a HindlJJ site at the 5' end and an Xba site at the 3'end; the other B7-like non- coding sequence (B7-like fragment 2) is amplified with a BamHI site at the 5'end and a Hindm site at the 3'end. The CMV promoter and B7-like fragments are digested with the appropriate enzymes (CMV promoter - Xbal and BamHI; B7-like fragment 1 - Xbal; B7-like fragment 2 - BamHI) and ligated together. The resulting ligation product is digested with Hindm, and ligated with the HindJII-digested pUC18 plasmid. [1104] Plasmid DNA is added to a sterile cuvette with a 0.4 cm electrode gap (Bio-Rad). The final DNA concentration is generally at least 120 μg/ml. 0.5 ml of the cell suspension (containing approximately 1.5.X10 6 cells) is then added to the cuvette, and the cell suspension and DNA solutions are gently mixed. Electroporation is performed with a Gene-Pulser apparatus (Bio-Rad). Capacitance and voltage are set at 960 μF and 250-300 V, respectively. As voltage increases, cell survival decreases, but the percentage of surviving cells that stably incorporate the introduced DNA into their genome increases dramatically. Given these parameters, a pulse time of approximately 14-20 mSec should be observed. [1105] Electroporated cells are maintained at room temperature for approximately 5 min, and the contents of the cuvette are then gently removed with a sterile transfer pipette. The cells are added directly to 10 ml of prewarmed nutrient media (DMEM with 15% calf serum) in a 10 cm dish and incubated at 37 degree C. The following day, the media is aspirated and replaced with 10 ml of fresh media and incubated for a further 16-24 hours. [1106] The engineered fibroblasts are then injected into the host, either alone or after having been grown to confluence on cytodex 3 microcarrier beads. The fibroblasts now produce the protein product. The fibroblasts can then be introduced into a patient as described above. Example 15: Method of Treatment Using Gene Therapy - In Vivo [1107] Another aspect of the present invention is using in vivo gene therapy methods to treat disorders, diseases and conditions. The gene therapy method relates to the introduction of naked nucleic acid (DNA, RNA, and antisense DNA or RNA) B7-like sequences into an animal to increase or decrease the expression of the B7-like polypeptide. The B7-like polynucleotide may be operatively linked to a promoter or any other genetic elements necessary for the expression of the B7-like polypeptide by the target tissue. Such gene therapy and delivery techniques and methods are known in the art, see, for example, WO90/11092, WO98/11779; U.S. Patent NO: 5693622, 5705151, 5580859; Tabata et al., Cardiovasc. Res. 35(3):470-479 (1997), Chao J et al., Pharmacol. Res., 35(6):517-522 (1997), Wolff, Neuromuscul Disord. 7(5):314-318 (1997), Schwartz et al., Gene Ther., 3(5):405-411 (1996), Tsurumi Y. et al., Circulation, 94(12):3281-3290 (1996) (incorporated herein by reference). [1108] The B7-like polynucleotide constructs may be delivered by any method that delivers mjectable materials to the cells of an animal, such as, injection into the interstitial space of tissues (heart, muscle, skin, lung, liver, intestine and the like). The B7-like polynucleotide constructs can be delivered in a pharmaceutically acceptable liquid or aqueous carrier. [1109] The term "naked" polynucleotide, DNA or RNA, refers to sequences that are free from any delivery vehicle that acts to assist, promote, or facilitate entry into the cell, including viral sequences, viral particles, liposome formulations, lipofectin or precipitating agents and the like. However, the B7-like polynucleotides may also be delivered in liposome formulations (such as those taught in Feigner et al., Ann. NY Acad. Sci., 772:126-139 (1995) and Abdallah et al., Biol. Cell , 85(1): 1-7 (1995)) which can be prepared by methods well known to those skilled in the art. [1110] The B7-like polynucleotide vector constructs used in the gene therapy method are preferably constructs that will not integrate into the host genome nor will they contain sequences that allow for replication. Any strong promoter known to those skilled in the art can be used for driving the expression of DNA. Unlike other gene therapies techniques, one major advantage of introducing naked nucleic acid sequences into target cells is the transitory nature of the polynucleotide synthesis in the cells. Studies have shown that non-replicating DNA sequences can be introduced into cells to provide production ofthe desired polypeptide for periods