# Patent

## Title
Mutant human and simian immunodeficiency virus ENV proteins with reduced immunosuppressive properties

## Abstract

A pharmaceutical composition includes, as active substance a mutated lentiviral ENV protein, substantially devoid of immunosuppressive properties or a variant of the mutated lentiviral ENV protein or a fragment of the above proteins, in association with a pharmaceutically acceptable carrier.

## Background
FIELD OF THE INVENTION
The present invention relates to mutated lentiviral ENV proteins and their use as drugs.
BACKGROUND OF THE INVENTION
Lentivirus is a genus of slow viruses of the Retroviridae family, characterized by a long incubation period. Lentiviruses can deliver a significant amount of genetic information into the DNA of the host cell and have the unique ability among retroviruses of being able to replicate in non-dividing cells, so they are one of the most efficient methods of a gene delivery vector. HIV, SIV, and FIV are all examples of lentiviruses.
Human immunodeficiency virus (HIV) is according to WHO one of the most serious health crisis the world faces today. AIDS has killed more than 25 million people since 1981. In the most severely affected countries, the average life expectancy is now declining to 49 years of age—13 years less than in the absence of AIDS. According to UNAIDS an estimated number of 39.5 million people were living with HIV virus in 2006 and 4.3 million were infected in 2006. In many regions new infections are heavily concentrated in the younger generations (15-24 years of age). Access to treatment and care has greatly increased in recent years. Determining real time trends to HIV incidence and in particular the impact of prevention programmes ideally requires long studies of a large number of people. Given the practical difficulties of conducting such studies focus has been placed on young women and their infants. Children living with HIV typically acquire infection through a mother-to-child-transmission (MTCT), which occur during pregnancy, delivery or during breastfeeding. Renewed efforts are urgently required to increase access to comprehensive and integrated programs to prevent HIV infection in infants and young children, which will indicate a route to HIV-free generations.
There are two known types of HIV; HIV-1 and HIV-2 that infect humans. They belong to a group of retroviruses called Lentiviruses and a virus similar to HIV has been found in African monkeys. Retroviruses transfer their genes from a producer cell to a target cell as a genomic RNA transcript, which is reverse-transcribed after infection and integrated into the DNA genome of the target cell.
The first person with a documented HIV-infection died in 1959. In the early 1980s doctors in the US become aware, that more and more patients suffered from abnormal infections and showed signs of immune failure. The syndrome was named Acquired Immune Deficiency Syndrome (AIDS) and it was soon after discovered that HIV was the causative agent for the observed destruction of the immune system. Initially patients were offered a treatment based solely on pain relief and almost all inevitably died. In mid 1990s there were two important breakthroughs in treatment. Firstly, a new group of antiretroviral agents were discovered and secondly it became possible to measure the amount of HIV virus in blood. These two advances made it possible to treat patients with a combination of different agents and doctors were able to check, whether the treatment actually worked. The result was that the immune system of infected patients gradually became normal and patients lived longer. Today infected people in Western countries are having the same level of quality of life as those not infected and they are able to have children, although the economical and psychological consequences of having HIV are huge. The situation is, however, even more severe in developing countries, where more than 95% of those people infected with HIV/AIDS are living. Worldwide more than 25 million people have died from AIDS in the last 25 years.
Approximately 95% of the people who get infected today live in the developing countries, where expensive antiviral drugs are not available. Therefore, there is an urgent need for an effective vaccine—the only effective solution to the uncontrolled HIV pandemic. During the last few years research has brought up new knowledge on the fundamental biology of HIV-virus which is leading to new antiviral drugs and strategies for vaccine design. In spite of these substantial advances, an effective vaccine does not yet exist. Only attenuated (that is live but weakened) HIV-strains has been able to provide immunity in primate studies even though they will never reach a required safety profile suitable for mass vaccination.
The replication process for HIV-1 has an error rate of about one per 10,000 base pairs. Since the entire viral genome is just under 10,000 base pairs, it is estimated that on average one error is introduced into the HIV-1 genome at each viral replication cycle.
This high mutation rate contributes to extensive variability of the viruses inside any one person and an even wider variability across populations.
This variability has resulted in three HIV-1 variants being described, and the subspecies of virus called “clades.” The distinctions are based on the structure of the envelope proteins, which are especially variable. The M (for major) variant is by far the most prevalent world wide. Within the M variant are clades A, B. C, D, E, F. G H. I, J and K, with clades A through E representing the vast majority of infections globally. Clades A, C and D are dominant in Africa, while clade B is the most prevalent in Europe, North and South America and Southeast Asia. Clades E and C are dominant in Asia. These clades differ by as much as 35%. Another variant is clade O, which is observed in Cameroun isolates of HIV-1. The greatest variation in structure is seen in the envelope proteins gp120 and gp41. There are two important results from the very high mutation rate of HIV-1 that have profound consequences for the epidemic. First, the high mutation rate is one of the mechanisms that allow the virus to escape from control by drug therapies. These new viruses represent resistant strains. The high mutation rate also allows the virus to escape the patient's immune system by altering the structures that are recognized by immune components. An added consequence of this extensive variability is that the virus can also escape from control by vaccines, and therefore makes it difficult to find vaccines based on envelope proteins which are effective.
Moreover, the virus produces proteins having immunosuppressive properties, allowing to escape the patient's immune system survey. Thus, cell expressing such proteins become “invisible” to the immune system.
Consequently for a vaccine, there is a need to provide proteins as antigens having lost, or substantially lost, their immunosuppressive functions, in order to generate an efficient response. This will enable the individuals once infected by the virus to allow the immune system to destroy the infected cells and prevent/cure the infection.
Prior art has already intended to provide such proteins.
For instance, the international application WO 2005/095,442 (Inventors: Renard, Mangeney & Heidmann) discloses mutations in the immunosuppressive domains of endogenous retroviruses (ERV) or onco retroviruses, such as HTLV or FeLV, ENV proteins. This document demonstrates that mutations at a specific position abolish the immunosuppressive properties of ENV proteins of ERV or onco retroviruses. However, the international application WO 2005/095, 442 never mentions or suggests that the mutations made in the immunosuppressive domain of ERV- or onco retroviruses ENV proteins can be transposable to lentiviral ENV proteins.
The international application WO 2010/022,740 discloses an extremely wide consensus sequence of a region of HIV ENV protein, described as follows:

    
    
        X(1-22)-C(23)-X(24-28)-C(29)-(X30-50)

wherein the amino acid residues of the consensus sequence are selected from the groups of residues consisting of:

X(1): L, S, R, P, F, A, V, M, and I; and

X(2): Q, R, K, H, L, M, and P; and

X(3): A, T, V, H, S, R, Q, G, M, and E; and

X(4): R, K, G, E, T, S, C, M, and H; and

X(5): V, I, L, D, A, S, F, M, and G; and

X(6): L, Q, V, M, P, W, T, and I; and

X(7): A, S, T, V, L, G, F, D, M, and E; and

X(8): V, L, I, M, A, W, K, G, and E; and

X(9): E, K, G, D, A, V, M, and F; and

X(10): X; and

X(11): Y, L, F, H, C, I, T, M, and N; and

X(12): L, I, V, M, Q, P, T, Y, and A; and

X(13): K, R, Q, G, S, E, H, W, T, V, M, N, Z, Y, A, P, and C; and

X(14): D, N, G, E, Y, V, S, H, A, M, and I; and

X(15): Q, R, H, K, P, L, M, and N; and

X(16): Q, K, R, T, H, E, S, P, M, and L; and

X(17): L, F, I, R, V, P, S, M, and H, and

X(18): L, M, P, I, H, and S; and

X(19): X; and

X(20): I, L, M, V, S, F, T, D, A, R, P, and J; and

X(21): W, R, G, F, L, M, and T; and

X(22): G, D, A, R, M, and C; and

X(24): X; and

X(25): G, R, E, N, A, M, and D; and

X(26): K, R, N, E, Q, T, S, I, M, and G; and

X(27): L, H, I, T, V, F, R, Q, S, P, A, J, M, and Y; and

X(28): I, V, T, L, R, F and M; and

X(30): T, P, Y, A, N, S, I, V, R, L, M, and H; and

X(31): T, S, P, N, M and I; and

X(32): A, N, T, S, D, R, FQ, P, I, E, V, M, L, K, H, C, and B; and

X(33): V, A, L, M, G, R, and C; and

X(34): X; and

X(35): W, R, G, L, M, and P; and

X(36): N, S, D, B, K, E, R, Q, M, and G; and

X(37): S, T, A, N, D, V, I, E, Y, K, L, R, G, P, M, F, W, H, Q, B, and C; and

X(38): S, T, N, I, G, R, L, C, A, W, M and E; and

X(39): W, G, A, R, E, C, Y, V, S, M, and H; and

X(40): X; and

X(41): N, G, K, S, D, E, T, R, H, P, A, B, V, Q, Y, M, and I; and

X(42): K, R, N, D, S, T, G, E, I, V, Y, Q, P, H, A, W, M, and C, and

X(43): S, T, N, K, I, R, D, E, P, L, A, W, G, M, H, Y, F, V, and C,

X(44): L, Y, Q, F, E, H, S, V, K, M, T, I, W, N, D, R, P, A, and G; and

X(45): D, E, N, S, T, K, G, L, A, Q, H, I, Y, B, R, V, P, M, F, W, Z, and C; and

X(46): E, D, Q, Y, K, N, T, S, A, W, H, M, R, I, G, L, V, Z, F, B, and P; and

X(47): I, D, E, M, G, T, Q, S, W, L, N, Y, K, V, R, F, A, P, and H, and

X(48): W, I, T, N, D, E, L, G, S, Y, R, V, K, H, A, Q, M, and F; and

X((49): D, N, E, G, W, Q, K, H, L, B, S, I, Y, T, A, R, M, Z, and V; and

X(50): N, D, T, K, S, H, L, G, E, W, I, Q, M, R, B, Y, P, and A;

    
    


This consensus sequence contains 50 amino acids, in which the specific amino acids in position 10, 19, 24, 34 and 40 are defined as affecting the immunogenic properties of a HIV-1 envelope polypeptide, and the 45 remaining positions are randomly defined including the most common amino acids of wild-type HIV ENV proteins.
In fact, the teaching of WO 2010/022,740 is a transposition from endogenous retroviruses (ERV) or onco retroviruses to lentivirus on the basis of the teaching of WO 2005/095,442 (Inventors: Renard, Mangeney & Heidmann), but said transposition is inappropriate in the case of lentivirus, as shown by the Inventor of the present invention.
Briefly speaking, Dr Heidmann is an Inventor in WO 2005/095,442 and in the present invention. As a matter of fact, the effects of the mutations described in WO 2005/095,442 were also tested in lentivirus by the Inventor of the present invention, but no effect was observed when the mutations identified in endogenous retroviruses or onco retroviruses were transposed into ENV protein of lentivirus.
Moreover, since any amino acid can be assigned to the positions 10, 19, 24, 34 or 40 in the consensus sequence, WO 2010/022,740 teaches that such mutations can be effective using any amino acid residue. This teaching is in contradiction with the present invention, showing that the immunosuppressive properties of HIV-1 ENV protein are only affected by specific mutations that are defined not only by their position, but also by the nature of the substituted amino acid residues.
Furthermore, WO 2010/022,740 discloses experimental results for only one specific mutation within the immunosuppressive domain of HIV ENV protein, as defined by the 50 amino acids consensus sequence. The mutation, a substitution by R as the only one exemplified in the international application WO 2010/022,740, occurs at the amino acid in position 19, which again is equivalent to the position disclosed in the international application WO 2005/095,442 if one simply aligns ENV sequences (see FIG. 3 in WO 2010/022,740, which is a copy of FIG. 3 in Benit et al. 2001, Journal of Virology, Vol. 75, No. 23, p. 11709-11719) (Of note not only the position of the amino acid, but also the nature of the substitution (by arginine) is similar to the one described in WO 2005/095,442).
More specifically, when aligning the ENV sequences respectively of an endogenous retrovirus or onco retrovirus and a lentivirus, according to FIG. 3 of Benit et al.:

























it appears that the position 19 in lentivirus corresponds to the position in WO 2005/095,442 where a specific substitution into arginine, E→R for endogenous or onco retrovirus, results in loss of immunosuppressive activity.

The international application WO 2010/022,740 discloses that said mutated HIV ENV protein inhibits proliferation of PBMC ex vivo, but such ex vivo result has no in vivo predictive value.
However, WO 2010/022,740 never discloses or suggests that mutants are efficient in vivo, i.e. that cell expressing mutants are detected by the immune system.
Moreover, as disclosed hereafter, such mutations are not efficient in vivo. Indeed, results disclosed hereafter in the example section relative to the present invention demonstrate that said substitution G19R does not inhibit in vivo the immunosuppressive properties of the ENV protein.
SUMMARY OF THE INVENTION
As a consequence, WO 2010/022,740 raises the same technical problem as the present invention, but does not offer an appropriate technical solution. This prior art reveals the difficulties to overcome the identification of the effective mutations affecting the immunosuppressive properties of the lentiviral ENV proteins.
Thus, the provision of in vivo effective non immunosuppressive lentiviral ENV proteins remains.
One aim of the invention is to provide new mutated ENV proteins devoid of immunosuppressive properties.
Another aim of the invention is to provide a new pharmaceutical composition efficient for treating lentiviral infection.
Another aim of the invention is to provide an efficient vaccine.

    
    
        The invention relates to a pharmaceutical composition comprising as active substance:
        
            a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
            said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
            said mutated human or simian lentiviral ENV protein having at least 70% identity, preferably at least 80% identity, to one sequence chosen from the group consisting of SEQ ID NO: 216, SEQ ID NO: 420 and SEQ ID NO: 421,
            said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
        
        
    
    











(SEQ ID NO: 416)



A-[IN]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        
        
            wherein,
            X represents any amino acid,
            
                and either
            
            
            Xa is A, F, G, L, R or deleted, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or
            Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G, R or deleted,
            or
            Xa is A, F, G, L, R or deleted, and Xb is A, F, G, R or deleted,
            or
            b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
            said fragment comprising at least 40 amino acids,
            said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
        
        
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        
        
            wherein,
            X represents any amino acid,
            
                and either
            
            
            Xa is A, F, G, L, R or deleted, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or
            Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G, R or deleted,
            or
            Xa is A, F, G, L, R or deleted, and Xb is A, F, G, R or deleted,
            in association with a pharmaceutically acceptable carrier,
            said substantial absence of immunosuppressive activity of the above mentioned mutated human or simian lentiviral ENV protein or of the above defined fragment being liable to be assessed by the fact that in an in vivo assay involving engrafted tumor cells rejection,
            said tumor cells being transduced either so as to express said mutated ENV protein or said fragment (“mutated ENV tumor cells”),
            or said tumor cells being transduced so as to express said wild type ENV protein or a fragment thereof (“wild type ENV tumor cells”),
            or said tumor cells being not transduced (“normal tumor cells”),
            the following ratio:
            immunosuppression index of said mutated ENV protein or of said fragment (imutated env)/immunosuppression index of wild type ENV protein (iwild type env) is less than 0.5,
            imutated env being defined by: (maximum area reached by mutated ENV tumor cells−maximum area reached by normal tumor cells)/(maximum area reached by normal tumor cells), and
            iwild type env being defined by: (maximum area reached by wild type ENV tumor cells−maximum area reached by normal tumor cells)/(maximum area reached by normal tumor cells).
        
        
    
    


The present application is based on the unexpected observation made by the Inventors that some specific amino acids of the immunosuppressive domain of a lentiviral ENV protein can be mutated conferring to said lentiviral ENV protein essentially no immunosuppressive properties, or no immunosuppressive properties, while retaining its antigenicity, the three-dimensional structure of the immunosuppressive domain, and its expression at the plasma membrane. Moreover, the mutated lentiviral ENV protein according to the invention does not alter the infectivity of a virus expressing it.
In the invention, the “mutated simian or human lentiviral ENV proteins” means that the ENV proteins derive from the expression of an env gene of a lentivirus of human or simian.
Lentiviruses according to the invention encompassed by the invention are HIV-1 and 2 and Simian immunodeficiency virus (SIV).
Because of the high mutation rate of HIV-1, HIV-2 and SIV viruses, the “mutated ENV protein”, as defined in the invention, encompasses two meanings.
According to the first meaning, the said “mutated ENV protein” is the unnatural result of the intervention of human beings.
According to the second meaning, the mutated ENV protein also encompasses naturally occurring variants for which up to now the non immunosuppressive properties remain unknown.
This second meaning takes into consideration the natural variability of HIV and SIV variants inside a same infected individual, wherein the said “mutated ENV protein” might be non immunosuppressive but its property is undetectable because an HIV infected patient always carries many HIV variants, the majority of which is immunosuppressive.
The three following proteins correspond to wild type sequences of the ENV protein of HIV-1, HIV-2 and SIV respectively. In the invention, they are considered as reference sequences of wild type ENV proteins.









