Patent ID: 7928072

Claim:
A fusion protein of the formula X—Y—Z, wherein X comprises a polypeptide that is an extracellular receptor selected from the group consisting of a tyrosine kinase receptor or a portion thereof and a serine threonine kinase receptor or a portion thereof; Y is a polypeptide selected from the group consisting of gly 9 (SEQ ID NO: 27), glu 9 (SEQ ID NO: 28), ser 9 (SEQ ID NO: 29), gly 5 cyspro 2 cys (SEQ ID NO: 30), (gly 4 ser) 3 (SEQ ID NO: 31), SerCysValProLeuMetArgCysGlyGlyCysCysAsn (SEQ ID NO: 32), Pro Ser Cys Val Pro Leu Met Arg Cys Gly Gly Cys Cys Asn (SEQ ID NO: 13), Gly-Asp-Leu-Ile-Tyr-Arg-Asn-Gln-Lys (SEQ ID NO: 26), and Gly 9 ProSerCysValProLeuMetArgCysGlyGlyCysCysAsn (SEQ ID NO: 34), and Z is a CH3 region of an IgG heavy chain molecule or an Fc portion of an antibody molecule, wherein said protein binds to its ligand when multimerized.