of up to six months. [1111] The polynucleotide constructs can be delivered to the interstitial space of tissues within the an animal, including of muscle, skin, brain, lung, liver, spleen, bone marrow, thymus, heart, lymph, blood, bone, cartilage, pancreas, kidney, gall bladder, stomach, intestine, testis, ovary, uterus, rectum, nervous system, eye, gland, and connective tissue. Interstitial space of the tissues comprises the intercellular fluid, mucopolysaccharide matrix among the reticular fibers of organ tissues, elastic fibers in the walls of vessels or chambers, collagen fibers of fibrous tissues, or that same matrix within connective tissue ensheathing muscle cells or in the lacunae of bone. It is similarly the space occupied by the plasma ofthe circulation and the lymph fluid ofthe lymphatic channels. Delivery to the interstitial space of muscle tissue is preferred for the reasons discussed below. They may be conveniently delivered by injection into the tissues comprising these cells. They are preferably delivered to and expressed in persistent, non-dividing cells which are differentiated, although delivery and expression may be achieved in non-differentiated or less completely differentiated cells, such as, for example, stem cells of blood or skin fibroblasts. In vivo muscle cells are particularly competent in their ability to take up and express polynucleotides. [1112] For the naked B7-like polynucleotide injection, an effective dosage amount of DNA or RNA will be in the range of from about 0.05 g/kg body weight to about 50 mg/kg body weight. Preferably the dosage will be from about 0.005 mg/kg to about 20 mg/kg and more preferably from about 0.05 mg/kg to about 5 mg/kg. Of course, as the artisan of ordinary skill will appreciate, this dosage will vary according to the tissue site of injection. The appropriate and effective dosage of nucleic acid sequence can readily be determined by those of ordinary skill in the art and may depend on the condition being treated and the route of administration. The preferred route of administration is by the parenteral route of injection into the interstitial space of tissues. However, other parenteral routes may also be used, such as, inhalation of an aerosol formulation particularly for delivery to lungs or bronchial tissues, throat or mucous membranes of the nose. In addition, naked B7-like polynucleotide constructs can be delivered to arteries during angioplasty by the catheter used in the procedure. [1113] The dose response effects of injected B7-like polynucleotide in muscle in vivo is determined as follows. Suitable B7-like template DNA for production of mRNA coding for B7-like polypeptide is prepared in accordance with a standard recombinant DNA methodology. The template DNA, which may be either circular or linear, is either used as naked DNA or complexed with liposomes. The quadriceps muscles of mice are then injected with various amounts ofthe template DNA. [1114] Five to six week old female and male Balb/C mice are anesthetized by intraperitoneal injection with 0.3 ml of 2.5% Avertin. A 1.5 cm incision is made on the anterior thigh, and the quadriceps muscle is directly visualized. The B7-like template DNA is injected in 0.1 ml of carrier in a 1 cc syringe through a 27 gauge needle over one minute, approximately 0.5 cm from the distal insertion site of the muscle into the knee and about 0.2 cm deep. A suture is placed over the injection site for future localization, and the skin is closed with stainless steel clips. [1115] After an appropriate incubation time (e.g., 7 days) muscle extracts are prepared by excising the entire quadriceps. Every fifth 15 um cross-section of the individual quadriceps muscles is histochemically stained for B7-like protein expression. A time course for B7-like protein expression may be done in a similar fashion except that quadriceps from different mice are harvested at different times. Persistence of B7-like DNA in muscle following injection may be determined by Southern blot analysis after preparing total cellular DNA and HIRT supematants from injected and control mice. The results ofthe above experimentation in mice can be use to extrapolate proper dosages and other treatment parameters in humans and other animals using B7-like naked DNA. Example 16: Production of an Antibody a) Hybridoma Technology [1116] The antibodies of the present invention can be prepared by a variety of methods. (See, Current Protocols, Chapter 2.) As one example of such methods, cells expressing B7- like polypeptide(s) are administered to an animal to induce the production of sera containing polyclonal antibodies. In a preferred method, a preparation of B7-like polypeptide(s) is prepared and purified to render it substantially free of natural contaminants. Such a preparation is then introduced into an animal in order to produce polyclonal antisera of greater specific activity. [1117] Monoclonal antibodies specific for B7-like polypeptide(s) are prepared using hybridoma technology. (Kohler et al., Nature 256:495 (1975); Kohler et al., Eur. J. Immunol. 