SEQ ID NO: 417



wild type HIV-1



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERYLKDQQLLGIWGCS



 



GKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYTS



 



LIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYIK



 



IFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGPD



 



RPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRLR



 



DLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVSL



 



LNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 418



Wild type HIV-2



MCGRNQLFVASLLASACLIYCVQYVTVFYGVPVWRNASIPLFC



 



ATKNRDTWGTIQCLPDNDDYQEIALNVTEAFDAWNNTVTEQA



 



VEDVWSLFETSIKPCVKLTPLCVAMRCNSTTAKNTTSTPTTTTT



 



ANTTIGENSSCIRTDNCTGLGEEEMVDCQFNMTGLERDKKKLY



 



NETWYSKDVVCESNDTKKEKTCYMNHCNTSVITESCDKHYW



 



DTMRFRYCAPPGFALLRCNDTNYSGFEPNCSKVVAATCTRMM



 



ETQTSTWFGFNGTRAENRTYIYWHGRDNRTIISLNKFYNLTVH



 



CKRPGNKTVVPITLMSGLVFHSQPINRRPRQAWCWFKGEWKE



 



AMKEVKLTLAKHPRYKGTNDTEKIRFIAPGERSDPEVAYMWT



 



NCRGEFLYCNMTWFLNWVENRTNQTQHNYVPCHIKQIINTWH



 



KVGKNVYLPPREGQLTCNSTVTSIIANIDGGENQTNITFSAEVA



 



ELYRLELGDYKLIEVTPIGFAPTPVKRYSSAPVRNKRGVFVLGF



 



LGFLTTAGAAMGAASLTLSAQSRTLLAGIVQQQQQLLDVVKR



 



QQEMLRLTVWGTKNLQARVTAIEKYLKDQAQLNSWGCAFRQ



 



VCHTTVPWVNDTLTPDWNNMTWQEWEQRIRNLEANISESLEQ



 



AQIQQEKNMYELQKLNSWDVFGNWFDLTSWIKYIQYGVYIVV



 



GIIVLRIVIYVVQMLSRLRKGYRPVFSSPPAYFQQIHIHKDREQP



 



AREETEEDVGNSVGDNWWPWPIRYIHFLIRQLIRLLNRLYNICR



 



DLLSRSFQTLQLISQSLRRALTAVRDWLRFNTAYLQYGGEWIQ



 



EAFRAFARATGETLTNAWRGFWGTLGQIGRGILAVPRRIRQGA



 



EIALL



 



SEQ ID NO: 419



wild type SIV mac239



MGCLGNQLLIAILLLSVYGIYCTLYVTVFYGVPAWRNATIPLFC



 



ATKNRDTWGTTQCLPDNGDYSEVALNVTESFDAWNNTVTEQ



 



AIEDVWQLFETSIKPCVKLSPLCITMRCNKSETDRWGLTKSITT



 



TASTTSTTASAKVDMVNETSSCIAQDNCTGLEQEQMISCKFNM



 



TGLKRDKKKEYNETWYSADLVCEQGNNTGNESRCYMNHCNT



 



SVIQESCDKHYWDAIRFRYCAPPGYALLRCNDTNYSGFMPKCS



 



KVVVSSCTRMMETQTSTWFGFNGTRAENRTYIYWHGRDNRTI



 



ISLNKYYNLTMKCRRPGNKTVLPVTIMSGLVFHSQPINDRPKQ



 



AWCWFGGKWKDAIKEVKQTIVKHPRYTGTNNTDKINLTAPGG



 



GDPEVTFMWTNCRGEFLYCKMNWFLNWVEDRNTANQKPKE



 



QHKRNYVPCHIRQIINTWHKVGKNVYLPPREGDLTCNSTVTSLI



 



ANIDWIDGNQTNITMSAEVAELYRLELGDYKLVEITPIGLAPTD



 



VKRYTTGGTSRNKRGVFVLGFLGFLATAGSAMGAASLTLTAQ



 



SRTLLAGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTA



 



IEKYLKDQAQLNAWGCAFRQVCHTTVPWPNASLTPKWNNET



 



WQEWERKVDFLEENITALLEEAQIQQEKNMYELQKLNSWDVF



 



GNWFDLASWIKYIQYGVYIVVGVILLRIVIYIVQMLAKLRQGY



 



RPVFSSPPSYFQQTHIQQDPALPTREGKERDGGEGGGNSSWPW



 



QIEYIHFLIRQLIRLLTWLFSNCRTLLSRVYQILQPILQRLSATLQ



 



RIREVLRTELTYLQYGWSYFHEAVQAVWRSATETLAGAWGDL



 



WETLRRGGRWILAIPRRIRQGLELTLL






Variant in the invention encompasses SIV, HIV-1 and HIV-2 ENV proteins.
Variants of the HIV-1 mutated ENV proteins according to the invention have at least 70%, preferably at least 80%, more preferably at least 90% of identity with the wild type amino acid sequence of the HIV-1 ENV protein, and comprises the mutations as described above, and harbour no immunosuppressive activity.
Variants of the HIV-2 mutated ENV proteins according to the invention have at least 70%, preferably at least 80%, more preferably at least 90% of identity with the wild type amino acid sequence of the HIV-2 ENV protein, and comprises the mutations as described above, and harbour no immunosuppressive activity.
Variants of the SIV mutated ENV proteins according to the invention have at least 70%, preferably at least 80%, more preferably at least 90% of identity with the wild type amino acid sequence of the SIV ENV protein, and comprises the mutations as described above, and harbour no immunosuppressive activity.
The three following proteins (SEQ ID NO: 216, 420 and 421) correspond to three mutated sequences of the ENV protein of HIV-1, HIV-2 and SIV respectively. In the invention, they are considered as reference sequences of the mutated ENV proteins.
More specifically, SEQ ID NO: 216 corresponds to the SEQ ID NO: 417 in which the amino acid residue Y in position 5 (Xa) of the sequence A-[I/V]-E-[K/R]-XaXb-X-D-Q has been substituted by R.
SEQ ID NO: 420 corresponds to the SEQ ID NO: 418 in which the amino acid residue Y in position 5 (Xa) of the sequence A-[I/V]-E-[K/R]-XaXb-X-D-Q has been substituted by R.
SEQ ID NO: 421 corresponds to the SEQ ID NO: 419 in which the amino acid residue Y in position 5 (Xa) of the sequence A-[I/V]-E-[K/R]-XaXb-X-D-Q has been substituted by R.









SEQ ID NO: 216



mutated HIV-1



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGIWGCS



 



GKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYTS



 



LIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYIK



 



IFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGPD



 



RPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRLR



 



DLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVSL



 



LNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 420



mutated HIV-2



MCGRNQLFVASLLASACLIYCVQYVTVFYGVPVWRNASIPLFC



 



ATKNRDTWGTIQCLPDNDDYQEIALNVTEAFDAWNNTVTEQA



 



VEDVWSLFETSIKPCVKLTPLCVAMRCNSTTAKNTTSTPTTTTT



 



ANTTIGENSSCIRTDNCTGLGEEEMVDCQFNMTGLERDKKKLY



 



NETWYSKDVVCESNDTKKEKTCYMNHCNTSVITESCDKHYW



 



DTMRFRYCAPPGFALLRCNDTNYSGFEPNCSKVVAATCTRMM



 



ETQTSTWFGFNGTRAENRTYIYWHGRDNRTIISLNKFYNLTVH



 



CKRPGNKTVVPITLMSGLVFHSQPINRRPRQAWCWFKGEWKE



 



AMKEVKLTLAKHPRYKGTNDTEKIRFIAPGERSDPEVAYMWT



 



NCRGEFLYCNMTWFLNWVENRTNQTQHNYVPCHIKQIINTWH



 



KVGKNVYLPPREGQLTCNSTVTSIIANIDGGENQTNITFSAEVA



 



ELYRLELGDYKLIEVTPIGFAPTPVKRYSSAPVRNKRGVFVLGF



 



LGFLTTAGAAMGAASLTLSAQSRTLLAGIVQQQQQLLDVVKR



 



QQEMLRLTVWGTKNLQARVTAIEKRLKDQAQLNSWGCAFRQ



 



VCHTTVPWVNDTLTPDWNNMTWQEWEQRIRNLEANISESLEQ



 



AQIQQEKNMYELQKLNSWDVFGNWFDLTSWIKYIQYGVYIVV



 



GIIVLRIVIYVVQMLSRLRKGYRPVFSSPPAYFQQIHIHKDREQP



 



AREETEEDVGNSVGDNWWPWPIRYIHFLIRQLIRLLNRLYNICR



 



DLLSRSFQTLQLISQSLRRALTAVRDWLRFNTAYLQYGGEWIQ



 



EAFRAFARATGETLTNAWRGFWGTLGQIGRGILAVPRRIRQGA



 



EIALL



 



SEQ ID NO: 421



mutated SIV mac239



MGCLGNQLLIAILLLSVYGIYCTLYVTVFYGVPAWRNATIPLFC



 



ATKNRDTWGTTQCLPDNGDYSEVALNVTESFDAWNNTVTEQ



 



AIEDVWQLFETSIKPCVKLSPLCITMRCNKSETDRWGLTKSITT



 



TASTTSTTASAKVDMVNETSSCIAQDNCTGLEQEQMISCKFNM



 



TGLKRDKKKEYNETWYSADLVCEQGNNTGNESRCYMNHCNT



 



SVIQESCDKHYWDAIRFRYCAPPGYALLRCNDTNYSGFMPKCS



 



KVVVSSCTRMMETQTSTWFGFNGTRAENRTYIYWHGRDNRTI



 



ISLNKYYNLTMKCRRPGNKTVLPVTIMSGLVFHSQPINDRPKQ



 



AWCWFGGKWKDAIKEVKQTIVKHPRYTGTNNTDKINLTAPGG



 



GDPEVTFMWTNCRGEFLYCKMNWFLNWVEDRNTANQKPKE



 



QHKRNYVPCHIRQIINTWHKVGKNVYLPPREGDLTCNSTVTSLI



 



ANIDWIDGNQTNITMSAEVAELYRLELGDYKLVEITPIGLAPTD



 



VKRYTTGGTSRNKRGVFVLGFLGFLATAGSAMGAASLTLTAQ



 



SRTLLAGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTA



 



IEKRLKDQAQLNAWGCAFRQVCHTTVPWPNASLTPKWNNET



 



WQEWERKVDFLEENITALLEEAQIQQEKNMYELQKLNSWDVF



 



GNWFDLASWIKYIQYGVYIVVGVILLRIVIYIVQMLAKLRQGY



 



RPVFSSPPSYFQQTHIQQDPALPTREGKERDGGEGGGNSSWPW



 



QIEYIHFLIRQLIRLLTWLFSNCRTLLSRVYQILQPILQRLSATLQ



 



RIREVLRTELTYLQYGWSYFHEAVQAVWRSATETLAGAWGDL



 



WETLRRGGRWILAIPRRIRQGLELTLL






The invention also encompasses the variants of the “mutated simian or human lentiviral ENV protein”, harbouring the above mentioned mutations, and conferring a lack of immunosuppressive properties to said variant.
Variants of the HIV-1 mutated ENV proteins according to the invention have at least 70%, preferably at least 80%, more preferably at least 90% of identity with the reference mutated sequence of HIV-1 ENV protein (SEQ ID NO: 216), and comprises the mutations as described above, and harbour no immunosuppressive activity.
Variants of the HIV-2 mutated ENV proteins according to the invention have at least 70%, preferably at least 80%, more preferably at least 90% of identity with the reference mutated sequence of the HIV-2 ENV protein (SEQ ID NO: 420), and comprises the mutations as described above, and harbour no immunosuppressive activity.
Variants of the SIV mutated ENV proteins according to the invention have at least 70%, preferably at least 80%, more preferably at least 90% of identity with the reference mutated sequence of the SIV ENV protein (SEQ ID NO: 421), and comprises the mutations as described above, and harbour no immunosuppressive activity.
The immunosuppressive domain (ISU) of the lentivirus according to the invention can be delimited by the sequence SEQ ID NO: 6,







(SEQ ID NO: 6)


xGIVQQQxxLLxxxxxxQxxLxLxxWGxKxLQxRxxA[I/V]E[K/R]


 


YLxDQxxLx






in which x represents any amino acid.

SEQ ID NO: 6 corresponds to the non mutated ISU domain.
In this SEQ ID NO: 6, “x” (in small letters) is to be considered independently from “X” (in capital letters) used for the first time in SEQ ID NO: 416 of the present invention.
SEQ ID NO: 6 comprises SEQ ID NO: 1.
The most advantageous immunosuppressive domains of the wild type ENV proteins according to the invention comprise the following sequences:
HIV-1 ENV protein comprises the amino acid sequence AVERYLKDQ (SEQ ID NO: 7),
HIV-2 ENV protein comprises the amino acid sequence AIEKYLKDQ (SEQ ID NO: 8), and
SIV ENV protein comprises the amino acid sequence SEQ ID NO: 7 or 8.
When applying the mutations as defined above, the ISU domain looses its immunosuppressive properties.
In said SEQ ID NO: 6, the underlined amino acids are the essential amino acids.
In the invention, the ISU domain, as defined by SEQ ID NO: 6, is the minimal essential domain of the ENV protein according to the invention which harbours an immunosuppressive activity.







HIV-1


(SEQ ID NO: 366)


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERYLKDQQLLG


 


(SEQ ID NO: 367)


SGIVQQQNNLLRAIEAQQHLLKLTVWGIKQLQARILAVERYLKDQQLLG


 


(SEQ ID NO: 368)


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERYLKDQQLLG


 


(SEQ ID NO: 369)


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERYLKDQQLLG


 


(SEQ ID NO: 370)


SGIVQQQNNLLRAIEAQQQMLQLTVWGIKQLRARVLAVERYLRDQQLLG


 


(SEQ ID NO: 371)


SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERYLRDQQLLG


 


SIV


(SEQ ID NO: 372)


SGIVQQQNNLLKAIEAQQHLLQLSIWGVKQLQARLLAVERYLQDQQILG


 


(SEQ ID NO: 373)


SGIVQQQNNLLRAIEAQQHLLQLSVWGIKQLQARVLAIERYLRDQQILG


 


(SEQ ID NO: 374)


AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVSAIEKYLKDQAQLN


 


(SEQ ID NO: 375)


AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKYLKDQAQLN


 


HIV2


(SEQ ID NO: 376)


AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKYLKDQAQLN


 


(SEQ ID NO: 377)


AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKYLKDQALLN






The localization of an ISU domain can be determined in all ENV proteins of viruses as described in Benit et al. 2001, Journal of Virology, Vol. 75, No. 23, p. 11709-11719. In a broad meaning, the ISU domain is defined by its structure and its localization, irrespective of the fact that it possesses or not an immunosuppressive activity.
In the invention, the ISU domain refers to a specific domain in which a mutation can affect the immunosuppressive property of the ENV protein.
The immunosuppressive property of the ENV protein is preferably measured using in vivo procedures, which are representative of the physiological environment.
The immunosuppressive properties of the mutated ENV proteins according to the invention are measured according to an in vivo procedure to assay the immunosuppressive activity of a ENV protein disclosed previously [Mangeney and Heidmann Proc Natl Acad Sci USA 1998; 95: 14920-14925; Mangeney et al. Proc Natl Acad Sci USA, 2007, 104(51):20534-9].
As a physiological test, this in vivo procedure is performed using ENV proteins, or fragment thereof, which are not associated to another component or carrier proteins, such as BSA.
Briefly, a wild-type (wild type lentiviral ENV protein) or modified nucleic acid expressing the protein to be tested (mutated lentiviral ENV protein) is transfected in tumour cell lines such as MCA 205 or C18.1 cell lines by known transfection methods. The tumour cells expressing the protein to be tested are then injected especially subcutaneous (s.c.) injection to a host, generally mice. Following said injection, the establishment of tumour or, to the contrary, its rejection, is determined and the tumour area is measured. Tumor establishment was determined by palpation and tumor area (mm2) was determined by measuring perpendicular tumor diameters. Immunosuppression index is defined as i=(Senv−Snone)/Snone, wherein Senv is the maximum area reached by a tumour expressing an envelope protein and Snone is the maximum area reached by a tumour not expressing ENV protein (negative control).
According to an embodiment of the invention, the above defined ratio relative to the immunosuppressive index can be less than 0.2, and can even have a negative value (see FIGS. 2 and 3).
In vitro assay could be carried out, using high doses of synthetic peptides but they are indirect and less convincing, since the expression “immunosuppressive” is relevant when applied to animals possessing a complete immune system and not to cell lines.
An additional difficulty for the functional characterization of an ISU domain relies on the fact that the ISU carried by the retroviral ENV proteins is a highly structured proteic domain, with trimer formation within the complete ENV proteins (Caffrey M., Biochimica et Biophysica Acta, 1536:116-122, 2001; Caffrey et al., The EMBO Journal, Vol. 17, No. 16, p. 4572-4584, 1998). Such structures are not naturally formed with ISU peptides of limited length, and this is most probably why most studies carried out with peptides provide irrelevant results and/or are dependent on specific coupling of the peptides to carrier proteins (such as BSA, e.g. Denner et al., Current Science, AIDS 1994, 8:1063-1072).
As mentioned above, the ENV proteins according to the invention are mutated. This mutation is made in vitro. Thus, the mutated ENV proteins according to the invention are isolated, and does not correspond to naturally occurring counterpart.
As mentioned above, the lentiviral mutated ENV proteins are substantially devoid of immunosuppressive properties. This means that the mutated ENV proteins according to the invention have no, or have reduced immunosuppressive properties with respect to the natural non mutated ENV protein from a virus of the same species. For instance, a mutated HIV ENV protein according to the invention has reduced immunosuppressive properties with respect to the wild type HIV ENV protein.
In the invention, the terms “substantially devoid of immunosuppressive properties” means that the mutated ENV proteins according to the invention have an immunosuppressive index less than about 0.2 [Mangeney and Heidmann Proc Natl Acad Sci USA 1998; 95: 14920-14925; Mangeney et al. Proc Natl Acad Sci USA, 2007, 104(51):20534-9].
In the invention, structures responsible for the antigenicity of the mutated lentiviral ENV protein are essentially preserved.
As intended herein, the expression “structures responsible for antigenicity” relates to structures of the protein which are liable to interact with components of the immune system such as antibodies or membrane receptors of immune cells, in particular T cells.
The mutation(s) within the immunosuppressive domain of the lentiviral ENV proteins is (are) sufficient to decrease the immunosuppressive activity of the mutated lentiviral ENV protein with respect to the corresponding wild type ENV. However, it might be advantageous that another amino acid be also mutated because it ensures that the structure of the mutated ENV protein is essentially conserved with respect to the corresponding wild type ENV protein.
The mutated lentiviral ENV protein has substantially retained the structure, especially the antigenic structure, e.g., immunogenic determinants, of the original determined lentiviral ENV protein, i.e. the wild type non mutated lentiviral ENV protein.
These properties can be evaluated by measuring the fusion and/or infectious properties of said mutated lentiviral ENV with respect to the same properties in the wild type non mutated lentiviral ENV protein (see example).
Generally speaking, the mutated ENV protein involved in the present invention has an average length of about 700 to about 950 amino acids.
The invention encompasses fragments of the mutated ENV protein as defined above, provided that said fragment:

    
    
        comprises at least the sequence SEQ ID NO: 2, as defined above,
        comprises at least 40 amino acids, preferably comprises at least 50 amino acids,
        is substantially devoid of immunosuppressive properties, as defined above,
        preferably, comprises the extracellular parts of the ENV protein,
        retains the structure of the ENV protein from which it derives,
        harbours the same epitopes as the corresponding fragment in the wild type ENV protein.
    
    


According to a particular embodiment, the fragment of the mutated ENV protein of the invention can comprise about 40, 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550, 600, 650 or 700 amino acids. These values are given only in an illustrative way, as the man skilled in the art will understand that the fragment can comprise any number of amino acids comprised between 40 and 700.
Advantageously, the fragments according to the invention are such that, while retaining the antigenic structure of the full length mutated ENV protein, and thus of the wild type ENV protein, they have lost major antigenic regions that are responsible for antigenicity in another region than the region corresponding to the immunosuppressive domain.
The invention also relates to a pharmaceutical composition wherein the active substance is an isolated non naturally occurring mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, as above defined, or fragments thereof.
In a particular embodiment, the invention relates to a pharmaceutical composition as defined above comprising as active substance:

    
    
        a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
        said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein,
        X represents any amino acid,
        
            and either
        
        
        Xa is A, F, G, L or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or
        Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G or R, or
        Xa is A, F, G, L or R, and Xb is A, F, G or R,
        or
        b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said fragment comprising at least 40 amino acids,
        said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein,
        X represents any amino acid,
        
            and either
        
        
        Xa is A, F, G, L or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or
        Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G or R, or
        Xa is A, F, G, L or R, and Xb is A, F, G or R,
        in association with a pharmaceutically acceptable carrier.
    
    


The invention relates to a pharmaceutical composition as defined above comprising as active substance:

    
    
        a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
        said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein
        X represents any amino acid,
        
            and either
        
        
        Xa is A, F, G, L or R, and Xb is L, I, V, M or P, or
        Xa is Y, I, H, C or T, and Xb is A, F, G or R, or
        Xa is A, F, G, L or R, and Xb is A, F, G or R,
        or
        b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said fragment comprising at least 40 amino acids,
        said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein
        X represents any amino acid,
        
            and either
        
        
        Xa is A, F, G, L or R, and Xb is L, I, V, M or P, or
        Xa is Y, I, H, C or T, and Xb is A, F, G or R, or
        Xa is A, F, G, L or R, and Xb is A, F, G or R,
        in association with a pharmaceutically acceptable carrier.
    
    


According to a particular embodiment, the invention relates to a pharmaceutical composition as defined above comprising as active substance:

    
    
        a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
        said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or
        Xa is C, D, E, H, I, K, M, N, P, Q, 5, T, V, W or Y, and Xb is F, G or R,
        or
        Xa is F or L, and Xb is F, G or R,
        or
        Xa is A, G or R, and Xb is A,
        or
        Xa is A, G or R, and Xb is F, G or R,
        or
        b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said fragment comprising at least 40 amino acids,
        said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y,
        or
        Xa is C, D, E, H, I, K, M, N, P, Q, 5, T, V, W or Y, and Xb is F, G or R,
        or
        Xa is F or L, and Xb is F, G or R,
        or
        Xa is A, G or R, and Xb is A,
        or
        Xa is A, G or R, and Xb is F, G, R,
        in association with a pharmaceutically acceptable carrier.
    
    


According to a particular embodiment, the invention relates to a pharmaceutical composition as defined above comprising as active substance:

    
    
        a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
        said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is L, I, V, M or P,
        or
        Xa is Y, I, H, C or T, and Xb is F, G or R,
        or
        Xa is F or L, and Xb is F, G or R,
        or
        Xa is A, G or R, and Xb is A,
        or
        Xa is A, G or R, and Xb is F, G or R,
        or
        b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said fragment comprising at least 40 amino acids,
        said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is L, I, V, M or P,
        or
        Xa is Y, I, H, C or T, and Xb is F, G or R,
        or
        Xa is F or L, and Xb is F, G or R,
        or
        Xa is A, G or R, and Xb is A,
        or
        Xa is A, G or R, and Xb is F, G or R,
        in association with a pharmaceutically acceptable carrier.
    
    


According to another particular embodiment, the invention also relates to a pharmaceutical composition as defined above comprising as active substance:

    
    
        a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
        said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein,
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y,
        or
        Xa is C, D, E, H, I, K, M, N, P, Q, 5, T, V, W or Y, and Xb is F, G or R,
        or
        b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said fragment comprising at least 40 amino acids,
        said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein,
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y,
        or
        Xa is C, D, E, H, I, K, M, N, P, Q, 5, T, V, W or Y, and Xb is F, G or R,
        in association with a pharmaceutically acceptable carrier.
    
    


According to another particular embodiment, the invention relates to a pharmaceutical composition as defined above, comprising as active substance:

    
    
        a) an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of a wild type human or simian lentiviral ENV protein,
        said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein,
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is L, I, V, M or P,
        or
        Xa is Y, I, H, C or T, and Xb is F, G or R,
        or
        b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
        said fragment comprising at least 40 amino acids,
        said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:
    
    











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






    
    
        wherein,
        X represents any amino acid,
        
            and either
        
        
        Xa is A, G, or R, and Xb is L, I, V, M or P,
        or
        Xa is Y, I, H, C or T, and Xb is F, G or R,
        in association with a pharmaceutically acceptable carrier.
        According to another particular embodiment, the invention relates to a pharmaceutical composition as defined above,
        
            wherein
            
                Xa is R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or
                Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is R, or
                Xa is R, and Xb is R.
            
            
        
        
    
    


According to another particular embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said isolated mutated human or simian lentiviral ENV protein or said fragment of said isolated mutated human or simian lentiviral ENV protein comprises one of the following amino acid sequences:









(SEQ ID NO: 422)



A-I-E-K-Xa-Xb-X-DQ,



 



(SEQ ID NO: 423)



A-I-E-R-Xa-Xb-X-DQ,



 



(SEQ ID NO: 424)



A-V-E-K-Xa-Xb-X-DQ,



 



(SEQ ID NO: 425)



A-V-E-R-Xa-Xb-X-DQ.






In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein the resulting immunosuppressive domain, contained in the mutated lentiviral protein, comprises the amino acid sequence of the list consisting of: SEQ ID NO:9 to SEQ ID NO:37.
In the invention “SEQ ID NO: 9 to SEQ ID NO:37” encompass SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 23, SEQ ID NO: 24, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO: 27, SEQ ID NO: 28, SEQ ID NO: 29, SEQ ID NO: 30, SEQ ID NO: 31, SEQ ID NO: 32, SEQ ID NO: 33, SEQ ID NO: 34, SEQ ID NO: 35, SEQ ID NO: 36 and SEQ ID NO: 37.
The correspondence is the following one:









SEQ ID NO: 9



AVERALKD



 



SEQ ID NO: 10



AVERFLKD



 



SEQ ID NO: 11



AVERGLKD



 



SEQ ID NO: 12



AVERLLKD



 



SEQ ID NO: 13



AVERRLKD



 



SEQ ID NO: 14



AVERYAKD



 



SEQ ID NO: 15



AVERYFKD



 



SEQ ID NO: 16



AVERYGKD



 



SEQ ID NO: 17



AVERYRKD



 



SEQ ID NO: 18



AVERAAKD



 



SEQ ID NO: 19



AVERAFKD



 



SEQ ID NO: 20



AVERAGKD



 



SEQ ID NO: 21



AVERARKD



 



SEQ ID NO: 22



AVERFAKD



 



SEQ ID NO: 23



AVERFFKD



 



SEQ ID NO: 24



AVERFGKD



 



SEQ ID NO: 25



AVERFRKD



 



SEQ ID NO: 26



AVERGAKD



 



SEQ ID NO: 27



AVERGFKD



 



SEQ ID NO: 28



AVERGGKD



 



SEQ ID NO: 29



AVERGRKD



 



SEQ ID NO: 30



AVERLAKD



 



SEQ ID NO: 31



AVERLFKD



 



SEQ ID NO: 32



AVERLGKD



 



SEQ ID NO: 33



AVERLRKD



 



SEQ ID NO: 34



AVERRAKD



 



SEQ ID NO: 35



AVERRFKD



 



SEQ ID NO: 36



AVERRGKD



 



SEQ ID NO: 37



AVERRRKD






In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein the resulting immunosuppressive domain, contained in the mutated lentiviral protein, comprises the amino acid sequence of the list consisting of: SEQ ID NO:38 to SEQ ID NO:66.
In the invention “SEQ ID NO: 38 to SEQ ID NO:66” encompass SEQ ID NO: 38, SEQ ID NO: 39, SEQ ID NO: 40, SEQ ID NO: 41, SEQ ID NO: 42, SEQ ID NO: 43, SEQ ID NO: 44, SEQ ID NO: 45, SEQ ID NO: 46, SEQ ID NO: 47, SEQ ID NO: 48, SEQ ID NO: 49, SEQ ID NO: 50, SEQ ID NO: 51, SEQ ID NO: 52, SEQ ID NO: 53, SEQ ID NO: 54, SEQ ID NO: 55, SEQ ID NO: 56, SEQ ID NO: 57, SEQ ID NO: 58, SEQ ID NO: 59, SEQ ID NO: 60, SEQ ID NO: 61, SEQ ID NO: 62, SEQ ID NO: 63, SEQ ID NO: 64, SEQ ID NO: 65 and SEQ ID NO: 66.
The correspondence is the following one:









SEQ ID NO: 38



AIEKALKD



 



SEQ ID NO: 39



AIEKFLKD



 



SEQ ID NO: 40



AIEKGLKD



 



SEQ ID NO: 41



AIEKLLKD



 



SEQ ID NO: 42



AIEKRLKD



 



SEQ ID NO: 43



AIEKYAKD



 



SEQ ID NO: 44



AIEKYFKD



 



SEQ ID NO: 45



AIEKYGKD



 



SEQ ID NO: 46



AIEKYRKD



 



SEQ ID NO: 47



AIEKAAKD



 



SEQ ID NO: 48



AIEKAFKD



 



SEQ ID NO: 49



AIEKAGKD



 



SEQ ID NO: 50



AIEKARKD



 



SEQ ID NO: 51



AIEKFAKD



 



SEQ ID NO: 52



AIEKFFKD



 



SEQ ID NO: 53



AIEKFGKD



 



SEQ ID NO: 54



AIEKFRKD



 



SEQ ID NO: 55



AIEKGAKD



 



SEQ ID NO: 56



AIEKGFKD



 



SEQ ID NO: 57



AIEKGGKD



 



SEQ ID NO: 58



AIEKGRKD



 



SEQ ID NO: 59



AIEKLAKD



 



SEQ ID NO: 60



AIEKLFKD



 



SEQ ID NO: 61



AIEKLGKD



 



SEQ ID NO: 62



AIEKLRKD



 



SEQ ID NO: 63



AIEKRAKD



 



SEQ ID NO: 64



AIEKRFKD



 



SEQ ID NO: 65



AIEKRGKD



 



SEQ ID NO: 66



AIEKRRKD






In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein the resulting immunosuppressive domain, contained in the mutated lentiviral protein, comprises the amino acid sequence of the list consisting of: SEQ ID NO: 67 to SEQ ID NO: 95.
In the invention “SEQ ID NO: 67 to SEQ ID NO:95” encompass SEQ ID NO: 67, SEQ ID NO: 68, SEQ ID NO: 69, SEQ ID NO: 70, SEQ ID NO: 71, SEQ ID NO: 72, SEQ ID NO: 73, SEQ ID NO: 74, SEQ ID NO: 75, SEQ ID NO: 76, SEQ ID NO: 77, SEQ ID NO: 78, SEQ ID NO: 79, SEQ ID NO: 80, SEQ ID NO: 81, SEQ ID NO: 82, SEQ ID NO: 83, SEQ ID NO: 84, SEQ ID NO: 85, SEQ ID NO: 86, SEQ ID NO: 87, SEQ ID NO: 88, SEQ ID NO: 89, SEQ ID NO: 90, SEQ ID NO: 91, SEQ ID NO: 92, SEQ ID NO: 93, SEQ ID NO: 94 and SEQ ID NO: 95.
The correspondence is the following one:









SEQ ID NO: 67



AIERALKD



 



SEQ ID NO: 68



AIERFLKD



 



SEQ ID NO: 69



AIERGLKD



 



SEQ ID NO: 70



AIERLLKD



 



SEQ ID NO: 71



AIERRLKD



 



SEQ ID NO: 72



AIERYAKD



 



SEQ ID NO: 73



AIERYFKD



 



SEQ ID NO: 74



AIERYGKD



 



SEQ ID NO: 75



AIERYRKD



 



SEQ ID NO: 76



AIERAAKD



 



SEQ ID NO: 77



AIERAFKD



 



SEQ ID NO: 78



AIERAGKD



 



SEQ ID NO: 79



AIERARKD



 



SEQ ID NO: 80



AIERFAKD



 



SEQ ID NO: 81



AIERFFKD



 



SEQ ID NO: 82



AIERFGKD



 



SEQ ID NO: 83



AIERFRKD



 



SEQ ID NO: 84



AIERGAKD



 



SEQ ID NO: 85



AIERGFKD



 



SEQ ID NO: 86



AIERGGKD



 



SEQ ID NO: 87



AIERGRKD



 



SEQ ID NO: 88



AIERLAKD



 



SEQ ID NO: 89



AIERLFKD



 



SEQ ID NO: 90



AIERLGKD



 



SEQ ID NO: 91



AIERLRKD



 



SEQ ID NO: 92



AIERRAKD



 



SEQ ID NO: 93



AIERRFKD



 



SEQ ID NO: 94



AIERRGKD



 



SEQ ID NO: 95



AIERRRKD






As mentioned above, the previous ENV proteins having their ISU comprising the above sequence are devoid of immunosuppressive properties.
Thus, in other words, any ENV protein of human or simian lentivirus having in their ISU an amino acid sequence comprising of the sequences SEQ ID NO: 9 to 95, is devoid of immunosuppressive properties.
In other words, a simian or human lentiviral ENV protein comprising, within its ISU domain, an amino acid sequence selected from SEQ ID NO: 9 to 95 is devoid of immunosuppressive properties.
In particular, the invention relates to a pharmaceutical composition as defined above, wherein said isolated mutated human or simian lentiviral ENV protein or said fragment of said isolated mutated human or simian lentiviral ENV protein comprises one of the amino acid sequences:

    
    
        SEQ ID NO: 13, SEQ ID NO: 42, SEQ ID NO: 71,
        SEQ ID NO: 9 to 12,
        SEQ ID NO: 14 to 41,
        SEQ ID NO: 43 to 70, and
        SEQ ID NO: 72 to 95.
    
    


In particular, the invention relates to a pharmaceutical composition as defined above, wherein said isolated mutated human or simian lentiviral ENV protein or said fragment of said isolated mutated human or simian lentiviral ENV protein comprises one of the amino acid sequences:

    
    
        SEQ ID NO: 13, SEQ ID NO: 42, SEQ ID NO: 71,
        SEQ ID NO: 9, 11, 15 to 21, 23 to 29, 31 to 38, 40, 44 to 50, 52 to 58, 60 to 67, 69, 73 to 79, 81 to 87, 89 to 95.
    
    


In the invention, the fragments of the mutated ENV proteins according to the invention comprise or consist of the following sequences: SEQ ID NO: 67 to 211.
These fragments are also devoid of immunosuppressive properties.
However, these fragments retain the structure and the antigenicity of the corresponding immunosuppressive domain that is not mutated, i.e. the wild type immunosuppressive domain.
In the invention, the fragments of the mutated ENV proteins according to the invention comprise or consist of the following sequences: SEQ ID NO: 96 to 211.
The correspondences are as follows









SEQ ID NO: 96



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERAL



 



KDQQLLG



 



SEQ ID NO: 97



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERFL 



 



KDQQLLG



 



SEQ ID NO: 98



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERGL 



 



KDQQLLG



 



SEQ ID NO: 99



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERLL 



 



KDQQLLG



 



SEQ ID NO: 100



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERRL 



 



KDQQLLG



 



SEQ ID NO: 101



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERYA 



 



KDQQLLG



 



SEQ ID NO: 102



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERYF 



 



KDQQLLG



 



SEQ ID NO: 103



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERYG 



 



KDQQLLG



 



SEQ ID NO: 104



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERYR 



 



KDQQLLG



 



SEQ ID NO: 105



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERAA 



 



KDQQLLG



 



SEQ ID NO: 106



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERAF 



 



KDQQLLG



 



SEQ ID NO: 107



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERAG 



 



KDQQLLG



 



SEQ ID NO: 108



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERAR 



 



KDQQLLG



 



SEQ ID NO: 109



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERFA 



 



KDQQLLG



 



SEQ ID NO: 110



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERFF 



 



KDQQLLG



 



SEQ ID NO: 111



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERFG 



 



KDQQLLG



 



SEQ ID NO: 112



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERFR 



 



KDQQLLG



 



SEQ ID NO: 113



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERGA 



 



KDQQLLG



 



SEQ ID NO: 114



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERGF 



 



KDQQLLG



 



SEQ ID NO: 115



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERGG 



 



KDQQLLG



 



SEQ ID NO: 116



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERGR 



 



KDQQLLG



 



SEQ ID NO: 117



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERLA 



 



KDQQLLG



 



SEQ ID NO: 118



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERLF 



 



KDQQLLG



 



SEQ ID NO: 119



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERLG 



 



KDQQLLG



 



SEQ ID NO: 120



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERLR 



 



KDQQLLG



 



SEQ ID NO: 121



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERRA 



 



KDQQLLG



 



SEQ ID NO: 122



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERRF 



 



KDQQLLG



 



SEQ ID NO: 123



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERRG 



 



KDQQLLG



 



SEQ ID NO: 124



SGIVQQQSNLLRAIQARQHMLQLTVWGIKQLQARVLAVERRR 



 



KDQQLLG



 



SEQ ID NO: 125



AGIVQQQQQLLDVVKRQQLMLRLTVWGTKNLQARVTAIEKA 



 



LKDQAQLNSWGCAFRQ



 



SEQ ID NO: 126



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKF 



 



LKDQAQLNSWGCAFRQ



 



SEQ ID NO: 127



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKG 



 



LKDQAQLNSWGCAFRQ



 



SEQ ID NO: 128



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKL 



 



LKDQAQLNSWGCAFRQ



 



SEQ ID NO: 129



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKR 



 



LKDQAQLNSWGCAFRQ



 



SEQ ID NO: 130



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKY 



 



AKDQAQLNSWGCAFRQ



 



SEQ ID NO: 131



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKY 



 



FKDQAQLNSWGCAFRQ



 



SEQ ID NO: 132



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKY 



 



GKDQAQLNSWGCAFRQ



 



SEQ ID NO: 133



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKY 



 



RKDQAQLNSWGCAFRQ



 



SEQ ID NO: 134



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKA 



 



AKDQAQLNSWGCAFRQ



 



SEQ ID NO: 135



AGIVQQQQQLLDVVKRQQLMLRLTVWGTKNLQARVTAIEKA 



 



FKDQAQLNSWGCAFRQ



 



SEQ ID NO: 136



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKA 



 



GKDQAQLNSWGCAFRQ



 



SEQ ID NO: 137



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKA 



 



RKDQAQLNSWGCAFRQ



 



SEQ ID NO: 138



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKF 



 



AKDQAQLNSWGCAFRQ



 



SEQ ID NO: 139



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKF 



 



FKDQAQLNSWGCAFRQ



 



SEQ ID NO: 140



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKF 



 



GKDQAQLNSWGCAFRQ



 



SEQ ID NO: 141



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKF 



 



RKDQAQLNSWGCAFRQ



 



SEQ ID NO: 142



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKG



 



AKDQAQLNSWGCAFRQ



 



SEQ ID NO: 143



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKG 



 



FKDQAQLNSWGCAFRQ



 



SEQ ID NO: 144



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKG 



 



GKDQAQLNSWGCAFRQ



 



SEQ ID NO: 145



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKG 



 



RKDQAQLNSWGCAFRQ



 



SEQ ID NO: 146



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKL 



 



AKDQAQLNSWGCAFRQ



 



SEQ ID NO: 147



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKL 



 



FKDQAQLNSWGCAFRQ



 



SEQ ID NO: 148



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKL 



 



GKDQAQLNSWGCAFRQ



 



SEQ ID NO: 149



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKL 



 



RKDQAQLNSWGCAFRQ



 



SEQ ID NO: 150



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKR 



 



AKDQAQLNSWGCAFRQ



 



SEQ ID NO: 151



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKR 



 



FKDQAQLNSWGCAFRQ



 



SEQ ID NO: 152



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKR 



 



GKDQAQLNSWGCAFRQ



 



SEQ ID NO: 153



AGIVQQQQQLLDVVKRQQEMLRLTVWGTKNLQARVTAIEKR 



 



RKDQAQLNSWGCAFRQ



 



SEQ ID NO: 154



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKA 



 



LQDQARLNSWGCAFRQ



 



SEQ ID NO: 155



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKF 



 



LQDQARLNSWGCAFRQ



 



SEQ ID NO: 156



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKG 



 



LQDQARLNSWGCAFRQ



 



SEQ ID NO: 157



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKL 



 



LQDQARLNSWGCAFRQ



 



SEQ ID NO: 158



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKR 



 



LQDQARLNSWGCAFRQ



 



SEQ ID NO: 159



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKY 



 



AQDQARLNSWGCAFRQ



 



SEQ ID NO: 160



AGIVQQQQQLLDVVKRQ0ELLRLTVWGTKNL0ARVTAIEKY 



 



FQDQARLNSWGCAFRQ



 



SEQ ID NO: 161



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKY 



 



GQDQARLNSWGCAFRQ



 



SEQ ID NO: 162



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKY 



 



RQDQARLNSWGCAFRQ



 



SEQ ID NO: 163



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKA 



 



AQDQARLNSWGCAFRQ



SEQ ID NO: 164



 



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKA 



 



FQDQARLNSWGCAFRQ



 



SEQ ID NO: 165



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKA 



 



GQDQARLNSWGCAFRQ



 



SEQ ID NO: 166



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKA 



 



RQDQARLNSWGCAFRQ



 



SEQ ID NO: 167



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKF 



 



AQDQARLNSWGCAFRQ



 



SEQ ID NO: 168



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKF 



 



FQDQARLNSWGCAFRQ



 



SEQ ID NO: 169



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKF 



 



GQDQARLNSWGCAFRQ



 



SEQ ID NO: 170



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKF 



 



RQDQARLNSWGCAFRQ



 



SEQ ID NO: 171



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKG 



 



AQDQARLNSWGCAFRQ



 