6:511 (1976); Kohler et al., Eur. J. Immunol. 6:292 (1976); Hammerling et al., in: Monoclonal Antibodies and T-Cell Hybridomas, Elsevier, N.Y., pp. 563-681 (1981)). In general, an animal (preferably a mouse) is immunized with B7-like polypeptide(s) or, more preferably, with a secreted B7-like polypeptide-expressing cell. Such polypeptide-expressing cells are cultured in any suitable tissue culture medium, preferably in Earle's modified Eagle's medium supplemented with 10% fetal bovine serum (inactivated at about 56°C), and supplemented with about 10 g/1 of nonessential amino acids, about 1,000 U/ml of penicillin, and about 100 μg/ml of streptomycin. [1118] The splenocytes of such mice are extracted and fused with a suitable myeloma cell line. Any suitable myeloma cell line may be employed in accordance with the present invention; however, it is preferable to employ the parent myeloma cell line (SP2O), available from the ATCC. After fusion, the resulting hybridoma cells are selectively maintained in HAT medium, and then cloned by limiting dilution as described by Wands et al. (Gastroenterology 80:225-232 (1981)). The hybridoma cells obtained through such a selection are then assayed to identify clones which secrete antibodies capable of binding the B7-like polypeptide(s). [1119] Alternatively, additional antibodies capable of binding to B7-like polypeptide(s) can be produced in a two-step procedure using anti-idiotypic antibodies. Such a method makes use of the fact that antibodies are themselves antigens, and therefore, it is possible to obtain an antibody which binds to a second antibody, hi accordance with this method, protein specific antibodies are used to immunize an animal, preferably a mouse. The splenocytes of such an animal are then used to produce hybridoma cells, and the hybridoma cells are screened to identify clones which produce an antibody whose ability to bind to the B7-like protein-specific antibody can be blocked by B7-like polypeptide(s). Such antibodies comprise anti-idiotypic antibodies to the B7-like protein-specific antibody and are used to immunize an animal to induce formation of further B7-like protein-specific antibodies. [1120] For in vivo use of antibodies in humans, an antibody is "humanized". Such antibodies can be produced using genetic constructs derived from hybridoma cells producing the monoclonal antibodies described above. Methods for producing chimeric and humanized antibodies are known in the art and are discussed herein. (See, for review, Morrison, Science 229:1202 (1985); Oi et al., BioTechniques 4:214 (1986); Cabilly et al., U.S. Patent No. 4,816,567; Taniguchi et al., EP 171496; Morrison et al., EP 173494; Neuberger et al., WO 8601533; Robinson et al., WO 8702671; Boulianne et al., Nature 312:643 (1984); Neuberger et al., Nature 314:268 (1985)). b) Isolation Of Antibody Fragments Directed Against B7-like Polypeptide(s) From A Library Of scFvs [1121] Naturally occurring V-genes isolated from human PBLs are constructed into a library of antibody fragments which contain reactivities against B7-like polypeptide(s) to which the donor may or may not have been exposed (see e.g., U.S. Patent 5,885,793 incorporated herein by reference in its entirety). Rescue ofthe Library. [1122] A library of scFvs is constructed from the RNA of human PBLs as described in PCT publication WO 92/01047. To rescue phage displaying antibody fragments, approximately 109 E. coli harboring the phagemid are used to inoculate 50 ml of 2xTY containing 1% glucose and 100 μg/ml of ampicillin (2xTY-AMP-GLU) and grown to an O.D. of 0.8 with shaking. Five ml of this culture is used to innoculate 50 ml of 2xTY-AMP- GLU, 2 x 108 TU of delta gene 3 helper (Ml 3 delta gene HI, see PCT publication WO 92/01047) are added and the culture incubated at 37°C for 45 minutes without shaking and then at 37°C for 45 minutes with shaking. The culture is centrifuged at 4000 r.p.m. for 10 min. and the pellet resuspended in 2 liters of 2xTY containing 