SEQ ID NO: 172



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKG 



 



FQDQARLNSWGCAFRQ



 



SEQ ID NO: 173



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKG 



 



GQDQARLNSWGCAFRQ



 



SEQ ID NO: 174



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKG 



 



RQDQARLNSWGCAFRQ



 



SEQ ID NO: 175



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKL 



 



AQDQARLNSWGCAFRQ



 



SEQ ID NO: 176



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKL 



 



FQDQARLNSWGCAFRQ



 



SEQ ID NO: 177



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKL 



 



GQDQARLNSWGCAFRQ



 



SEQ ID NO: 178



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKL 



 



RQDQARLNSWGCAFRQ



 



SEQ ID NO: 179



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKR 



 



AQDQARLNSWGCAFRQ



 



SEQ ID NO: 180



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKR 



 



FQDQARLNSWGCAFRQ



 



SEQ ID NO: 181



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKR 



 



GQDQARLNSWGCAFRQ



 



SEQ ID NO: 182



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQARVTAIEKR 



 



RQDQARLNSWGCAFRQ



 



SEQ ID NO: 183



AGIVQOQQQLLDVVKROQELLRLTVWGTKNLQTRVTAIEKA 



 



LKDQAQLNAWGCAFRQ



 



SEQ ID NO: 184



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKF 



 



LKDQAQLNAWGCAFRQ



 



SEQ ID NO: 185



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKG 



 



LKDQAQLNAWGCAFRQ



 



SEQ ID NO: 186



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKL 



 



LKDQAQLNAWGCAFRQ



 



SEQ ID NO: 187



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKR 



 



LKDQAQLNAWGCAFRQ



 



SEQ ID NO: 188



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKY 



 



AKDQAQLNAWGCAFRQ



 



SEQ ID NO: 189



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKY 



 



FKDQAQLNAWGCAFRQ



 



SEQ ID NO: 190



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKY 



 



GKDQAQLNAWGCAFRQ



 



SEQ ID NO: 191



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKY 



 



RKDQAQLNAWGCAFRQ



 



SEQ ID NO: 192



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKA 



 



AKDQAQLNAWGCAFRQ



 



SEQ ID NO: 193



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKA 



 



FKDQAQLNAWGCAFRQ



 



SEQ ID NO: 194



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKA 



 



GKDQAQLNAWGCAFRQ



 



SEQ ID NO: 195



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKA 



 



RKDQAQLNAWGCAFRQ



 



SEQ ID NO: 196



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKF 



 



AKDQAQLNAWGCAFRQ



 



SEQ ID NO: 197



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKF 



 



FKDQAQLNAWGCAFRQ



 



SEQ ID NO: 198



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKF 



 



GKDQAQLNAWGCAFRQ



 



SEQ ID NO: 199



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAOEKF 



 



RKDQAQLNAWGCAFRQ



 



SEQ ID NO: 200



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKG 



 



AKDQAQLNAWGCAFRQ



 



SEQ ID NO: 201



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKG 



 



FKDQAQLNAWGCAFRQ



 



SEQ ID NO: 202



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKG 



 



GKDQAQLNAWGCAFRQ



 



SEQ ID NO: 203



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKG 



 



RKDQAQLNAWGCAFRQ



SEQ ID NO: 204



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKL 



 



AKDQAQLNAWGCAFRQ



 



SEQ ID NO: 205



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKL 



 



FKDQAQLNAWGCAFRQ



 



SEQ ID NO: 206



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKL



 



GKDQAQLNAWGCAFRQ



 



SEQ ID NO: 207



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKL 



 



RKDQAQLNAWGCAFRQ



 



SEQ ID NO: 208



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKR 



 



AKDQAQLNAWGCAFRQ



 



SEQ ID NO: 209



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKR 



 



FKDQAQLNAWGCAFRQ



 



SEQ ID NO: 210



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKR 



 



GKDQAQLNAWGCAFRQ



 



SEQ ID NO: 211



AGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIEKR 



 



RKDQAQLNAWGCAFRQ






In particular, the invention relates to a pharmaceutical composition as defined above, wherein said isolated mutated human or simian lentiviral ENV protein or said fragment of said isolated mutated human or simian lentiviral ENV protein comprises one of the amino acid sequences: SEQ ID NO: 96, 98, 100, 102 to 108, 110 to 116, 118 to 125, 127, 129, 131 to 137, 139 to 145, 147 to 154, 156, 158, 160 to 166, 168 to 174, 176 to 183, 185, 187, 189 to 195, 197 to 203, 205 to 211.
Advantageously, the invention relates to the pharmaceutical composition as defined above, wherein said mutated protein consists of one of the following sequences SEQ ID NO: 212 to 269









HIV-1 LAI



SEQ ID NO: 212



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNKKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERALKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFMTNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 213



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERALKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 214



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERGLKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 215



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERLLKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 216



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQFILLQLTVWGIKQLQARIL



 



AVERRLKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 217



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERYAKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSILIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



WQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 218



MRVKKKYQHLWRWGWKWGTMLLGIMLMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERYFKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 219



MRVKRKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISIAVDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERYGKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 220



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERYRKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 221



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERAAKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 222



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERAFKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 223



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERAGKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 224



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERARKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 225



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERFAKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 226



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERFFKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 227



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERFGKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 228



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERFRKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSKIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 229



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERGAKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 230



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERGFKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 231



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERGGKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 232



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERGRKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 233



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERLAKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 234



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERLFKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 235



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERLGKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 236



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERLRKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 237



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERRAKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 238



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERRFKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 239



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERRGKDQQLLGIWGCSGKLICTFAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 240



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVY



 



YGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDP



 



NPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPC



 



VKLTPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIK



 



NCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTS



 



VITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVS



 



TVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIV



 



QLNQSVEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQA



 



HCNISRAKWNATLKQIASKLREQFGNNKTIIFKQSSGGDPEIV



 



THSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTIT



 



LPCRIKQFINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDG



 



GNNNNGSEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPT



 



KAKRRVVQREKRAVGIGALFLGFLGAAGSTMGARSMTLTV



 



QARQLLSGIVOQQNNLLRAIEAQQHLLQLTVWGIKQLQARIL



 



AVERRRKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQI



 



WNNMTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLEL



 



DKWASLWNWFNITNWLWYIKIFIMIVGGLVGLRIVFAVLSIV



 



NRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRL



 



VNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGW



 



EALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIE



 



VVQGACRAIRHIPRRIRQGLERILL



 



HIV-BH10



SEQ ID NO: 241



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERA



 



LKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 242



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERF



 



LKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 243



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERG



 



LKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 244



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERL



 



LKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 245



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERR



 



LKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 246



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERY



 



AKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 247



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERY



 



FKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNMT



 



WMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASL



 



WNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVRQ



 



GYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSLA



 



LIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYW



 



WNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGAY



 



RAIRHIPRRIRQGLERILL



 



SEQ ID NO: 248



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERY



 



GKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 249



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERY



 



RKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 250



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV 



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERA



 



AKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 251



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERA



 



FKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNMT



 



WMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASL



 



WNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVRQ



 



GYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSLA



 



LIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYW



 



WNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGAY



 



RAIRHIPRRIRQGLERILL



 



SEQ ID NO: 252



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERA



 



GKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 253



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV 



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERA



 



RKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 254



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERF



 



AKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 255



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERF



 



FKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNMT



 



WMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASL



 



WNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVRQ



 



GYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSLA



 



LIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYW



 



WNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGAY



 



RAIRHIPRRIRQGLERILL



 



SEQ ID NO: 256



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSEEPIPIHYCAPAGFAILKCNNKTENGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQEGNNKTIIEKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERF



 



GKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 257



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSEEPIPIHYCAPAGFAILKCNNKTENGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQEGNNKTIIEKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERF



 



RKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 258



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSEEPIPIHYCAPAGFAILKCNNKTENGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQEGNNKTIIEKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERG



 



AKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 259



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERG



 



FKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNMT



 



WMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASL



 



WNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVRQ



 



GYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSLA



 



LIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYW



 



WNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGAY



 



RAIRHIPRRIRQGLERILL



 



SEQ ID NO: 260



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERG



 



GKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 261



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERG



 



RKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 262



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERL



 



AKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 263



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERL



 



FKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNMT



 



WMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASL



 



WNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVRQ



 



GYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSLA



 



LIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYW



 



WNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGAY



 



RAIRHIPRRIRQGLERILL



 



SEQ ID NO: 264



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERL



 



GKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 265



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQEGNNKTIIEKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERL



 



RKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 266



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSEEPIPIHYCAPAGFAILKCNNKTENGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQEGNNKTIIEKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERR



 



AKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 267



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSEEPIPIHYCAPAGFAILKCNNKTENGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQEGNNKTIIEKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERR



 



FKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNMT



 



WMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASL



 



WNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVRQ



 



GYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSLA



 



LIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYW



 



WNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGAY



 



RAIRHIPRRIRQGLERILL



 



SEQ ID NO: 268



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERR



 



GKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 269



MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTV



 



YYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTD



 



PNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKP



 



CVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNI



 



STSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQAC



 



PKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCT



 



HGIRPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQS



 



VEINCTRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNIS



 



RAKWNNTLKQIDSKLREQFGNNKTIIFKQSSGGDPEIVTHSFN



 



CGGEFFYCNSTQLFNSTWFNSTWSTKGSNNTEGSDTITLPCRI



 



KQIINMWQEVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSN



 



NESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKR



 



RVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQL



 



LSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERR



 



RKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNNM



 



TWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWAS



 



LWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSVVNRVR



 



QGYSPLSFQTHLPIPRGPDRPEGIEEEGGERDRDRSIRLVNGSL



 



ALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKY



 



WWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQG



 



AYRAIRHIPRRIRQGLERILL






The invention also encompasses the variants of the above sequences, harbouring the above mentioned mutations, and conferring to said variant a lack of immunosuppressive properties.
In particular, the invention relates to a pharmaceutical composition as defined above, wherein said isolated mutated human or simian lentiviral ENV protein consists of one of the amino acid sequences: SEQ ID NO: 212, 214, 216, 218 to 224, 226 to 232, 234 to 241, 243, 245, 247 to 253, 255 to 261, 263 to 269.
The invention also relates to a pharmaceutical composition as defined above, wherein said mutated protein comprises additional mutations either downstream the C-terminal end of the sequence SEQ ID NO: 416 or upstream the N-terminal end of SEQ ID NO: 416.
These additional mutations can be advantageous to maintain the three-dimensional structure of the immunosuppressive domain and of the ENV protein (see details concerning the membrane expression of the ENV protein [see FIG. 4 and example] and concerning infectivity [see FIG. 5 and example]).
In a particular embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said mutated protein comprises an additional mutation in one at least of the amino acids at positions 29, 36 and 37 of SEQ ID NO: 426:







(SEQ ID NO: 426)


A[I/V]E[K/R]XaXbX1DQX2X3LX4X5WGC[A/S][F/G]X6X7CVX8


 


TX9VPXcX10Z1Z2Z3Z4Z5XdXe[S/T]






wherein

    
    
        Xa and Xb are as defined above,
        X1 to X10 represent any amino acid,
        Z1 to Z5 represent no amino acid or any amino acid, independently from each other such that
        
            Xc is A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, Y, or deleted, preferably A, D, or N,
            Xd is A, C, D, E, F, G, H, I, L, M, N, P, Q, R, S, T, V, Y, W, or deleted, preferably A, G, S or Y,
            Xe is A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, T, V, Y, W, or deleted, preferably A, D or N.
        
        
    
    


This sequence contains the following amino acid sequence A[I/V]E[K/R]XaXbX1DQ (SEQ ID NO: 416) elongated on its C-terminal end in which additional mutations are present. It is to be noted that “X1” in the above mentioned sequence SEQ ID NO: 426 has the same meaning as “X” in SEQ ID NO: 416.
In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, said mutated protein comprising the amino acid sequences of the group consisting of SEQ ID NO: 271 to SEQ ID NO: 283.







SEQ ID NO: 271, contains the mutations Y41R, K72A:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNASLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 272, contains the mutations Y41R, K72G:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNGSLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 273, contains the mutations Y41R, K72S:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNSSLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 274, contains the mutations Y41R, W65D:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPDNASWSNKSLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 275, contains the mutations Y41R, W65A:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLIVTTAVPANASWSNKSLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 276, contains the mutations Y41R, W65N:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPNNASWSNKSLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 277, contains the mutations Y41R, S73D:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNKDLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 278, contains the mutations Y41R, S73A:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNKALEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 279, contains the mutations Y41R, S73N:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNKNLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 280, contains the mutations Y41R, K72Y:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNYSLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 281, contains the mutations R40A, Y41R,


K72A:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVEARLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNASLEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 282, contains the mutations Y41R, K72A,


S73A:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPWNASWSNAALEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.


 


SEQ ID NO: 283, contains the mutations Y41R, W65A,


K72A, S73A:


SGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGI


 


WGCSGKLICTTAVPANASWSNAALEQIWNNMTWMEWDREINNYTSLIHSL


 


IEESQNQQEKNEQEL.






The mutations in the above mutated peptides are indicated by the amino acid residues which are bolded and underlined.
In another aspect, the invention relates to a pharmaceutical composition as defined above, comprising an additional mutation of one at least of the amino acids X11, X12, X13 and X14 in the following sequence (containing the above defined SEQ ID NO: 416 sequence):









(SEQ ID NO: 428)



X11X12 X13X14I LA[I/V]E[K/R]XaXbX1DQ,






wherein

X1 represents any amino acid,

Xa and Xb are as defined above,

X11 is:

    
    
        either deleted,
        or A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, Y or W, in particular A, G or R, and/or

X12 is:

        either deleted,
        or A, C, D, E, F, G, H, I, K, L, M, N, P, R, S, T, V, Y or W, in particular A, G or R, and/or

X13 is:

        either deleted,
        or C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, Y or W, in particular R or G, and/or

X14 is:

        either deleted,
        or A, C, D, E, F, G, H, I, K, L, M, N, P, Q, S, T, V, Y or W, in particular A or G.
    
    


This sequence contains the following amino acid sequence A[I/V]E[K/R]XaXbX1DQ (SEQ ID NO: 416) elongated on its N-terminal end in which additional mutations are present. It is to be noted that “X1” in SEQ ID NO: 428 has exactly the same meaning as “X” in SEQ ID NO: 416.
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said mutated lentiviral protein, said variant or said fragment harbour a three-dimensional structure similar to the structure of the natural non mutated lentiviral ENV protein, non mutated lentiviral ENV variant or non mutated lentiviral ENV fragment thereof.
The skilled person knows how to measure the antigenicity, by using standard proceedings.
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said mutated lentiviral protein, said variant or said fragment are expressed at the plasma membrane at a level substantially identical to the expression at the plasma membrane of the natural non mutated lentiviral ENV protein, non mutated lentiviral ENV variant or non mutated lentiviral ENV fragment thereof.
The membrane expression of the lentiviral ENV protein according to the invention can be measured by any techniques allowing determination of a plasma membrane protein. For instance, cells can be transfected with an expression vector allowing the expression of the mutated lentiviral ENV protein according to the invention. Cells are then incubated with an antibody recognizing specifically the extracellular part of said lentiviral mutated ENV protein. The complex (antibody/ENV protein) is detected by another antibody, and the complex can be quantified by flow cytometry (see for instance FIG. 4, and example).
If no complex is detected, the mutated ENV protein is not expressed at the plasma membrane. On the contrary, if the protein is expressed, this means that the mutated ENV protein is expressed at the plasma membrane.
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said mutated lentiviral ENV protein is such that a lentivirus, or a pseudotype, expressing said mutated lentiviral ENV protein, instead of the non mutated ENV protein, has a viral titer similar to the viral titer of said lentivirus, or pseudotype, expressing the non mutated lentiviral protein.
Viral titer is measured according to a commonly used protocol, and as described in the example (see FIG. 5).
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said mutated lentiviral ENV protein is a HIV-1 lentiviral protein consisting of the amino acid sequences SEQ ID NO: 284 to SEQ ID NO: 292.









SEQ ID NO: 284



Y41R



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 285



Y41R, K72A



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNASLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 286 



Y41R, K72G



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNGSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 287



Y41R, K72S



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERRLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNSSLEQIWNNMTWMEWDREINNYTS



 



LIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYIK



 



IFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGPD



 



RPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRLR



 



DLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVSL



 



LNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 288



Y41G



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERGLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 289



Y41L



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERLLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 290



Y41A



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERALKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 291



Y41F



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERFLKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL



 



SEQ ID NO: 292



L42R



MRVKEKYQHLWRWGWKWGTMLLGILMICSATEKLWVTVYY



 



GVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNP



 



QEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKL



 



TPLCVSLKCTDLGNATNTNSSNTNSSSGEMMMEKGEIKNCSFN



 



ISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYTLTSCNTSVITQACP



 



KVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGI



 



RPVVSTQLLLNGSLAEEEVVIRSANFTDNAKTIIVQLNQSVEINC



 



TRPNNNTRKSIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWN



 



ATLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFY



 



CNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQFINMWQ



 



EVGKAMYAPPISGQIRCSSNITGLLLTRDGGNNNNGSEIFRPGG



 



GDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAV



 



GIGALFLGFLGAAGSTMGARSMTLTVQARQLLSGIVQQQNNLL



 



RAIEAQQHLLQLTVWGIKQLQARILAVERYRKDQQLLGIWGC



 



SGKLICTTAVPWNASWSNKSLEQIWNNMTWMEWDREINNYT



 



SLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYI



 



KIFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGP



 



DRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRL



 



RDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVS



 



LLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL






Also, the following proteins are advantageous in the invention:









SEQ ID NO: 293



SIV MM251 L42R



MGCLGNQLLIAILLLSVYGIYCTQYVTVFYGVPAWRNATIPLFC



 



ATKNRDTWGTTQCLPDNGDYSELALNVTESFDAWENTVTEQA



 



IEDVWQLFETSIKPCVKLSPLCITMRCNKSETDRWGLTKSSTTIT



 



TAAPTSAPVSEKIDMVNETSSCIAQNNCTGLEQEQMISCKFTMT



 



GLKRDKTKEYNETWYSTDLVCEQGNSTDNESRCYMNHCNTS



 



VIQESCDKHYWDTIRFRYCAPPGYALLRCNDTNYSGFMPKCSK



 



VVVSSCTRMMETQTSTWFGFNGTRAENRTYIYWHGRDNRTIIS



 



LNKYYNLTMKCRRPGNKTVLPVTIMSGLVFHSQPINDRPKQA



 



WCWFGGKWKDAIKEVKQTIVKHPRYTGTNNTDKINLTAPGGG



 



DPEVTFMWTNCRGEFLYCKMNWFLNWVEDRDVTTQRPKERH



 



RRNYVPCHIRQIINTWHKVGKNVYLPPREGDLTCNSTVTSLIAN



 



IDWTDGNQTSITMSAEVAELYRLELGDYKLVEITPIGLAPTDVK



 



RYTTGGTSRNKRGVFVLGFLGFLATAGSAMGAASLTLTAQSR



 



TLLAGIVQQQQQLLDVVKRQQELLRLTVWGTKNLQTRVTAIE



 



KYRKDQAQLNAWGCAFRQVCHTTVPWPNASLTPDWNNDTW



 



QEWERKVDFLEENITALLEEAQIQQEKNMYELQKLNSWDVFG



 



NWFDLASWIKYIQYGIYVVVGVILLRIVIYIVQMLAKLRQGYRP



 



VFSSPPSYFQXTHTQQDPALPTREGKEGDGGEGGGNSSWPWQI



 



EYIHFLIRQLIRLLTWLFSNCRTLLSRAYQILQPILQRLSATLRRV



 



REVLRTELTYLQYGWSYFHEAVQAGWRSATETLAGAWRDLW



 



ETLRRGGRWILAIPRRIRQGLELTLL



 



SEQ ID NO: 294



HIV2 L42R



MEPGRNQLFVVILLTSACLVYCSQYVTVFYGIPAWKNASIPLFC



 



ATKNRDTWGTIQCLPDNDDYQEIILNVTEAFDAWNNTVTEQA



 



VEDVWHLFETSIKPCVKLTPLCVAMNCSRVQGNTTTPNPRTSS



 



STTSRPPTSAASIINETSNCIENNTCAGLGYEEMMQCEFNMKGL



 



EQDKKRRYKDTWYLEDVVCDNTTAGTCYMRHCNTSIIKESCD



 



KHYWDAMRFRYCAPPGFALLRCNDTNYSGFEPKCTKVVAASC



 



TRMMETQTSTWFGFNGTRAENRTYIYWHGRDNRTIISLNKYY



 



NLTMRCKRPGNKTVLPITLMSGLVFHSQPINTRPRQAWCRFGG



 



RWREAMQEVKQTLVQHPRYKGINDTGKINFTKPGAGSDPEVA



 



FMWTNCRGEFLYCNMTWFLNWVEDKNQTRRNYCHIKQIINT



 



WHKVGKNVYLPPREGELACESTVTSIIANIDIDKNRTHTNITFS



 



AEVAELYRLELGDYKLIEITPIGFAPTDQRRYSSTPVRNKRGVF



 



VLGFLGFLATAGSAMGARSLTLSAQSRTLLAGIVQQQQQLLDV



 



VKRQQEMLRLTVWGTKNLQARVTAIEKYRKHQAQLNSWGC



 



AFRQVCHTTVPWVNDSLSPDWKNMTWQEWEKQVRYLEANIS



 



QSLEEAQIQQEKNMYELQKLNSWDILGNWFDLTSWVKYIQYG



 



VHIVVGIIALRIAIYVVQLLSRFRKGYRPVFSSPPGYLQQIHIHK



 



DRGQPANEGTEEDVGGDSGYDLWPWPINYVQFLIHLLTRLLIG



 



LYNICRDLLSKNSPTRRLISQSLTAIRDWLRLKAAQLQYGCEWI



 



QEAFQAFARTTRETLAGAWGWLWEAARRIGRGILAVPRRIRQ



 



GAELALL






Advantageously: the mutated lentiviral proteins are
1—SEQ ID NO: 284 to 294; these mutated ENV proteins having substantially no immunosuppressive properties advantageously,
2—SEQ ID NO: 284 to SEQ ID NO: 292; these mutated ENV proteins having substantially no immunosuppressive properties and being highly expressed at the plasma membrane, more advantageously,
3—SEQ ID NO: 284 to SEQ ID NO: 291; these mutated ENV proteins having substantially no immunosuppressive properties, being highly expressed at the plasma membrane and conferring to a virus expressing them a medium or high viral titer, in particular
4—Y41F (SEQ ID NO: 291), Y41L (SEQ ID NO: 289), Y41A (SEQ ID NO: 290); these mutated ENV proteins having substantially no immunosuppressive properties, being highly expressed at the plasma membrane and confers to a virus expressing them a high viral titer. As mentioned above “conferring to a virus expressing them a medium or high viral titer” means that, when the sequence of the wild type ENV protein is substituted by the sequence of the mutated ENV in the lentiviral or pseudotype retrovirus, the virus thus expresses a mutated lentiviral ENV protein, along with other wild type viral proteins (GAG, PRO, POL), said mutated ENV protein conferring to the virus the ability to enter in its target cell:

    
    
        either at a level comparable or higher to the ability of the wild type virus, i.e. high ability
        or at a lower level compared to the ability of the wild type virus, i.e. medium or low ability.
    
    


The ability to enter in the target cell can be measured by the viral load. Viral load is a measure of the amount of target cells that can be infected by a given amount (1 mL) of virus (see FIG. 5 and example).
The invention also relates to a pharmaceutical composition comprising a nucleic acid molecule coding for a mutated lentiviral ENV protein, or variant of said protein, or fragments thereof, as defined above, in association with a pharmaceutically acceptable carrier.
In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said nucleic acid is comprised in a vector, said vector comprising means allowing the expression of said mutated lentiviral ENV protein, or variant of said protein, or fragments thereof.
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said nucleic acid is comprised in a vector, said nucleic acid being placed under the control of sequences that allow the expression of said mutated lentiviral ENV protein, or variant of said protein, or fragments thereof.
In another embodiment, the invention relates to a pharmaceutical composition, as defined above, in particular as a vaccine, comprising a DNA molecule coding for said mutated lentiviral ENV protein, or variant of said protein, or fragments thereof.
DNA vaccines expressing ENV proteins can be produced as described in Bellier et al., (DNA vaccines expressing retrovirus-like particles are efficient immunogens to induce neutralizing antibodies, Vaccine, 27(42):5772-80, 2009).
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, said vector being chosen among an eukaryotic or prokaryotic expression vector, in particular an eukaryotic vector which is a viral vector, in particular a pox vector, such as a fowlpox, a canarypox, or a MVA (modified vaccinia virus Ankara) vector, an adenoviral vector, a lentiviral vector, a measles vector, a Sendai virus or a CMV (cytomegalovirus) vector.
In another advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, further comprising at least one nucleotide molecule coding for a GAG and/or a PRO and/or a POL protein and/or a mutated NEF protein substantially devoid of immunosuppressive properties, of a lentivirus, preferably a lentivirus of the same origin as the mutated lentiviral ENV protein.
The advantageous mutated Nef protein contains a substitution at position 93, as described in the international application WO 2006/018289 (Inventors: Renard M., Mangeney M. and Heidmann T.) and a deletion of the N-terminus of the protein involved in its myristoylation.
GAG expression will produce virus like particles (VLPs) which are particularly advantageous for a vaccine, in particular if the ENV protein is associated with the VLP (Guerbois et al., Virology, 388:191-203, 2009).
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in the same vector as the one which also contains said at least one nucleic acid molecule coding for a GAG protein and/or a PRO protein and/or a POL protein and/or a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in the same vector as the one which also contains all said at least one nucleic acid molecule coding for a GAG protein and/or a PRO protein and/or a POL protein and/or a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in a vector which is different from the at least one vector containing said at least one nucleic acid molecule coding for a GAG protein and/or a PRO protein and/or a POL protein and/or a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, said nucleic acid molecule coding for a GAG protein, said nucleic acid molecule coding for a PRO protein, said nucleic acid molecule coding for a POL protein and said nucleic acid molecule coding for a mutated NEF protein substantially devoid of immunosuppressive properties, are all contained in vectors which are different from each other.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, comprising at least one nucleic acid molecule coding for a GAG protein and/or a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties,

    
    
        of a human or simian lentivirus, said lentivirus being preferably of the same origin as the mutated lentiviral ENV protein.
    
    


In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in the same vector as the one which also contains said at least one nucleic acid molecule coding for a GAG protein and/or a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in the same vector as the one which also contains a nucleic acid molecule coding for a GAG protein and for a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in the same vector as the one which also contains a nucleic acid molecule coding for a GAG protein and for a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties, said vector being preferably a measles vector (Guerbois et al., Virology, 388:191-203, 2009) or a canary pox vector (Poulet et al., Veterinary Record, 153(5):141-145, 2003; Vaccari et al., Expert Review of Vaccines, Vol. 9, No 9, pages 997-1005, 2010).
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, is contained in a vector which is different from the at least one vector containing said at least one nucleic acid molecule coding for a GAG protein and/or a mutated NEF protein, wherein said mutated NEF protein is substantially devoid of immunosuppressive properties.
In another particular embodiment, the invention relates to a pharmaceutical composition, as defined above, wherein said nucleic acid molecule coding for a mutated human or simian lentiviral ENV protein, or a fragment of said mutated human or simian lentiviral ENV protein, said nucleic acid molecule coding for a GAG protein and said nucleic acid molecule coding for a mutated NEF protein substantially devoid of immunosuppressive properties, are all contained in vectors which are different from each other.
The invention also relates to a pharmaceutical composition according the above definition, for its use as vaccine, for the treatment or the prevention of lentiviral infection, in particular HIV-1 infection, HIV-2 infection and SIV infection.
As mentioned above the pharmaceutical composition according to the invention encompasses a vaccine, comprising as active substance, a protein as defined above, or a nucleic acid as defined above, or a vector as defined above, or a combination thereof.
In a particular embodiment, the pharmaceutical composition according to the invention encompasses a vaccine, comprising a nucleic acid coding for a GAG protein as defined above, a nucleic acid coding for a mutated ENV protein as defined above and a nucleic acid coding for a mutated NEF protein as defined above.
In a particular embodiment, the pharmaceutical composition according to the invention encompasses a vaccine as defined above, comprising a nucleic acid coding for a GAG protein as defined above, a nucleic acid coding for a mutated ENV protein as defined above and a nucleic acid coding for a mutated NEF protein as defined above, which are contained in a same vector, said same vector being preferably a canary pox vector or a measles vector, more preferably a measles vector.
In a particular embodiment, the pharmaceutical composition according to the invention encompasses a vaccine, comprising a GAG protein as defined above, a mutated ENV protein as defined above and a mutated NEF protein as defined above.
In a particular embodiment, the pharmaceutical composition according to the invention encompasses a vaccine, comprising a GAG protein as defined above, a mutated ENV protein as defined above and a mutated NEF protein as defined above which are associated to at least one adjuvant.
A comprehensive list of adjuvants that can be used in HIV vaccines is indicated in the FRANKLIN PIERCE LAW CENTER EDUCATIONAL REPORT: PATENT LANDSCAPE OF ADJUVANT FOR HIV VACCINES which is incorporated herein by reference. This list includes:

    
    
        Aluminum-based compounds such as aluminum phosphate and aluminum hydroxide.
        Immunostimulatory adjuvants like CpG, MPL and QS21 orMF59 which is a squalene oil-in water emulsions.
        Freunds incomplete adjuvant (FIA) or Freund's complete adjuvant (FCA), can also be used.
        Calcium phosphate in particular orthophosphates, metaphosphates or pyrophosphates and occasionally hydrogen or hydroxide ions.
        Muramyl dipeptide (N-Acetyl muramyl-L-alanine-D-isoglutamine, MDP) and its synthetic analogs such as muramyl tripeptide phosphatidylethanolamine MTPPTdEtn),
        Trehalose-6,6′-dimycolate,
        Saponins (Triterpenoid glycosides) like QS-21
        Stearyl Tyrosine (octadecyl ester hydrochloride salt of tyrosine)
        Immunostimulatory adjuvants can include the following classes of compounds:
        Polysaccharides like:
        
            Chitosan:
            Inulin:
            Beta-Glucans
            Lipo-Polysaccharides or endotoxin
            MGN-3Actinidia eriantha (AEPS):
            Eldexomer:
            CpG ODN
        
        
        Liposomes like
        
            Dehydration-rehydration liposome vesicles (DRVs)
            Cytotoxic T lymphocyte (CTL)
            CAF01
            Liposomes containing lipid A (LA)
        
        
        Lipid Polysine Core Peptides (LCP)
        Cytokine like GM-CSF, IL-2, IL-12 or IL-15
        Lipid A and Monophosphoryl Lipid A (MPL)
        Lipopeptide which are molecules consisting of lipid connected to a peptide. They are derived from the lipoprotein of bacterial cell wall.
        Exogenous Immunostimulatory Adjuvants which are compounds, or proteins that are not found in the human body like:
        
            Proteosomes in particular Multiple Antigenic Peptides (MAP) or Exogenous Toxins
        
        
    
    


Suitably, the total amount mutated lentiviral ENV protein in a single dose of the immunogenic composition is 10 μg and/or the total amount of unfused polypeptide in a single dose of the immunogenic composition is 20 μg. In one embodiment, the total amount of all antigens in a single dose of the immunogenic composition is 0.5-50 μg, 2-40 μg, 5-30 μg, 10μ-20 μg or around 30 μg, around 20 μg or around 10 μg.
The amount of mutated lentiviral ENV protein in a dose of the immunogenic composition is selected as an amount which induces an immune response without significant, adverse side effects in typical recipients. Such amount will vary depending upon which specific immunogen is employed and the dosing or vaccination regimen that is selected. An optimal amount for a particular immunogenic composition can be ascertained by standard studies involving observation of relevant immune responses in subjects.
Administration of the pharmaceutical composition can take the form of one or of more than one individual dose, for example as repeat doses of the same polypeptide containing composition, or in a heterologous “prime-boost” vaccination regime, including proteins and vectors. In one embodiment, the immunogenic composition of the invention is initially administered to a subject as two or three doses, wherein the doses are separated by a period of two weeks to three months, preferably one month.
Conveniently, the composition is administered to a subject (for instance as a booster) every 6-24, or 9-18 months, for instance annually. For instance, the composition is administered to a subject (for instance as a booster) at six month or 1 year intervals. Suitably in this respect, subsequent administrations of the composition to the subject boost the immune response of earlier administrations of the composition to the same subject.
In an embodiment, the immunogenic composition of the invention is used as part of a prime-boost regimen for use in the treatment or prevention of disease or infection by HIV-1 strains from one or more clades different from the one or more HIV-1 clades in the immunogenic composition. Conveniently, the composition is the priming dose. Alternatively, the composition is the boosting dose.
Suitably, two or more priming and/or boosting doses are administered. A heterologous prime-boost regime uses administration of different forms of immunogenic composition or vaccine in the prime and the boost, each of which can itself include two or more administrations. The priming composition and the boosting composition will have at least one antigen in common, although it is not necessarily an identical form of the antigen, it can be a different form of the same antigen.
Prime boost immunisations according to the invention can be homologous prime-boost regimes or heterologous prime-boost regimes. Homologous prime-boost regimes utilize the same composition for prime and boost, for instance the immunogenic composition of the invention. Heterologous prime-boost regimes can be performed with a combination of protein and DNA-based formulations. Such a strategy is considered to be effective in inducing broad immune responses. Adjuvanted protein vaccines induce mainly antibodies and CD4+ T cell immune responses, while delivery of DNA as a plasmid or a recombinant vector induces strong CD8+ T cell responses. Thus, the combination of protein and DNA vaccination can provide for a wide variety of immune responses. This is particularly relevant in the context of HIV, since neutralizing antibodies, CD4+ T cells and CD8+ T cells are thought to be important for the immune defense against HIV-1.
The invention also relates to a pharmaceutical composition according the above definition, for its use for the treatment of lentiviral infection.
The invention also relates to a method for treating patient afflicted by pathologies related to lentiviral infection, comprising the administration to a patient in a need thereof of a pharmaceutically efficient amount of the pharmaceutical composition as defined above. The invention also relates to a method for inducing an immune response against a lentivirus that has infected an individual, said method comprising the administration to a patient in a need thereof of a pharmaceutically efficient amount of the pharmaceutical composition as defined above.
The invention also relates to a pharmaceutical composition as defined above, further comprising an antiviral agent.
The composition according to the invention can also be used in combination with the antiviral compositions listed in Table 1 below:







TABLE 1





Trade names of the different antivirals used for HIV treatment, as well as their


specificity of action.
















Intelence ® (TMC 125/etravirine) Tibotec -
Non-nucleoside reverse transcriptase inhibitor


Agenerase ® (APV/amprenavir) GSK -
Protease inhibitor


Aptivus ® (TPV/tipranavir) Boehringer -
Protease inhibitor


Crixivan ® (IDV/indinavir) MSD -
Protease inhibitor


Invirase ® (SQV/saquinavir) Roche -
Protease inhibitor


Kaletra ® (LPV.r/lopinavir + ritonavir)
Protease inhibitor


Abbott



Norvir ® (ritonavir) Abbott -
Protease inhibitor


Prezista ® (TMC 114/darunavir)
Protease inhibitor


Tibotec/Janssen-Cilag -



Reyataz ® (ATZ/atazanavir) BMS -
Protease inhibitor


Telzir ® (APV/fosamprenavir) GSK -
Protease inhibitor


Viracept ® (nelfinavir) Roche -
Protease inhibitor


Fuzeon ® (T20/enfuvirtide) Roche -
Fusion inhibitor


Celsentri ® (maraviroc) Pfizer -
Entry inhibitor


Isentress ® (MK 0518/raltegravir) Merck -
Integrase inhibitor


Rescriptor ® (delavirdine) Agouron -
Non-nucleoside reverse transcriptase inhibitor


Sustiva ® (EFV/efavirenz) BMS -
Non-nucleoside reverse transcriptase inhibitor


Viramune ® (nevirapine) Boehringer -
Non-nucleoside reverse transcriptase inhibitor


Combivir ® (Retrovir ® + Epivir-) GSK -
Nucleoside reverse transcriptase inhibitor


Emtriva ® (FTC, emtricitabine) Gilead -
Nucleoside reverse transcriptase inhibitor


Epivir ® (3TC, lamivudine) GSK -
Nucleoside reverse transcriptase inhibitor


Kivexa ® (Ziagen ® + Epivir ®) GSK - 
Nucleoside reverse transcriptase inhibitor


Retrovir ®(AZT/zidovudine) QSK -
Nucleoside reverse transcriptase inhibitor


Trizivir ® (Retrovir ® + Epivir ® + Ziagen ®)
Nucleoside reverse transcriptase inhibitor


GSK -



Videx ® (ddI/didanosine) BMS -
Nucleoside reverse transcriptase inhibitor


Viread ® (TDF/tenofovir) Gilead -
Nucleoside reverse transcriptase inhibitor


Zerit ® (d4T/stavudine) BMS -
Nucleoside reverse transcriptase inhibitor


Ziagen ® (ABC/abacavir) GSK -
Nucleoside reverse transcriptase inhibitor


Truvada ® (Emtriva ® + Viread ®) Gilead -
Nucleoside reverse transcriptase inhibitor


Atripla (Sustiva ® + Emtriva ® + Viread ®) 
Nucleoside and non-nucleoside reverse transcriptase


BMS/GILEAD
inhibitor









The invention also relates to a pharmaceutical composition as defined above, for simultaneous, separate or sequential use.
The invention relates to a pharmaceutical composition as defined above for its use for stimulating an immune response in a host organism.
The invention relates to a pharmaceutical composition as defined above for its use for inducing a specific immune response against the HIV ENV protein.
The invention relates to a pharmaceutical composition as defined above for its use for the prevention or the treatment of HIV infection, or pathologies related to AIDS.
The invention relates to a pharmaceutical composition as defined above, as a vaccine, for its use for inducing a specific immune response against the HIV ENV protein.
The invention relates to a pharmaceutical composition as defined above, as a vaccine, for its use for the prevention or the treatment of HIV infection, or pathologies related to AIDS.
In another aspect, the invention also relates to a method to obtain the active substance of a pharmaceutical composition, as defined above, consisting of modifying the immunosuppressive property of:
a wild-type human or simian lentiviral ENV protein,
or a fragment of said wild-type human or simian lentiviral ENV protein, said fragment comprising at least 40 amino acids,
said ENV protein or fragment thereof presenting a transmembrane subunit (TM) comprising an immunosuppressive domain (ISU) containing the following amino acid sequence:









(SEQ ID NO: 427)



A-[I/V]-E-[K/R]-X′a-X′b-X-D-Q,






wherein

X represents any amino acid,

X′a is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and

X′b is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y,

said method comprising a step of introduction of at least one mutation of X′a and/or X′b,

to obtain:

an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,

said mutated human or simian lentiviral ENV protein having at least 70% identity, preferably at least 80% identity, to one sequence chosen from the group consisting of SEQ ID NO: 216, SEQ ID NO: 420 and SEQ ID NO: 421,

or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,

said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:










(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein

X represents any amino acid,

and either

Xa is A, F, G, L, R or deleted, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or

Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G, R or deleted, or

Xa is A, F, G, L, R or deleted, and Xb is A, F, G, R or deleted,

said substantial absence of immunosuppressive activity of the above mentioned mutated human or simian lentiviral ENV protein or of the above defined fragment being liable to be assessed by the fact that in an in vivo assay involving engrafted tumor cells rejection,

said tumor cells being transduced either so as to express said mutated ENV protein or said fragment (mutated ENV tumor cells),

or said tumor cells being transduced so as to express said wild type ENV protein or a fragment thereof (wild type ENV tumor cells),

or said tumor cells being not transduced (normal tumor cells),

the following ratio:

immunosuppression index of said mutated ENV protein or of said fragment (imutated env)/immunosuppression index of wild type ENV protein (iwild type env) is less than 0.5,

imutated env being defined by: (maximum area reached by mutated ENV tumor cells−maximum area reached by normal tumor cells)/(maximum area reached by normal tumor cells), and

iwild type env being defined by: (maximum area reached by wild type ENV tumor cells−maximum area reached by normal tumor cells)/(maximum area reached by normal tumor cells).