100 μg/ml ampicillin and 50 μg/ml kanamycin and grown overnight. Phage are prepared as described in PCT publication WO 92/01047. [1123] M13 delta gene is prepared as follows: M13 delta gene m helper phage does not encode gene HI protein, hence the phage(mid) displaying antibody fragments have a greater avidity of binding to antigen. Infectious Ml 3 delta gene HI particles are made by growing the helper phage in cells harboring a pUC19 derivative supplying the wild type gene m protein during phage morphogenesis. The culture is incubated for 1 hour at 37° C without shaking and then for a further hour at 37°C with shaking. Cells are spun down (IEC-Centra 8,400 r.p.m. for 10 min), resuspended in 300 ml 2xTY broth containing 100 μg ampicillin/ml and 25 μg kanamycin ml (2xTY-AMP-KAN) and grown overnight, shaking at 37°C. Phage particles are purified and concentrated from the culture medium by two PEG-precipitations (Sambrook et al., 1990), resuspended in 2 ml PBS and passed through a 0.45 μm filter (Minisart NML; Sartorius) to give a final concentration of approximately 1013 transducing units/ml (ampicillin-resistant clones). Panning ofthe Library. [1124] Immunotubes (Nunc) are coated overnight in PBS with 4 ml of either 100 μg/ml or 10 μg/ml of a polypeptide of the present invention. Tubes are blocked with 2% Marvel-PBS for 2 hours at 37°C and then washed 3 times in PBS. Approximately 1013 TU of phage is applied to the tube and incubated for 30 minutes at room temperature tumbling on an over and under turntable and then left to stand for another 1.5 hours. Tubes are washed 10 times with PBS 0.1% Tween-20 and 10 times with PBS. Phage are eluted by adding 1 ml of 100 mM triethylamine and rotating 15 minutes on an under and over turntable after which the solution is immediately neutralized with 0.5 ml of 1.0M Tris-HCl, pH 7.4. Phage are then used to infect 10 ml of mid-log E. coli TGI by incubating eluted phage with bacteria for 30 minutes at 37°C. The E. coli are then plated on TYE plates containing 1% glucose and 100 μg/ml ampicillin. The resulting bacterial library is then rescued with delta gene 3 helper phage as described above to prepare phage for a subsequent round of selection. This process is then repeated for a total of 4 rounds of affinity purification with tube-washing increased to 20 times with PBS, 0.1% Tween-20 and 20 times with PBS for rounds 3 and 4. Characterization of Binders. [1125] Eluted phage from the 3rd and 4th rounds of selection are used to infect E. coli HB 2151 and soluble scFv is produced (Marks, et al., 1991) from single colonies for assay. ELIS As are performed with microtitre plates coated with either 10 pg/ml of the polypeptide of the present invention in 50 mM bicarbonate pH 9.6. Clones positive in ELISA are further characterized by PCR finge rinting (see, e.g., PCT publication WO 92/01047) and then by sequencing. These ELISA positive clones may also be further characterized by techniques known in the art, such as, for example, epitope mapping, binding affinity, receptor signal transduction, ability to block or competitively inhibit antibody/antigen binding, and competitive agonistic or antagonistic activity. Example 17: B7-like Knock-Out Animals [1126] Endogenous B7-like gene expression can also be reduced by inactivating or "knocking out" the B7-like gene and/or its promoter using targeted homologous recombination. (E.g., see Smithies et al., Nature 317:230-234 (1985); Thomas & Capecchi, Cell 51:503-512 (1987); Thompson et al, Cell 5:313-321 (1989); each of which is incoφorated by reference herein in its entirety). For example, a mutant, non-functional polynucleotide of the invention (or a completely unrelated DNA sequence) flanked by DNA homologous to the endogenous polynucleotide sequence (either the coding regions or regulatory regions of the gene) can be used, with or without a selectable marker and/or a negative selectable marker, to transfect cells that express polypeptides of the invention in vivo, hi another embodiment, techniques known in the art are used to generate knockouts in cells that contain, but do not express the gene of interest. Insertion ofthe DNA construct, via targeted homologous recombination, results in inactivation of the targeted gene. Such approaches are particularly suited in research and agricultural fields where modifications to embryonic stem cells can be used to generate animal offspring with an inactive targeted gene (e.g., see Thomas & Capecchi 1987 and Thompson 1989, supra). However this approach can be