The invention also relates to a method to obtain the active substance of a pharmaceutical composition, according to the above defined method, consisting of modifying the immunosuppressive property of:
a wild-type human or simian lentiviral ENV protein,
or a fragment of said wild-type human or simian lentiviral ENV protein, said fragment comprising at least 40 amino acids,
said ENV protein or fragment thereof presenting a transmembrane subunit (TM) comprising an immunosuppressive domain (ISU) containing the following amino acid sequence:









(SEQ ID NO: 1)



A-[I/V]-E-[K/R]-Y-L-X-D-Q,






wherein

X represents any amino acid,

said method comprising a step of introduction of at least one mutation of Y in position 5 and/or L in position 6,

to obtain:

an isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,

or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,

said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:










(SEQ ID NO: 416)



A-[I/VN]-E-[K/R]-Xa-Xb-X-D-Q,






wherein

X represents any amino acid,

and either

Xa is A, F, G, L, R or deleted, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or

Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G, R or deleted, or

Xa is A, F, G, L, R or deleted, and Xb is A, F, G, R or deleted.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein

X represents any amino acid,

and either

Xa is A, F, G, L or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or

Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is A, F, G or R, or

Xa is A, F, G, L or R, and Xb is A, F, G or R.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein

X represents any amino acid,

and either

Xa is A, F, G, L or R, and Xb is L, I, V, M or P, or

Xa is Y, I, H, C or T, and Xb is A, F, G or R, or

Xa is A, F, G, L or R, and Xb is A, F, G or R.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein

X represents any amino acid,

and either

Xa is A, G, or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or

Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is F, G or R, or

Xa is F or L, and Xb is F, G or R, or

Xa is A, G or R, and Xb is A.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein

X represents any amino acid,

and either

Xa is A, G, or R, and Xb is L, I, V, M or P, or

Xa is Y, I, H, C or T, and Xb is F, G or R, or

Xa is F or L, and Xb is F, G or R, or

Xa is A, G or R, and Xb is A, or

Xa is A, G or R, and Xb is F, G or R.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein,

X represents any amino acid,

and either

Xa is A, G, or R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or

Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is F, G or R.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein,

X represents any amino acid,

and either

Xa is A, G, or R, and Xb is L, I, V, M or P, or

Xa is Y, I, H, C or T, and Xb is F, G or R.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutated immunosuppressive domain (ISU) containing the following amino sequence:









(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein,

X represents any amino acid,

and either

Xa is R, and Xb is C, D, E, H, I, K, L, M, N, P, Q, S, T, V, W or Y, or

Xa is C, D, E, H, I, K, M, N, P, Q, S, T, V, W or Y, and Xb is R, or

Xa is R, and Xb is R.

The invention also relates to a method as defined above to obtain the active substance of a pharmaceutical composition,
wherein said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity,
or a fragment of said isolated mutated human or simian lentiviral ENV protein having substantially no immunosuppressive activity, said fragment comprising at least 40 amino acids,
said mutated ENV protein and fragment thereof comprising a mutation in one at least of the amino acids at positions, 29, 36 and 37 of SEQ ID NO: 426:







(SEQ ID NO: 426)


A[I/V]E[K/R]XaXbX1DQX2X3LX4X5WGC[A/S][F/G]X6X7CVX8


 


TX9VPXcX10Z1Z2Z3Z4Z5XdXe[S/T]






wherein

Xa and Xb are as defined in anyone of claims 1 to 15,

X1 to X10 represent any amino acid,

Z1 to Z5 represent no amino acid or any amino acid, independently from each other such that

    
    
        Xc is A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, Y, or deleted, preferably A, D, or N,
        Xd is A, C, D, E, F, G, H, I, L, M, N, P, Q, R, S, T, V, Y, W, or deleted, preferably A, G, S or Y,
        Xe is A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, T, V, Y, W, or deleted, preferably A, D or N.
    
    


The present invention relates to a pharmaceutical composition comprising as active substance:
a) an isolated non naturally occurring mutated human or simian lentiviral ENV having substantially no immunosuppressive activity, said mutated human or simian lentiviral ENV resulting from mutation of the transmembrane subunit (TM) of a wild type human or simian lentiviral ENV protein, the transmembrane subunit comprising an immunosuppressive domain (ISU) comprising the following amino acid sequence:









(SEQ ID NO: 1)



A-[I/V]-E-[K/R]-Y-L-X-D-Q,






said sequence encompassing

    
    
        AIEKYLXDQ (SEQ ID NO: 2), AIERYLXDQ (SEQ ID NO: 3), AVEKYLXDQ (SEQ ID NO: 4) and AVERYLXDQ (SEQ ID NO: 5), wherein X represents any natural amino acid,

wherein the amino acids at the positions chosen among

        the position 4 of SEQ ID NO: 1,
        the position 5 of SEQ ID NO: 1,
        the position 6 of SEQ ID NO: 1,
        the positions 4 and 5 of SEQ ID NO: 1,
        the position 4 and 6 of SEQ ID NO: 1,
        the position 5 and 6 of SEQ ID NO: 1, and
        the position 4, 5 and 6 of SEQ ID NO: 1,

are:

        either deleted,
        or substituted by another amino acid such that
        
            when the immunosuppressive domain comprises SEQ ID NO: 2 or 4
            
                the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, L, M, N, P, Q, R, S, T, V, W or Y, and/or
                the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,
            
            
            when the immunosuppressive domain comprises SEQ ID NO: 3 or 5,
            
                the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, L, M, N, P, Q, S, T, V, W or Y, and/or
                the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,

or

b) a fragment of said mutated human or simian lentiviral ENV, said fragment comprising at least the immunosuppressive domain (ISU) of said wild type human or simian lentiviral ENV comprising the following amino acid sequence:

            
            
        
        
    
    











(SEQ ID NO: 1)



A-[I/V]-E-[K/R]-Y-L-X-D-Q,






wherein the amino acids at the positions chosen among

    
    
        the position 4 of SEQ ID NO: 1,
        the position 5 of SEQ ID NO: 1,
        the position 6 of SEQ ID NO: 1,
        the positions 4 and 5 of SEQ ID NO: 1,
        the position 4 and 6 of SEQ ID NO: 1,
        the position 5 and 6 of SEQ ID NO: 1, and
        the position 4, 5 and 6 of SEQ ID NO: 1,

are:

        either deleted,
        or substituted by another amino acid such that
        
            when the immunosuppressive domain comprises SEQ ID NO: 2 or 4
            
                the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, L, M, N, P, Q, R, S, T, V, W or Y, and/or
                the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,
            
            
            when the immunosuppressive domain comprises SEQ ID NO: 3 or 5,
            
                the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, L, M, N, P, Q, S, T, V, W or Y, and/or
                the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,

said fragment having substantially no immunosuppressive properties,

in association of a pharmaceutically acceptable carrier.

            
            
        
        
    
    


In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein the amino acids at the positions of the group consisting of

    
    
        the position 4 of SEQ ID NO: 1,
        the position 5 of SEQ ID NO: 1,
        the position 6 of SEQ ID NO: 1,
        the positions 4 and 5 of SEQ ID NO: 1,
        the position 4 and 6 of SEQ ID NO: 1,
        the position 5 and 6 of SEQ ID NO: 1, and
        the position 4, 5 and 6 of SEQ ID NO: 1,
        
            are substituted by another amino acid such that
            
                when the immunosuppressive domain comprises SEQ ID NO: 2 or 4
                
                    the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, L, M, N, P, Q, R, S, T, V, W or Y, and/or
                    the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                    the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,
                
                
                when the immunosuppressive domain comprises SEQ ID NO: 3 or 5,
                
                    the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, L, M, N, P, Q, S, T, V, W or Y, and/or
                    the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                    the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y
                
                
            
            
        
        
    
    


Advantageously, the mutated lentiviral protein according to the invention, comprised in the above defined composition, comprises the amino acid sequence of the list consisting of SEQ ID NO: 407 to SEQ ID NO: 414.
The correspondence is the following one:









SEQ ID NO: 407



AVEAALKD



 



SEQ ID NO: 408



AVEEALKD



 



SEQ ID NO: 409



AVESALKD



 



SEQ ID NO: 410



AVETALKD



 



SEQ ID NO: 411



AIEAALKD



 



SEQ ID NO: 412



AIEEALKD



 



SEQ ID NO: 413



AIESALKD



 



SEQ ID NO: 414



AIETALKD






These proteins have been mutated at position 4 of SEQ ID NO: 1, by substitution, and the amino acid at position 5 has been substituted by A.
In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein the amino acids at the positions of the group consisting of

    
    
        the position 5 of SEQ ID NO: 1,
        the position 6 of SEQ ID NO: 1, and
        the position 5 and 6 of SEQ ID NO: 1,
        
            are substituted by another amino acid such that
            
                the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
                the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y.
            
            
        
        
    
    


In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said immunosuppressive domain (ISU) comprises the amino acid sequence of the group consisting of: SEQ ID NO: 4 or 5.
In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said immunosuppressive domain (ISU) comprises the amino acid sequence SEQ ID NO: 5, and wherein

    
    
        the amino acid residue at position 5 of SEQ ID NO: 5 is substituted by A, F, G, L or R, or
        the amino acid residue at position 6 of SEQ ID NO: 5 is substituted by A, F, G or R, or
        the amino acid residues at position 5 and 6 of SEQ ID NO: 5 are substituted by A, F, G, or R.
    
    


This is the case when said ENV protein is the ENV protein of HIV 1 virus.
The invention also relates to a pharmaceutical composition as defined above, wherein said immunosuppressive domain (ISU) comprises the amino acid sequence SEQ ID NO: 2, and wherein

    
    
        the amino acid residue at position 5 of SEQ ID NO: 2 is substituted by A, F, G, L or R, or
        the amino acid residue at position 6 of SEQ ID NO: 2 is substituted by A, F, G or R, or
        the amino acid residues at position 5 and 6 of SEQ ID NO: 2 are substituted by A, F, G, or R.
    
    


The invention also relates to a pharmaceutical composition as defined above, wherein said immunosuppressive domain (ISU) comprises the amino acid sequence SEQ ID NO: 3, and wherein

    
    
        the amino acid residue at position 5 of SEQ ID NO: 3 is substituted by A, F, G, L or R, or
        the amino acid residue at position 6 of SEQ ID NO: 3 is substituted by A, F, G or R, or
        the amino acid residues at position 5 and 6 of SEQ ID NO: 3 are substituted by A, F, G, or R.
    
    


In one advantageous embodiment, the invention relates to a pharmaceutical composition as defined above, wherein said mutated protein further comprises the wild type amino acid sequence SEQ ID NO: 270,









(SEQ ID NO: 270)



X1DQX2X3LX4X5WGC[A/S][F/G]X6X7CVX8TX9VPWX10Z1Z2Z3



 



Z4Z5[N/S][E/D/N/A][S/T]






wherein X1-X10 represents any amino acid,

wherein Z1 to Z5 represent no amino acid or any natural amino acid, independently from each other,

said mutated lentiviral protein further comprising a mutation in one at least of the amino acids at positions 23, 30 and 31 of SEQ ID NO: 270

    
    
        said mutation being:
        
            either a deletion,
            or a substitution such that
            
                the amino acid at position 25 of SEQ ID NO: 270 is substituted by A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, Y,
                the amino acid at position 32 of SEQ ID NO: 270 is substituted by A, C, D, E, F, G, H, I, K, L, M, P, Q, R, T, V, Y, W,
                the amino acid at position 33 of SEQ ID NO: 270 is substituted by C, F, G, H, I, K, L, M, P, Q, R, S, T, V, Y, W.
            
            
        
        
    
    


In one advantageous embodiment, the invention relates to a pharmaceutical composition comprising as active substance:
an isolated non naturally occurring mutated human or simian lentiviral ENV having substantially no immunosuppressive activity, said mutated human or simian lentiviral ENV resulting from mutation of a wild type human or simian lentiviral ENV protein, said wild type human or simian lentiviral ENV protein comprising the following amino acid sequence:









(SEQ ID NO: 415)



A[I/V]E[K/R]YLX1DQX2X3LX4X5WGC[A/S][F/G]X6X7CVX8



 



TX9VPWX10Z1Z2Z3Z4Z5[N/S][E/D/N/A][S/T],






wherein X1-X10 represents any amino acid,

wherein Z1 to Z5 represent no amino acid or any natural amino acid, independently from each other,

wherein the amino acids at the positions chosen among

    
    
        the position 4 of SEQ ID NO: 1,
        the position 5 of SEQ ID NO: 1,
        the position 6 of SEQ ID NO: 1,
        the positions 4 and 5 of SEQ ID NO: 1,
        the position 4 and 6 of SEQ ID NO: 1,
        the position 5 and 6 of SEQ ID NO: 1, and
        the position 4, 5 and 6 of SEQ ID NO: 1,

are:

        either deleted,
        or substituted by another amino acid such that
        
            the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, L, M, N, P, Q, S, T, V, W or Y, and/or
            the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
            the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,

and further wherein

one at least of the amino acids at positions 29, 36 and 37 of the amino acid sequence SEQ ID NO: 415 are mutated, by

        
        
        either a deletion,
        or a substitution such that
        
            the amino acid at position 29 of SEQ ID NO: 415 is substituted by A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, Y,
            the amino acid at position 36 of SEQ ID NO: 415 is substituted by A, C, D, E, F, G, H, I, K, L, M, P, Q, R, T, V, Y, W,
            the amino acid at position 37 of SEQ ID NO: 415 is substituted by C, F, G, H, I, K, L, M, P, Q, R, S, T, V, Y, W.
        
        
    
    


In another aspect, the invention relates to a pharmaceutical composition as defined above, further comprising a mutation at the position X4









(SEQ ID NO: 270)



X1DQX2X3LX4X5WGC[A/S][F/G]X6X7CVX8TX9VPWX10Z1Z2Z3



 



Z4Z5[N/S][E/D/N/A][S/T]






wherein X1-X3 and X5-X10 represents any amino acid,

    Z1 to Z5 represent no amino acid or any amino acid, independently from each other said mutation being:
    
        either a deletion,
        or a substitution by A, C, D, E, F, H, I, K, L, M, P, Q, R, S, T, V, Y or W.
    
    


In one advantageous embodiment, the invention relates to a pharmaceutical composition comprising as active substance:
an isolated non naturally occurring mutated human or simian lentiviral ENV having substantially no immunosuppressive activity, said mutated human or simian lentiviral ENV resulting from mutation of a wild type human or simian lentiviral ENV protein, said wild type human or simian lentiviral ENV protein comprising the following amino acid sequence:









(SEQ ID NO: 415)



A[I/V]E[K/R]YLX1DQX2X3LX4X5WGC[A/S][F/G]X6X7CVX8



 



TX9VPWX10Z1Z2Z3Z4Z5[N/S][E/D/N/A][S/T],






wherein X1-X10 represents any amino acid,

wherein Z1 to Z5 represent no amino acid or any natural amino acid, independently from each other,

wherein the amino acids at the positions chosen among

    
    
        the position 4 of SEQ ID NO: 1,
        the position 5 of SEQ ID NO: 1,
        the position 6 of SEQ ID NO: 1,
        the positions 4 and 5 of SEQ ID NO: 1,
        the position 4 and 6 of SEQ ID NO: 1,
        the position 5 and 6 of SEQ ID NO: 1, and
        the position 4, 5 and 6 of SEQ ID NO: 1,

are:

        either deleted,
        or substituted by another amino acid such that
        
            the amino acid residue at position 4 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, L, M, N, P, Q, S, T, V, W or Y, and/or
            the amino acid residue at position 5 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, I, L, M, N, P, Q, R, S, T, V or W, and/or
            the amino acid residue at position 6 of SEQ ID NO: 1 is substituted by A, C, D, E, F, G, H, I, K, M, N, P, Q, R, S, T, V, W or Y,

and possibly, further wherein

one at least of the amino acids at positions 29, 36 and 37 of the amino acid sequence SEQ ID NO: 415 are mutated, by

        
        
        either a deletion,
        or a substitution such that
        
            the amino acid at position 29 of SEQ ID NO: 415 is substituted by A, C, D, E, F, G, H, I, K, L, M, N, P, Q, R, S, T, V, Y,
            the amino acid at position 36 of SEQ ID NO: 415 is substituted by A, C, D, E, F, G, H, I, K, L, M, P, Q, R, T, V, Y, W,
            the amino acid at position 37 of SEQ ID NO: 415 is substituted by C, F, G, H, I, K, L, M, P, Q, R, S, T, V, Y, W,

and/or possibly further wherein the amino acid at position X4 is either deleted or substituted by A, C, D, E, F, H, I, K, L, M, P, Q, R, S, T, V, Y or W, preferably by R or H.

        
        
    
    





BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1:
Amino acid sequences of the HIV ectodomain deletants, with the indicated length, and of single mutant (substitution are underlined) ectodomains.
FIG. 2:
Functional delineation of the immunosuppressive domain of the HIV envelope. The immunosuppressive activity of 115aa-long and truncated HIV envelope ectodomains (see structures on the left) was tested using the MCA205 tumor rejection in vivo assay. Immunosuppression indexes are given as histograms on the right (mean values+/−SD).
FIG. 3:
Functional identification of the aminoacid in the HIV envelope ectodomain directly involved in immunosuppressive activity, and search for aminoacid substitutions inhibiting this activity. Immunosuppressive activity was tested in vivo as in FIG. 2.
FIG. 4:
Expression profile of mutated HIV envelopes using full-length HIVenv-expressing vectors and an anti-SU HIVenv(110H) monoclonal antibody (FACS). The data are expressed as percentages of the control HIVenv WT.
FIG. 5:
Infectivity of HIVenv-pseudotyped viral particles showing functionality of the full-length WT and of specifically mutated HIV envelopes. The results are expressed as viral titers (number of infected target cells/mL of virus supernatant).
FIG. 6:
Functional identification of the amino acid in the SIV envelope ectodomain directly involved in immunosuppressive activity, and search for aminoacid substitutions inhibiting this activity. Immunosuppressive activity was tested using the in vivo MCA205 tumor rejection assay. Immunosuppression indexes are represented as histograms (mean values+/−SD).