routinely adapted for use in humans provided the recombinant DNA constructs are directly administered or targeted to the required site in vivo using appropriate viral vectors that will be apparent to those of skill in the art. [1127] In further embodiments of the invention, cells that are genetically engineered to express the polypeptides of the invention, or alternatively, that are genetically engineered not to express the polypeptides of the invention (e.g., knockouts) are administered to a patient in vivo. Such cells may be obtained from the patient (i.e., animal, including human) or an MHC compatible donor and can include, but are not limited to fibroblasts, bone marrow cells, blood cells (e.g., lymphocytes), adipocytes, muscle cells, endothelial cells etc. The cells are genetically engineered in vitro using recombinant DNA techniques to introduce the coding sequence of polypeptides ofthe invention into the cells, or alternatively, to disrupt the coding sequence and/or endogenous regulatory sequence associated with the polypeptides of the invention, e.g., by transduction (using viral vectors, and preferably vectors that integrate the transgene into the cell genome) or transfection procedures, including, but not limited to, the use of plasmids, cosmids, YACs, naked DNA, electroporation, liposomes, etc. The coding sequence of the polypeptides of the invention can be placed under the control of a strong constitutive or inducible promoter or promoter/enhancer to achieve expression, and preferably secretion, of the B7-like polypeptides. The engineered cells which express and preferably secrete the polypeptides of the invention can be introduced into the patient systemically, e.g., in the circulation, or intraperitoneally. [1128] Alternatively, the cells can be incorporated into a matrix and implanted in the body, e.g., genetically engineered fibroblasts can be implanted as part of a skin graft; genetically engineered endothelial cells can be implanted as part of a lymphatic or vascular graft. (See, for example, Anderson et al. U.S. Patent No. 5,399,349; and Mulligan & Wilson, U.S. Patent No. 5,460,959 each of which is incoφorated by reference herein in its entirety). [1129] When the cells to be administered are non-autologous or non-MHC compatible cells, they can be administered using well known techniques which prevent the development of a host immune response against the introduced cells. For example, the cells may be introduced in an encapsulated form which, while allowing for an exchange of components with the immediate extracellular environment, does not allow the introduced cells to be recognized by the host immune system. [1130] Knock-out animals ofthe invention have uses which include, but are not limited to, animal model systems useful in elaborating the biological function of B7-like polypeptides, studying conditions and/or disorders associated with aberrant B7-like expression, and in screening for compounds effective in ameliorating such conditions and/or disorders. Example 18: B7-Iike Counter-Receptor Expression [1131] To detect the expression of counter-receptor(s) of B7-like molecules, expression of activated markers on T cells are analyzed with FITC-conjugated mAb specific to CD25, CD40L, 4- IBB and OX40. Single or double stained cells are analyzed using the Becton- Dickinson FACScan (Mountain View, CA). Example 19: T Cell Proliferation and Cytokine Assays [1132] Methods for measuring T cell growth and cytokine production were described previously (Dong, H., et al, Nat Med., 5:1365-9 (1999)). Briefly, flat-bottomed 96-well plates are first coated at 4°C overnight with 50 μl/well of anti-CD3 mAb at 40 or 200 ng/ml and subsequently coated with B7-H3Ig or control Ig at 37°C for 4 hrs. T cells at indicated concentrations are cultured for 72 hrs and 3 H-TdR at 1 μCi/well is added for the last 18 hrs., and the 3 H-TdR incoφoration is counted on a Microbeta Trilix liquid scintillation counter (Wallac, Turku, Finland). Supematants are collected 48 hrs after T cell culturing, and are assayed for IL-2, IL-10, and IFN-γ using appropriate sandwich ELISA as described by Dong et al. utilizing mAb purchased from Pharmingen. Example 20: T Cell Proliferation, Costimulation, and Prestimulation Proliferation Assays Proliferation assay for Resting PBLs. [1133] A CD3-induced proliferation assay is performed on PBMCs and is measured by the uptake of H-thymidine. The assay is performed as follows. Ninety-six well plates are coated with 100 micro liters per well of mAb to CD3 (HIT3a, Pharmingen) or isotype- matched control mAb (B33.1) overnight at 4°C (1 microgram/ml in .05M bicarbonate buffer, pH 9.5), then washed three times with PBS. PBMC are isolated by Ficoll/Hypaque (F/H) gradient centrifugation from human peripheral blood and added to quadruplicate wells (5 x 10 4 /well) of mAb coated plates in RPMI containing 10% FCS and Penicillin and Streptomycin (P/S) in the presence of varying concentrations of B7-like protein (total volume 200 microliters). Relevant protein buffer and medium alone are controls. After 48 hr. culture at 37 C, plates are spun for 2 min. at 1000 φm and 100 microliters of supernatant is removed and stored -20°C for measurement of IL-2 (or other cytokines) if effect on proliferation is observed. Wells are supplemented with 100 microliters of medium containing 0.5 microcuries of 3 H-thymidine and cultured at 37°C for 18-24 hr. Wells are harvested and incoφoration of 3 H-thymidine used as a measure of proliferation. Anti-CD3 alone is the positive control for proliferation. IL-2 (100 U/ml) is also used as a control which enhances proliferation. Control antibody which does not induce proliferation of T cells is used as the negative controls for the effects of B7-like proteins. [1134] Alternatively, a proliferation assay on resting PBL (peripheral blood lymphocytes) is measured by the up-take of 3 H-thymidine. The assay is performed as follows. PBMC are isolated by F/H gradient centrifugation from human peripheral blood, and are cultured overnight in 10% FCS/RPMI. This overnight incubation period allows the adherent cells to attach to the plastic, which results in a lower background in the assay as there are fewer cells that can act as antigen presenting cells or that might be producing growth factors. The following day the non-adherent cells are collected, washed and used in the proliferation assay. The assay is performed in a 96 well plate using 2 xlO 4 cells/well in a final volume of 200 microliters. A supernatant expressing the B7-like polypeptide of interest is tested at a 30% final dilution, therefore 60 microliters are added to 140 microliters of medium containing the cells. Control supematants are used at the same final dilution and express the following proteins: vector only (negative control), IL-2, IFNgamma, TNF-alpha, B -10 and TR2. hi addition to the control supematants recombinant human IL-2 at a final concentration of 100 ng/ml is also used. After 24 hours of culture, each well is pulsed with 1 microcurie of H-thymidine. Cells are then harvested 20 hours following pulsing and incoφoration of H- thymidine is used as a measure of proliferation. Results are expressed as an average of triplicate samples plus or minus standard error. Costimulation assay. [1135] A costimulation assay on resting PBL (peripheral blood lymphocytes) is performed in the presence of immobilized antibodies to CD3 and CD28. The use of antibodies specific for the invariant regions of CD3 mimic the induction of T cell activation that would occur through stimulation of the T cell receptor by an antigen. Cross-linking of the TCR (first signal) in the absence of a costimulatory signal (second signal) causes very low induction of proliferation and will eventually result in a state of "anergy", which is characterized by the absence of growth and inability to produce cytokines. The addition of a costimulatory signal such as an antibody to CD28, which mimics the action of the costimulatory molecule B7-1 expressed on activated APCs, results in enhancement of T cell responses including cell survival and production of IL-2. Therefore this type of assay allows to detect both positive and negative effects caused by addition of supematants expressing the proteins of interest on T cell proliferation. [1136] The assay is performed as follows. Ninety-six well plates are coated with 100 ng/ml anti-CD3 and 5 micrograms per milliliter anti-CD28 in a final volume of 100 microliters and incubated overnight at 4 C. Plates are washed twice with PBS before use. PBMC are isolated by F/H gradient centrifugation from human peripheral blood, and are cultured overnight in 10% FCS/RPMI. This overnight incubation period allows the adherent cells to attach to the plastic, which results in a lower background in the assay as there are fewer cells that can act as antigen presenting cells or that might be producing growth factors. The following day the non-adherent cells are collected, washed and used in the proliferation assay. The assay is performed in a 96 well plate using 2 xlO 4 