DETAILED DESCRIPTION OF THE INVENTION
Example
Immunosuppressive domains have been identified on the envelope proteins of oncoretroviruses, of either the gamma-(murine MLV) or the delta (e.g. human HTLV) type, as well as of some endogenous retroviruses (e.g. HERV-FRD). These domains have a highly conserved crystallographic structure, although their primary sequences are quite diverse, and an amino-acid (either Q, E, or K) at a definite position has previously been demonstrated to be essential for the immunosuppressive activity of the corresponding envelope protein. Mutation of this amino acid to an Arginine (R) was further demonstrated to result in inhibition of the immunosuppressive activity of the mutated envelope protein, with in some cases complete conservation of the other functional properties of the envelope protein, including its ability to be normally expressed at the cell membrane, to be captured by a nascent retroviral particle, and finally to confer infectivity of the mutant virus in vitro. Such mutants allowed an unambiguous demonstration of the essential role of the immunosuppressive activity for viremia in vivo, with the mutant IS-virus being unable to escape the host immune system and propagate in an immunocompetent animal [Schlecht-Louf et al., Proc Natl Acad Sci USA. 2010; 107(8):3782-7].
On the basis of the identification of an IS domain and on the ability of the IS function to be inhibited by specific mutations within the IS domain that do not disrupt the antigenic structure of the corresponding viral protein, vaccinal approaches are being developed with vaccines containing mutated <<optimized>> IS-negative viral antigens, which demonstrate an increased immunogenicity as compared to those using the native viral antigens. Search for similar IS domains and appropriate mutations in the case of non-oncogenic—but still pathogenic-retroviruses such as HIV is therefore of interest to tentatively develop improved vaccines.
Actually, in the case of the other major class of retroviruses, namely the lentiviruses (among which the human HIV1 and HIV2, and the SIV simian homologues), the crystallographic structure of the envelope protein discloses some similarities but also very important differences, especially in the domain corresponding to the IS domain of oncoretroviruses, with evidence in HIV and SIV for a severely extended helix-loop-helix domain, and no evidence for sequence similarities with the IS domain of oncoretroviruses. Furthermore, an IS domain with strong amino-acid similarities with the IS domain of oncoretroviruses was identified within an accessory protein of HIV and SIV, namely within the Nef protein. This protein is specifically produced by these complex retroviruses and is not encoded by oncoretroviruses. The Nef protein is essential for viremia in vivo, and it possesses several domains responsible for immune escape, among which the identified IS domain, thus strongly suggesting that lentiviruses had transferred the immunosuppressive activity found in oncoretroviruses within their envelope protein, to the accessory Nef protein. In agreement with this hypothesis, Nef-deleted or Nef-mutated retroviruses have a severely attenuated pathogenicity in in vivo macaque animal models. Here, the Inventors report on the identification of an IS activity carried by the HIV and SIV envelope proteins, and on specific mutations that inhibit this activity without major disrupt ion of the overall structure of the corresponding envelope proteins.
Results
Delineation of the Immunosuppressive Domain of the HIV Envelope
Delineation of the immunosuppressive domain of the HIV envelope was achieved using an in vivo tumor rejection assay, that the Inventors had previously used to demonstrate the immunosuppressive activity of the Env protein of oncoretroviruses (murine MoMLV and simian MPMV). The rationale of the assay can be summarized as follows: while injection of MCA205 tumor cells (H-2b) into allogeneic Balb/c mice (H-2d) leads to the formation of no tumor or transient tumors that are rapidly rejected, injection of the same cells, but stably expressing an immunosuppressive retroviral Env protein, leads to the growth of larger tumors that persist for a longer time—in spite of the expression of the new exogenous antigen. This difference is not associated with a difference in intrinsic cell growth rate since it is not observed in syngeneic C57BL/6 mice, and is immune system-dependent. The extent of “immunosuppression” can be quantified by an index based on tumor size: (Aenv−Anone)/Anone, where Aenv and Anone are the mean areas at the peak of growth of tumors from Balb/c mice injected with env-expressing or control cells, respectively. A positive index indicates that env expression facilitates tumor growth, as a consequence of its immunosuppressive activity; a null or negative index points to no effect or even an inhibitory effect, respectively. The latter may be explained by a stimulation of the immune response of the host against the new foreign antigen, represented by a non-immunosuppressive Env protein, expressed at the surface of tumor cells.
To first delineate a minimal immunosuppressive domain (ISD) active in vivo, the Inventors analyzed the effect of a series of truncations/deletions within the HIV env gene. Assay of the series of C-term truncations in FIGS. 1&2 identified a 49 residue-long domain with IS activity, with the 6 aa shorter HIV43 fragment and subsequent C-term truncated HIV37 and HIV30 fragments being IS-negative. HIV49 is embedded into the so-called ectodomain, which corresponds to a soluble part of the extracellular domain of the TM subunit, and consists in the a-helical domain involved in HIV TM trimerization, and the N-term part of the loop containing the 2 well-conserved, 6 aa-distant, cysteine residues found in most retroviral envelopes. Refine delineation of the amino acid responsible for IS activity was then performed by arginine-scanning between aa 36 and 51, i.e. in the domain associated with the transition from IS positive to negative Env subdomains. As illustrated in FIG. 3, all the X-to-Arg substitutions resulted in no significant change in the IS activity of HIV115, with one exception for Y41 and L42, which resulted in loss of IS activity of the mutant peptide.
Mutations at Position 41
The Inventors then checked that the Y41R substitution did not alter the overall capacity of the HIV envelope to be expressed by an eucaryotic cell and to be exported at the cell membrane, by introducing the Y41R substitution into an expression vector for the HIV envelope. A FACS analysis of cell transfected with both the wild-type and the Y41R mutant using an anti-SU specific monoclonal antibody actually demonstrated quantitative expression of the mutant envelope at the cell surface, thus indicating that the Y41R mutation does not significantly alter the HIV Env structure and SU-TM interaction (FIG. 4).
A series of distinct substitutions at the Y41 position were finally performed to tentatively identify whether other amino acids could be substituted to generate IS-negative variants: the amino acid assayed included the positively charged K and H (in addition to R), the small A and G, and the hydrophobic L and F residues. Again it was checked that these substitutions did not alter the overall structure of the HIV Env with the corresponding mutations.
Among them, substitution of Y41 by A, G, L and F resulted in loss of IS (FIG. 3), and did not alter the overall structure of the HIV Env with the corresponding mutations (FIGS. 4 and 5).
Further Mutation Outside of the ISU Domain
The effects of a set of second mutations at positions that are structurally close to Y41 position within the ENV ectodomain three-dimensional structure were also tested. Two of them (Y41R-K72A and Y41R-K78G) maintain a high level expression at cell membrane and confer infectivity (FIG. 5).
Mutations at Position 42
Interestingly, the adjacent position to the position Y41, position L42, also resulted in loss of IS activity of the mutant peptide when the mutation L42R is introduced. This mutation maintains a high level expression at cell membrane of the mutated HIV ENV protein (FIG. 4).
Mutations within the SIV ENV Protein
Interestingly, mutation at the homologous position in SIV ENV (L42) of the position L42 in HIV-1 ENV ectodomain also resulted in specific loss of IS activities (FIG. 6).
Accordingly, the present investigation has clearly identified a definite location and a definite substitution(s) within the HIV env resulting in the loss of its IS activity. Being compatible with the conservation of the overall structure of the human and simian lentiviral Env proteins, these substitutions should be introduced in all pharmaceutical preparations which include the Env protein as a vaccine antigen.
Materials and Methods
Mice and Cell Lines:
C57Bl/6 and Balb/c mice, 6-10 weeks old, were obtained from CER Janvier (Laval, France). Mice were maintained in the animal facility of the Gustave Roussy Institute in accordance with institutional regulations. 293T (ATCC CRL11268), and MCA205 cells were cultured in DMEM supplemented with 10% fetal calf serum (Invitrogen), streptomycin (100 μg/ml) and penicillin (100 units/ml).
Plasmid Construction:
The PCEL/E160 encoding the envelope protein of the BRU/LAI HIV-1 isolate is a gift from Dr Marc Sitbon. To generate the pDFG plasmids encoding the various fragments of HIV-1 envelope ectodomain, PCR fragments generated using PCEL/E160 as a template and primer pairs 1-2 (pDFG-HIV115), 1-3 (pDFG-HIV81), 1-4 (pDFG-HIV67), 1-5 (pDFG-HIV55), 1-6 (pDFG-HIV49), 1-7 (pDFG-HIV43), 1-8 (pDFG-HIV37), 1-9 (pDFG-HIV30) were digested with SfiI and MluI and inserted into pDFG-ectoSyncytin-1 (Mangeney et al, 2007) opened with the same enzymes.
Mutated pDFG-HIV115 were obtained by successive PCR using appropriate primers. A first series of PCR was performed with pDFG HIV115 as template using primers 1-11 and 10-2, 1-13 and 12-2, 1-15 and 14-2 or 1-17 and 16-2 to introduce the E39R, Y41R, K43R or D44R mutations respectively, and primers 1-18 and 19-2, 1-20 and 21-2, 1-22 and 23-2, 1-24 and 25-2, 1-26 and 27-2, 1-28 and 29-2, 1-30 and 31-2, 1-32 and 33-2, 1-34 and 35-2, or 1-36 and 37-2 to introduce the L36R, A37R, V38R, L42R, Q45R, Q46R, L47R, L48R, G49R, or 150R mutations respectively. The PCR products were then used as templates in subsequent PCR using primers 1-2. These PCR fragments were digested with SfiI and MluI and inserted into pDFG-ectoSyncytin-1 (Mangeney et al, 2007) opened with the same enzymes.
All the constructions were sequenced before use.







TABLE 1







Primer list










No
Name
Primer sequence (5′-3′)
SEQ ID













1
TMHIV Sfi-Sens
ACATggcccagccggccTCTGGTATAGTGCAGCAGC
SEQ ID NO: 295


 


2
TMHIV115 Mlu-AS
GTATacgcgtTTATAATTCTTGTTCATTCTTTTC
SEQ ID NO: 296


 


3
TMHIV81 Mlu AS
GTATacgcgtTTACATGTTATTCCAAATCTGTTCC
SEQ ID NO: 297


 


4
TMHIV67 Mlu AS
GTATacgcgtTTAAGCATTCCAAGGCACAGC
SEQ ID NO: 298


 


5
TMHIV55 Mlu AS
GTATacgcgtTTATCCAGAGCAACCCCAAATCC
SEQ ID NO: 299


 


6
TMHIV49 Mlu AS
GTATacgcgtTTACCCCAGGAGCTGTTGATCC
SEQ ID NO: 300


 


7
TMHIV43 Mlu AS
GTATacgcgtTTACTTTAGGTATCTTTCCACAGC
SEQ ID NO: 301


 


8
TMHIV37 Mlu AS
GTATacgcgtTTAAGCCAGGATTCTTGCCTGGAG
SEQ ID NO: 302


 


9
TMHIV30 Mlu AS
GTATacgcgtTTACTGCTTGATGCCCCAGAC
SEQ ID NO: 303


 


18
TMHIV115 L36R as
CTTTCCACAGCCcGGATTCTTGCCTG
SEQ ID NO: 304


 


19
TMHIV115 L36R s
CAGGCAAGAATCCgGGCTGTGGAAAG
SEQ ID NO: 305


 


20
TMHIV115 A37R as
GTATCTTTCCACAcgCAGGATTCTTGCC
SEQ ID NO: 306


 


21
TMHIV115 A37R s
GGCAAGAATCCTGcgTGTGGAAAGATAC
SEQ ID NO: 307


 


22
TMHIV115 V38R as
CTTTAGGTATCTTTCCctAGCCAGGATTCTTGCC
SEQ ID NO: 308


 


23
TMHIV115 V38R s
GGCAAGAATCCTGGCTagGGAAAGATACCTAAAG
SEQ ID NO: 309


 


11
TMHIV115 E39R AS
CCTTTAGGTATCTTctCACAGCCAGGATTC
SEQ ID NO: 310


 


10
TMHIV115 E39R S
GAATCCTGGCTGTGagAAGATACCTAAAGG
SEQ ID NO: 311


 


13
TMHIV115 Y41R AS
GTTGATCCTTTAGGcgTCTTTCCACAGCCAG
SEQ ID NO: 312


 


12
TMHIV115 Y41R S
CTGGCTGTGGAAAGAcgCCTAAAGGATCAAC
SEQ ID NO: 313


 


24
TMHIV115 L42R as
GGAGCTGTTGATCCTTTcGGTATCTTTCCACAGCC
SEQ ID NO: 314


 


25
TMHIV115 L42R s
GGCTGTGGAAAGATACCgAAAGGATCAACAGCTCC
SEQ ID NO: 315


 


15
TMHIV115 K43R AS
GAGCTGTTGATCCcTTAGGTATCTTTCCAC
SEQ ID NO: 316


 


14
TMHIV115 K43R S
GTGGAAAGATACCTAAgGGATCAACAGCTC
SEQ ID NO: 317


 


17
TMHIV115 D44R AS
AGGAGCTGTTGAcgCTTTAGGTATCTTT
SEQ ID NO: 318


 


16
TMHIV115 D44R S
AAAGATACCTAAAGcgTCAACAGCTCCT
SEQ ID NO: 319


 


26
TMHIV115 Q45R as
CCCAGGAGCTGTcGATCCTTTAGGTATC
SEQ ID NO: 320


 


27
TMHIV115 Q45R s
GATACCTAAAGGATCgACAGCTCCTGGG
SEQ ID NO: 321


 


28
TMHIV115 Q46R as
CAAATCCCCAGGAGCcGTTGATCCTTTAG
SEQ ID NO: 322


 


29
TMHIV115 Q46R s
CTAAAGGATCAACgGCTCCTGGGGATTTG
SEQ ID NO: 323


 


30
TMHIV115 L47R as
CAAATCCCCAGGcGCTGTTGATCCTTTAG
SEQ ID NO: 324


 


31
TMHIV115 L47R s
CTAAAGGATCAACAGCgCCTGGGGATTTG
SEQ ID NO: 325


 


32
TMHIV115 L48R as
CCCAAATCCCCcGGAGCTGTTG
SEQ ID NO: 326


 


33
TMHIV115 L48R s
CAACAGCTCCgGGGGATTTGGG
SEQ ID NO: 327


 


34
TMHIV115 G49R as
CCCCAAATCCgCAGGAGCTGTTG
SEQ ID NO: 328


 


35
TMHIV115 G49R s
CAACAGCTCCTGcGGATTTGGGG
SEQ ID NO: 329


 


36
TMHIV115 150R as
GCAACCCCAtcTCCCCAGGAGCTG
SEQ ID NO: 330


 


37
TMHIV115 150R s
CAGCTCCTGGGGAgaTGGGGTTGC
SEQ ID NO: 331


 


38
TMHIV115 W51R as
GCAACCCCAtcTCCCCAGGAGCTG
SEQ ID NO: 332


 


39
TMHIV115 W51R s
CAGCTCCTGGGGAgaTGGGGTTGC
SEQ ID NO: 333









HIV115 Y41 Mutant Construction:

To explore the amino acid sequence necessary for the loss of immunosuppression, HIV115 Y41 mutants were produced by PCR using the pDFG HIV115 WT plasmid as template and pairs of primers 1-42 and 43-2, 1-44 and 45-2, 1-46 and 47-2, 1-48 and 49-2, 1-50 and 51-2, or 1-52 and 53-2, to introduce the Y41K, Y41H, Y41A, Y41G, Y41F, or Y41L mutations respectively. The PCR products were then used as templates in subsequent PCR using primers 1-2. These PCR fragments were digested with SfiI and MluI and inserted into pDFG-ectoSyncytin-1 (Mangeney et al, 2007) opened with the same enzymes
All the constructions were sequenced before use.













No
Name
Primer sequence (5′-3′)
SEQ ID NO







42
TMHIV115 Y41K as
GTTGATCCTTTAGtTtTCTTTCCACAGCCAG
SEQ ID NO: 334


 


43
TMHIV115 Y41K s
CTGGCTGTGGAAAGAaAaCTAAAGGATCAAC
SEQ ID NO: 335


 


44
TMHIV115 Y41H as
GTTGATCCTTTAGGTgTCTTTCCACAGCCAG
SEQ ID NO: 336


 


45
TMHIV115 Y41H s
CTGGCTGTGGAAAGAcACCTAAAGGATCAAC
SEQ ID NO: 337


 


46
TMHIV115 Y41A as
GTTGATCCTTTAGGgcTCTTTCCACAGCCAG
SEQ ID NO: 338


 


47
TMHIV115 Y41A s
CTGGCTGTGGAAAGAgcCCTAAAGGATCAAC
SEQ ID NO: 339


 


48
TMHIV115 Y41G as
GTTGATCCTTTAGGccTCTTTCCACAGCCAG
SEQ ID NO: 340


 


49
TMHIV115 Y41G s
CTGGCTGTGGAAAGAggCCTAAAGGATCAAC
SEQ ID NO: 341


 


50
TMHIV115 Y41F as
GTTGATCCTTTAGGaATCTTTCCACAGCCAG
SEQ ID NO: 342


 


51
TMHIV115 Y41F s
CTGGCTGTGGAAAGATtCCTAAAGGATCAAC
SEQ ID NO: 343


 


52
TMHIV115 Y41L as
GTTGATCCTTTAGGagTCTTTCCACAGCCAG
SEQ ID NO: 344


 


53
TMHIV115 Y41L s
CTGGCTGTGGAAAGActCCTAAAGGATCAAC
SEQ ID NO: 345









HIV115 Y41 Double Mutants Construction:

HIV115 Y41R K72A, G or S double mutants were produced by PCR using the pDFG HIV115 Y41R plasmid as template and pairs of primers 1-94 and 93-2, 1-96 and 95-2, or 1-98 and 97-2. The PCR products were then used as templates in subsequent PCR using primers 1-2. These PCR fragments were digested with SfiI and MluI and inserted into pDFG-ectoSyncytin-1 (Mangeney et al, 2007) opened with the same enzymes. HIV115 R40X Y41R double-mutants were produced by PCR using the pDFG HIV115 Y41R as template and pairs of primers 1-54 and 55-2, 1-56 and 57-2 to introduce the R40A and R40E mutations respectively. HIV115 R40X Y41A double-mutants were produced by PCR using the pDFG HIV115 Y41A as template and pairs of primers 1-58 and 59-2, 1-60 and 61-2, 1-62 and 63-2, 1-64 and 65-2 to introduce the R40A, R40E, R40S, R40T mutations respectively. HIV115 R40X simple mutants were also generated using pDFG HIV115 WT as template and pairs of primers 1-66 and 67-2, 1-68 and 69-2, 1-70 and 71-2, 1-72 and 73-2.
The PCR products were then used as templates in subsequent PCR using primers 1-2. These PCR fragments were digested with SfiI and MluI and inserted into pDFG-ectoSyncytin-1 (Mangeney et al, 2007) opened with the same enzyme.