cells/well in a final volume of 200 microliters. A supernatant expressing the B7-like polypeptide of interest is tested at a 30% final dilution, therefore 60 microliters are added to 140 microliters of medium containing the cells. Control supematants are used at the same final dilution and express the following proteins: vector only (negative control), IL-2, IFN-gamma, TNF-alpha, IL-10 and TR2. In addition to the control supematants recombinant human IL-2 at a final concentration of 10 ng/ml is also used. After 24 hours of culture, each well is pulsed with 1 microcurie of H-thymidine. Cells are then harvested 20 hours following pulsing and incoφoration of H- thymidine is used as a measure of proliferation. Results are expressed as an average of triplicate samples plus or minus standard error. Proliferation assay for preactivated-resting T cells. [1137] A proliferation assay on preactivated-resting T cells is performed on cells that are previously activated with the lectin phytohemagglutinin (PHA). Lectins are polymeric plant proteins that can bind to residues on T cell surface glycoproteins including the TCR and act as polyclonal activators. PBLs treated with PHA and then cultured in the presence of low doses of IL-2 resemble effector T cells. These cells are generally more sensitive to further activation induced by growth factors such as IL-2. This is due to the expression of high affinity IL-2 receptors that allows this population to respond to amounts of IL-2 that are 100 fold lower than what would have an effect on a naϊve T cell. Therefore the use of this type of cells might enable to detect the effect of very low doses of an unknown growth factor, that would not be sufficient to induce proliferation on resting (naϊve) T cells. [1138] The assay is performed as follows. PBMC are isolated by F/H gradient centrifugation from human peripheral blood, and are cultured in the presence of 2 micrograms per milliliter PHA for three days. The cells are then washed and cultured in the presence of 5 ng/ml of human recombinant IL-2 for 3 days. The cells are washed and rested in starvation medium (1% FCS/RPMI) for 16 hours prior to the beginning ofthe proliferation assay. An aliquot of the cells is analyzed by FACS to determine the percentage of T cells (CD3 positive cells), usually it ranges between 93-97% depending on the donor. The assay is performed in a 96 well plate using 2 xlO 4 cells/well in a final volume of 200 microliters. A supernatant expressing the B7-like polypeptide of interest is tested at a 30% final dilution, therefore 60 microliters are added to 140 microliters of medium containing the cells. Control supematants are used at the same final dilution and express the following proteins: vector only (negative control), IL-2, IFN-gamma, TNF-alpha, IL-10 and TR2. In addition to the control supematants recombinant human IL-2 at a final concentration of 10 ng/ml is also used. After 24 hours of culture, each well is pulsed with 1 microcurie of H-thymidiiie. Cells are then harvested 20 hours following pulsing and incoφoration of 3 H-thymidine is used as a measure of proliferation. Results are expressed as an average of triplicate samples plus or minus standard error. [1139] Although the studies described in this example test the activity in B7-like protein, one skilled in the art could easily modify the exemplified studies to test the activity of B7-like polynucleotides (e.g., gene therapy), agonists, and/or antagonists of B7-like. [1140] It will be clear that the invention may be practiced otherwise than as particularly described in the foregoing description and examples. Numerous modifications and variations of the present invention are possible in light of the above teachings and, therefore, are within the scope ofthe appended claims. [1141] The entire disclosure of each document cited (including patents, patent applications, journal articles, abstracts, laboratory manuals, books, or other disclosures) in the Background of the Invention, Detailed Description, and Examples is hereby incoφorated herein by reference. Further, the hard copy ofthe sequence listing submitted herewith and the corresponding computer readable form are both incoφorated herein by reference in their entireties. [1142] Certain B7-like polynucleotides and polypeptides of the present invention, including antibodies, were disclosed in U.S. provisional application numbers 60/215,135 and 60/225,266, the specifications and sequence listings of which are herein incoφorated by reference in their entirety.

Claims: CLAIMS 1. An isolated nucleic acid molecule comprising a polynucleotide selected from the group consisting of: (a) the polynucleotide shown as SEQ ID NO:X or the polynucleotide encoded by a cDNA included in ATCC Deposit No:Z; (b) a polynucleotide encoding a biologically active polypeptide fragment of SEQ JD NO:Y or a biologically active polypeptide fragment encoded by the cDNA sequence included in ATCC Deposit No:Z; (c) a polynucleotide encoding a polypeptide epitope of SEQ ID NO:Y or a polypeptide epitope encoded by the cDNA sequence included in ATCC Deposit No:Z; (d) a polynucleotide capable of hybridizing under stringent conditions to any one of the polynucleotides specified in (a)-(c), wherein said polynucleotide does not hybridize under stringent conditions to a nucleic acid molecule having a nucleotide sequence of only A residues or of only T residues. 2. The isolated nucleic acid molecule of claim 1, wherein the polynucleotide comprises a nucleotide sequence encoding a soluble polypeptide. 3. The isolated nucleic acid molecule of claim 1, wherein the polynucleotide comprises a nucleotide sequence encoding the sequence identified as SEQ ID NO:Y or the polypeptide encoded by the cDNA sequence included in ATCC Deposit No:Z. 4. The isolated nucleic acid molecule of claim 1, wherein the polynucleotide comprises the entire nucleotide sequence of SEQ ID NO:X or a cDNA included in ATCC Deposit No:Z. 5. The isolated nucleic acid molecule of claim 2, wherein the polynucleotide is DNA. 6. The isolated nucleic acid molecule of claim 3, wherein the polynucleotide is RNA. 7. A vector comprising the isolated nucleic acid molecule of claim 1. 8. A host cell comprising the vector of claim 7. 9. A recombinant host cell comprising the nucleic acid molecule of claim 1 operably limited to a heterologous regulating element wliich controls gene expression. 10. A method of producing a polypeptide comprising expressing the encoded polypeptide from the host cell of claim 9 and recovering said polypeptide. 11. An isolated polypeptide comprising an amino acid sequence at least 95% identical to a sequence selected from the group consisting of: (a) the polypeptide shown as SEQ ID NO:Y or the polypeptide encoded by the cDNA; (b) a polypeptide fragment of SEQ ID NO:Y or the polypeptide encoded by the cDNA; (c) a polypeptide epitope of SEQ ID NO:Y or the polypeptide encoded by the cDNA; and (d) a variant of SEQ ID NO:Y. 12. The isolated polypeptide of claim 11, comprising a polypeptide having SEQ ID NO:Y. 13. An isolated antibody that binds specifically to the isolated polypeptide of claim 11. 14. A recombinant host cell that expresses the isolated polypeptide of claim 11. 15. A method of making an isolated polypeptide comprising: (a) culturing the recombinant host cell of claim 14 under conditions such that said polypeptide is expressed; and (b) recovering said polypeptide. 16. The polypeptide produced by claim 15. 17. A method for preventing, treating, or ameliorating a medical condition, comprising administering to a mammalian subject a therapeutically effective amount of the polynucleotide of claim 1. 18. A method of diagnosing a pathological condition or a susceptibility to a pathological condition in a subject comprising: (a) determining the presence or absence of a mutation in the polynucleotide of claim 1; and (b) diagnosing a pathological condition or a susceptibility to a pathological condition based on the presence or absence of said mutation. 19. A method of diagnosing a pathological condition or a susceptibility to a pathological condition in a subject comprising: (a) determining the presence or amount of expression of the polypeptide of claim 11 in a biological sample; and (b) diagnosing a pathological condition or a susceptibility to a pathological condition based on the presence or amount of expression ofthe polypeptide. 20. A method for identifying a binding partner to the polypeptide of claim 11 comprising: (a) contacting the polypeptide of claim 11 with a binding partner; and (b) determining whether the binding partner effects an activity ofthe polypeptide. 21. A method of screening for molecules which modify activities of the polypeptide of claim 11 comprising: (a) contacting said polypeptide with a compound suspected of having agonist or antagonist activity; and (b) assaying for activity of said polypeptide. 22. A method for preventing, treating, or ameliorating a medical condition, comprising administering to a mammalian subject a therapeutically effective amount the polypeptide of claim 11.

Inventors: FISCELLA MICHELE, NI JIAN, RUBEN STEVEN M, FISCELLA, MICHELE, NI, JIAN, RUBEN, STEVEN, M.
Applicants: FISCELLA MICHELE, HUMAN GENOME SCIENCES INC, NI JIAN, RUBEN STEVEN M, FISCELLA, MICHELE, HUMAN GENOME SCIENCES, INC., NI, JIAN, RUBEN, STEVEN, M.
Application year: 2001
Main classification: C07H21
IPC codes: A61K31, A61K38, A61K39, A61K48, A61P1, A61P3, A61P5, A61P7, A61P9, A61P11, A61P13, A61P15, A61P17, A61P19, A61P21, A61P25, A61P27, A61P29, A61P31, A61P33, A61P35, A61P37, A61P43, C07H21, C07K14, C07K16, C12N1, C12N5, C12N15, C12P21, C12Q1, G01N33