No
Name
Primer sequence (5′-3′)
SEQ ID







54
TM
CTGGCTGTGGAAgcAcgCCTAAAGGATCAAC
SEQ ID



HIV115R40AY41R-

NO: 378



S




 


55
TM
GTTGATCCTTTAGGcgTgcTTCCACAGCCAG
SEQ ID



HIV115R40AY41R-

NO: 379



AS




 


56
TM
CTGGCTGTGGAAgaAcgCCTAAAGGATCAAC
SEQ ID



HIV115R40EY41R-

NO: 380



S




 


57
TM
GTTGATCCTTTAGGcgTtcTTCCACAGCCAG
SEQ ID



HIV115R40EY41R-

NO: 381



AS




 


58
TM
CTGGCTGTGGAAgctgcCCTAAAGGATCAAC
SEQ ID



HIV115R40AY41A-

NO: 382



S




 


59
TM
GTTGATCCTTTAGGgcagcTTCCACAGCCAG
SEQ ID



HIV115R40AY41A-

NO: 383



AS




 


60
TM
CTGGCTGTGGAAgaagcCCTAAAGGATCAAC
SEQ ID



HIV115R40EY41A-

NO: 384



S




 


61
TM
GTTGATCCTTTAGGgcttcTTCCACAGCCAG
SEQ ID



HIV115R40EY41A-

NO: 385



AS




 


62
TM
CTGGCTGTGGAAagcgcCCTAAAGGATCAAC
SEQ ID



HIV115R40SY41A-

NO: 386



S




 


63
TM
GTTGATCCTTTAGGgcgctTTCCACAGCCAG
SEQ ID



HIV115R40SY41A-

NO: 387



AS




 


64
TM
CTGGCTGTGGAAacagcCCTAAAGGATCAAC
SEQ ID



HIV115R40TY41A-

NO: 388



S




 


65
TM
GTTGATCCTTTAGGgctgtTTCCACAGCCAG
SEQ ID



HIV115R40TY41A-

NO: 389



AS




 


66
TM
CTGGCTGTGGAAgctTACCTAAAGGATCAAC
SEQ ID



HIV115R40A-S

NO: 390


 


67
TM
GTTGATCCTTTAGGTAagcTTCCACAGCCAG
SEQ ID



HIV115R40A-AS

NO: 391


 


68
TM
CTGGCTGTGGAAgaaTACCTAAAGGATCAAC
SEQ ID



HIV115R40E-S

NO: 392


 


69
TM
GTTGATCCTTTAGGTAttcTTCCACAGCCAG
SEQ ID



HIV115R40E-AS

NO: 393


 


70
TM
CTGGCTGTGGAAagcTACCTAAAGGATCAAC
SEQ ID



HIV115R40S-S

NO: 394


 


71
TM
GTTGATCCTTTAGGTAgctTTCCACAGCCAG
SEQ ID



HIV115R40S-AS

NO: 395


 


72
TM
CTGGCTGTGGAAacaTACCTAAAGGATCAAC
SEQ ID



HIV115R40T-S

NO: 396


 


73
TM
GTTGATCCTTTAGGTAtgtTTCCACAGCCAG
SEQ ID



HIV115R40T-AS

NO: 397


 


93
TMHIV115K72A
GCTAGTTGGAGTAATgcATCTCTGGAACAGATTTGG
SEQ ID



s

NO: 398


 


94
TMHIV115K72A
CCAAATCTGTTCCAGAGATgcATTACTCCAACTAGC
SEQ ID



as

NO: 399


 


95
TMHIV115K72G
GCTAGTTGGAGTAATggATCTCTGGAACAGATTTGG
SEQ ID



s

NO: 400


 


96
TMHIV115K72G
CCAAATCTGTTCCAGAGATccATTACTCCAACTAGC
SEQ ID



as

NO: 401


 


97
TMHIV115K72S
GCTAGTTGGAGTAATtcATCTCTGGAACAGATTTGG
SEQ ID



s

NO: 402


 


98
TMHIV115K72S
CCAAATCTGTTCCAGAGATgaATTACTCCAACTAGC
SEQ ID



as

NO: 403









Introduction of HIV115 Mutations into an HIV Env Expression Vector:

To introduce these HIV envelope mutations into the HIVenv pTr712 expression vector (Schnierle et al PNAS 1997), a silent mutation was first generated to create an SfiI insertion site. PCR fragments were generated using pTr712as a template and primer pairs 38-39 and 40-41. The PCR products were then used as templates in subsequent PCR using primers 38-41.
The resulting PCR fragment was then digested with BsaBI and HindIII and inserted into the pTr712 plasmid opened with the same enzymes resulting in the pTr712-Sfi plasmid. PCR fragments of each HIV115 mutation were then generated by using primers 40-41 and the pDFG HIV115 mutant plasmids as templates, digestion with SfiI and HindIII and then insertion into the pTr712-Sfi plasmid opened with the same enzymes.
All the constructions were sequenced before use.













No
Name
Primer sequence (5′-3′)
SEQ ID NO







38
HIV BH10 BsaBI s
acaaattagatgttcatcaaatattacaggg
SEQ ID NO: 346


 


39
HIV BH10 SfiI mutsil as
GCAACAGATGCTGTTGgGCCTCA
SEQ ID NO: 347




ATgGCCCTCAGCAAATTGTTC



 


40
HIV BH10 SfiI mutsil s
GAACAATTTGCTGAGGGCcATTG
SEQ ID NO: 348




AGGCcCAACAGCATCTGTTGC



 


41
HIV BH10 HindIII as
gtgtattaagcttgtgtaattgttaatttctc
SEQ ID NO: 349


 


74
EnvHIVTr712-Xho-
NNNNNCTCGAGACCGGTccaactaga
SEQ ID NO: 404



Age-Kozak-S
accATGAGAGTGAAGGAGAAATA





TCAGC



 


75
EnvHIVTr712-Mlu-AS
NNNNNACGCGTTCAATATCCCTG
SEQ ID NO: 405




CCTAACTC



 


76
EnvHIVWT-Mlu-AS
NNNNNACGCGTTTATAGCAAAAT
SEQ ID NO: 406




CCTTTCCAAGC









Establishment of Env-Expressing Tumor Cells and MCA205 Tumor-Rejection Assay:

7.5×105 293 T cells were cotransfected with the env-expressing pDFG retroviral vector to be tested (1.75 μg) and expression vectors for the MLV proteins (0.55 μg for the amphotropic MLV env vector and 1.75 μg for the MLV gag and pol vector). 36 hours post-transfection, supernatants were harvested for infection of MCA205 tumor cells (2.5 ml of supernatant per 5×105 cells with 8 μg/ml polybrene). Cells were maintained in selective medium (400 units/ml hygromycin) for 3 weeks, and then washed with PBS, trypsinized and inoculated subcutaneously in the shaved area of each mouse right flank as in Mangeney et al (1998, 2007). Tumor growth was monitored by palpation twice or thrice weekly and tumor area (mm2) determined by measuring perpendicular tumor diameters. The extent of “immunosuppression” was quantified by an index based on tumor size: (Aenv−Anone)/Anone, where Aenv and Anone are the mean areas at the peak of growth of tumors from Balb/c mice injected with env-expressing or control cells, respectively.
Analysis of HIVenv Expression:
293T cells were transfected with 4 mg of the expression vector for the HIV-1 envelope (pTr712) either wild-type or mutated at the indicated positions, by Calcium Phosphate precipitation. Cells are washed 16 h later and then harvested 2 days post-transfection using PBS-EDTA 5 mM. The 110-H monoclonal antibody (anti-V3 loop, gift from Hybridolab, Pasteur Institute) was used ( 1/200 dilution) to stain the HIV envelope. As a secondary antibody, the Inventors used the goat anti mouse IgG Alexa 488 ( 1/400) (Invitrogen). For intracellular HIVenv staining, 293T cells were fixed with a formaldehyde buffer and then permeabilized (BD cyto fix/cytoperm, BD Biosciences). The isotype mouse anti IgG1Kappa (BD Biosciences) was used to control non-specific staining Fluorescence was acquired by flow cytometry using a FACS Calibur (BD Biosciences), and data analysed by the CellQuest software (BD Biosciences).
Mutated Env Pseudotyping and Measure of Viral Titer:
293T cells are triple transfected with 3 mg of a reporter MLV vector carrying GFP (CNCG), 1.75 mg Mo-MLV gag-pol vector and 0.55 mg phCMV vector encoding HIV-1 envelope wt or mutated at the indicated positions. The infectivity of Mo-MLV virions pseudotyped with HIV-1 Env, harvested 48 hours post-transfection, is measured using U87 cells (CD4+, CXCR4+) as target cells. The infectivity of the envelopes is analysed after 72 h exposure diluted 0.45 mm-filtered supernatant in presence of 4 mg/mL polybrene. The fluorescence (GFP) is acquired by flow cytometry using a FACS Calibur (BD Biosciences). The results are analysed by the CellQuest software (BD Biosciences). The resulting titers (number of infected cells/mL) are calculated as the following: (% GFP+ cells (infected) x plated cell number)/volume of supernatant×1000.
Env SIV Mutants Construction:
PCR fragments were generated using p239 SPE3′ (the plasmid encoding the SIV half virus containing the envelope protein) as a template and primer pairs 77-79 and 78-80, 77-81 and 78-82, 77-83 and 78-84, 77-85 and 78-86, 77-87 and 78-88, 77-89 and 78-90 to introduce the E39R, K40R, Y41R, L42R, K43R, D44R mutations respectively. The PCR products were the used as templates in subsequent PCR using primers 77-78. The resulting PCR fragment was then digested with BmgBI and NheI and inserted into the p239 SPE3′ plasmid opened with the same enzymes. All the constructions were sequenced before use.
Introduction of SIV Mutants Ectodomain into pDFG:
To generate the pDFG plasmids encoding the fragment of SIV envelope ectodomain-55, PCR fragments generated using p239 SPE3′ WT and mutants as a template and primer pairs 91-92, were digested with SfiI and MluI and inserted into pDFG opened with the same enzymes.









77 Env SIV S



SEQ ID NO: 350



ccgctcagtcccgaactttattggc



 



78 Env SIV AS



SEQ ID NO: 351



ggtggggaagagaacactggcc



 



79 SIV env E39R s



SEQ ID NO: 352



cagactagggtcactgccatcCGCaagtacttaaaggaccaggcg



 



80 SIV env E39R as



SEQ ID NO: 353



cgcctggtcctttaagtacttGCGgatggcagtgaccctagtctg



 



81 SIV env K40R s



SEQ ID NO: 354



actagggtcactgccatcgagCGCtacttaaaggaccaggcgcag



 



82 SIV env K40R as



SEQ ID NO: 355



ctgcgcctggtcctttaagtaGCGctcgatggcagtgaccctagt



 



83 SIV env Y41R s



SEQ ID NO: 356



GCCATCGAGAAGcgCTTAAAGGACCAGGCG



 



84 SIV env Y41R as



SEQ ID NO: 357



CGCCTGGTCCTTTAAGcgCTTCTCGATGGC



 



85 SIV env L42R s



SEQ ID NO: 358



gtcactgccatcgagaagtacCGCaaggaccaggcgcagctg



 



86 SIV env L42R as



SEQ ID NO: 359



cagctgcgcctggtccttGCGgtacttctcgatggcagtgac



 



87 SIV env K43R s



SEQ ID NO: 360



gccatcgagaagtacttaCGCgaccaggcgcagctgaatgcttgg 



 



88 SIV env K43R as



SEQ ID NO: 361



ccaagcattcagctgcgcctggtcGCGtaagtacttctcgatggc



 



89 SIV env D44R s



SEQ ID NO: 362



gagaagtacttaaagCGCcaggcgcagctgaatgcttgg



 



90 SIV env D44R as



SEQ ID NO: 363



attcagctgcgcctgGCGctttaagtacttctcgatggc



 



91 TMSIV55 Sfi S



SEQ ID NO: 364



ACATggcccagccggccgctgggatagtgcagcaac



 



92 TMSIV55 Mlu AS



SEQ ID NO: 365



GTATacgcgtTTAaaacgcacatccccaagcattc






Comparative Example: Test of the In Vivo Effect of the Mutation G49R, which Corresponds to the Mutation “G19R” in the International Application WO 2010/022,740
WO 2010/022,740 discloses a consensus sequence of 50 amino acid of the HIV ENV protein. In this sequence, it is suggested that substitution of amino acids in positions 10, 19, 24, 34 and 40 affect the immunosuppressive properties of the HIV ENV protein.
These mutations are a transposition in lentivirus of the teaching of WO 2005/095,442 limited to endogenous or onco retroviruses. The authors of WO 2005/095,442 are also the authors of the present application and they early observed that such a transposition is not effective.
Despite the fact that any amino acids can be assigned to the positions 10, 19, 24, 34 or 40 in the consensus sequence of WO 2010/022,740, only one substitution (one residue for one position) was tested by ex vivo experiments in WO 2010/022,740. It is the mutation “G19R”, which corresponds to the mutation G49R in the present FIGS. 1 and 3.
Because the immune response of an individual involves different organs and different cellular and non-cellular components, ex vivo results have no predictive value concerning the in vivo immunosuppressive properties of a viral protein.
To determine if the mutations previously disclosed in WO 2010/022,740 are suitable for a medical use, the mutation G49R has been tested using the MCA205 tumor rejection in vivo assay, as defined in the section “Establishment of env-expressing tumor cells and MCA205 tumor-rejection assay” of the Example.
As shown in FIG. 3, the peptide G49R remains almost as immunosuppressive in vivo as the wild type HIV 115 peptide, with an immunosuppression index which is higher than 0.5. Thus, the mutation G49R does not induce a significant decrease of the in vivo immunosuppressive properties of the HIV ENV protein, with a ratio of immunosuppression index of G49R mutated ENV HIV 115 peptide (imutated env)/immunosuppression index of wild type ENV HIV 115 peptide (iwild type env), which is 0.7 (i.e. higher than 0.5).
This result demonstrates the insufficiently described teaching of WO 2010/022740 since the only one mutation tested in WO 2010/022,740, using an ex vivo test, does not significantly affect the in vivo immunosuppressive properties of the HIV ENV protein.
As a consequence, WO 2010/022,740 raises the same technical problem as the present invention but does not offer a technical solution.

## Claims

1. A pharmaceutical composition comprising as an active substance:
a) an isolated mutated human or simian lentiviral ENV protein having no or a reduced immunosuppressive activity as compared to a corresponding wild type non-mutated human or simian lentiviral ENV protein,
said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of the corresponding wild type non-mutated human or simian lentiviral ENV protein,
said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein,
X represents any amino acid,

and either
Xa is A, F, G, L or R, and Xb is any amino acid,
Xa is any amino acid, and Xb is A, F, G or R, or
Xa is A, F, G, L or R, and Xb is A, F, G or R,

or
b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having no or a reduced immunosuppressive activity as compared to the corresponding wild type non-mutated human or simian lentiviral ENV protein,
said fragment comprising at least 40 amino acids,
said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein,
X represents any amino acid,

and either
Xa is A, F, G, L or R, and Xb is any amino acid,
Xa is any amino acid, and Xb is A, F, G or R, or
Xa is A, F, G, L or R, and Xb is A, F, G or R,
in association with a pharmaceutically acceptable carrier,
said no or reduction of immunosuppressive activity of the above mentioned mutated human or simian lentiviral ENV protein or of the above defined fragment being liable to be assessed by the fact that in an in vivo assay involving engrafted tumor cells rejection,
said tumor cells being transduced either so as to express said mutated ENV protein or said fragment (mutated ENV tumor cells),
or said tumor cells being transduced so as to express the corresponding wild type non-mutated ENV protein or a fragment thereof (wild type ENV tumor cells),
or said tumor cells being not transduced (normal tumor cells),
the following ratio:
immunosuppression index of said mutated ENV protein or of said fragment (imutated env)/immunosuppression index of wild type ENV protein (iwild type env) is less than 0.5,
imutated env being defined by: (maximum area reached by mutated ENV tumor cells−maximum area reached by normal tumor cells)/(maximum area reached by normal tumor cells), and
iwild type env being defined by: (maximum area reached by wild type ENV tumor cells−maximum area reached by normal tumor cells)/(maximum area reached by normal tumor cells).

2. The pharmaceutical composition according to claim 1, comprising as an active substance:
a) an isolated mutated human or simian lentiviral ENV protein having no or a reduced immunosuppressive activity as compared to a corresponding wild type non-mutated human or simian lentiviral ENV protein,
said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of the corresponding wild type non-mutated human or simian lentiviral ENV protein,
said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein
X represents any amino acid,

and either
Xa is A, F, G, L or R, and Xb is L, I, V, M or P, or
Xa is Y, I, H, C or T, and Xb is A, F, G or R, or
Xa is A, F, G, L or R, and Xb is A, F, G or R,

or
b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having no or a reduced immunosuppressive activity as compared to a corresponding wild type non-mutated human or simian lentiviral ENV protein,
said fragment comprising at least 40 amino acids,
said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein
X represents any amino acid,

and either
Xa is A, F, G, L or R, and Xb is L, I, V, M or P, or
Xa is Y, I, H, C or T, and Xb is A, F, G or R, or
Xa is A, F, G, L or R, and Xb is A, F, G or R,
in association with a pharmaceutically acceptable carrier.

3. The pharmaceutical composition according to claim 1, comprising as an active substance:
a) an isolated mutated human or simian lentiviral ENV protein having no or a reduced immunosuppressive activity as compared to a corresponding wild type non-mutated human or simian lentiviral ENV protein,
said mutated human or simian lentiviral ENV protein resulting from mutation of the transmembrane (TM) subunit of the corresponding wild type non-mutated human or simian lentiviral ENV protein,
said mutated human or simian lentiviral ENV protein comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein
X represents any amino acid,

and either
Xa is A, F, G, L or R, and Xb is L, or
Xa is Y, and Xb is A, F, G or R,

or
b) at least one fragment of said isolated mutated human or simian lentiviral ENV protein having no or a reduced immunosuppressive activity as compared to a corresponding wild type non-mutated human or simian lentiviral ENV protein,
said fragment comprising at least 40 amino acids,
said fragment comprising a mutated immunosuppressive domain (ISU) containing the following amino acid sequence:











(SEQ ID NO: 416)



A-[I/V]-E-[K/R]-Xa-Xb-X-D-Q,






wherein
X represents any amino acid,

and either
Xa is A, F, G, L or R, and Xb is L, or
Xa is Y, and Xb is A, F, G or R,
in association with a pharmaceutically acceptable carrier.

4. The pharmaceutical composition according to claim 1, wherein said isolated mutated human or simian lentiviral ENV protein or said fragment of said isolated mutated human or simian lentiviral ENV protein comprises one of the following amino acid sequences:









(SEQ ID NO: 422)



A-I-E-K-Xa-Xb-X-DQ,



 



(SEQ ID NO: 423)



A-I-E-R-Xa-Xb-X-DQ,



 



(SEQ ID NO: 424)



A-V-E-K-Xa-Xb-X-DQ,



 



(SEQ ID NO: 425)



A-V-E-R-Xa-Xb-X-DQ.

5. The pharmaceutical composition according to claim 1, wherein said isolated mutated human or simian lentiviral ENV protein, or said fragment of said isolated mutated human or simian lentiviral ENV protein, comprises one of the amino acid sequences selected from the group consisting of: SEQ ID NO: 13, SEQ ID NO: 42, SEQ ID NO: 71, SEQ ID NO: 9 to 12, SEQ ID NO: 14 to 41, SEQ ID NO: 43 to 70, and SEQ ID NO: 72 to 269.

6. The pharmaceutical composition according to claim 1, in a formulation for its use for inhibiting lentiviral infection.

7. The pharmaceutical composition according to claim 1, wherein said isolated mutated human or simian lentiviral ENV protein, or said fragment of said isolated mutated human or simian lentiviral ENV protein, comprises one of the amino acid sequences selected from the group consisting of SEQ ID NO: 96-211.

8. The pharmaceutical composition according to claim 1, wherein said isolated mutated human or simian lentiviral ENV protein, or said fragment of said isolated mutated human or simian lentiviral ENV protein, comprises one of the amino acid sequences selected from the group consisting of SEQ ID NO: 212-269.

9. The pharmaceutical composition according to claim 6, wherein the lentiviral infection is HIV-1 infection, HIV-2 infection or SIV infection.

10. The pharmaceutical composition according to claim 6, wherein the formulation is capable of inducing an anti-lentiviral immune response against HIV-1 infection, HIV-2 infection or SIV infection.