Parmi ces peptides, on peut citer, en particulier - ceux exprimés par le fragment de gène C2V3env, conforme à l'invention * SEQ ID N026 (BCF02 (ESS)) VVTCTHGIKPTVSTQLILNGTLSEGKIRMMAKNISD S G Q N I I V T L N T T I N M T C Q R P G H Q T V Q E I R I G P M A W Y S M G L A N G N G S E S R R A Y C E Y N T T N W I Val Val Thr Cys Thr His Gly Ile Lys Pro Thr Val Ser Thr Gln Leu 1 5 10 15 Be Leu Asn Gly Thr Leu Ser Glu Gly Lys Be Arg Met Met Ala Lys 20 25 30 Asn Be Ser Asp Ser Gly Gin Asn Ile Ile Val Thr Leu Asn Thr Thr 35 40 45 Ile Asn Met Thr Cys Gln Arg Pro Gly His Gln Thr Val Gln Glu Ile 50 55 60 Arg Be Gly Pro Met Ala Trp Tyr Ser Met Gly Leu Ala Asn Gly Asn 65 70 75 80 Gly Ser Glu Ser Arg Arg Ala Tyr Cys Glu Tyr Asn Thr Thr Asn Trp 85 90 95 ne * SEQ ID N027 (BCFO1 (FAN)) VVTCTHGIKPTVSTQLILN GTLSEKGIRIMGKNISK TGENIIVTLNVSINITCHRPGNLSVQEMKIGPLSWY SMGLAANSSIKSRVAYCNYSTTEWT Val Val Thr Cys Thr His Gly Ile Lys Pro Thr Val Ser Thr Gln Leu 5 5 10 15 Ile Leu Asn Gly Thr Leu Ser Glu Lys Gly Ile Arg Ile Met Gly Lys 20 25 30 Asn Ile Ser Lys Thr Gly Glu Asn Be Ile Val Thr Leu Asn Val Ser 35 40 45 Be Asn Be Thr Cys His Arg Pro Gly Asn Leu Ser Val Gln Glu Met 50 55 60 Lys Be Gly Pro Leu Ser Trp Tyr Ser Met Gly Leu Ala Ala Asn Ser 65 70 75 80 Ser Ile Lys Ser Arg Val Ala Tyr Cyr Asn Tyr Ser Thr Thr Glu Trp 85 90 95 Thr ou * SEQ ID N 28 (BCF01 (FAN)) R S V Q E M K I G P L S W Y S M G L A A N S S I K Arg Ser Val Gln Glu Met Lys Ile Gly Pro Leu Ser Trp Tyr Ser Met 5 5 10 15 Gly Leu Ala Ala Asn Ser Ser Ile Lys 20 25 * SEQ ID N 29 (BCF06 (LOB)) VVTCTHGIKPTVSTQLIMNGTLSRGKIRIMGRNITD NTKNIIVTLNTSINMTCMRKGRGKIQRIATGPLRWV SMAAKTESQNTGSRIAYCMYNNTEWI Val Val Thr Cys Thr His Gly Ile Lys Pro Thr Val Ser Thr Gln Leu 5 5 10 15 Be Met Asn Gly Thr Leu Ser Arg Gly Lys lle Arg Be Met Gly Arg 20 25 30 Asn Be Thr Asp Asn Thr Lys Asn Ile Be Val Thr Leu Asn Thr Ser 35 40 45 Ile Asn Met Thr Cys Met Arg Lys Gly Arg Gly Lys Ile Gln Arg Ile 50 55 60 Ala Thr Gly Pro Leu Arg Trp Val Ser Met Ala Ala Lys Thr Glu Ser 65 70 75 80 Gln Asn Thr Gly Ser Arg Be Ala Tyr Cys Met Tyr Asn Asn Thr Glu 85 90 95 Trp Ile * SEQ ID N 30 (BCF07 (MAN)) VVTCTHGIKPTVSTQLILNGTLSKGKIRLMAKNISD SGQNIIVTLNTTINMTCHRPGNLKVQEIKIGPMAWY SMGIEAENIPDSRKAYCDYNATKWV Val Val Thr Cys Thr His Gly Ile Lys Pro Thr Val Ser Thr Gin Leu 5 5 10 15 Ile Leu Asn Gly Thr Leu Ser Lys Gly Lys Ile Arg Leu Met Ala Lys 20 25 30 Asn Ile Ser Asp Ser Gly Gln Asn Ile Ile Val Thr Leu Asn Thr Thr 35 40 45 Be Asn Met Thr Cys His Arg Pro Gly Asn Leu Lys Val Gin Glu Be 50 55 60 Lys Be Gly Pro Met Ala Trp Tyr Ser Met Gly Ile Glu Ala Glu Asn 65 70 75 80 Be Pro Asp Ser Arg Lys Ala Tyr Cys Asp Tyr Asn Ala Thr Lys Trp 85 90 95 Val * SEQ ID N031 (BCFll (NAN)) VVTCTHGIKPAVSTQLILNGTLSEGKIRIMGQNISD S G K N I I V T L N K T V N M N I T C T R D G D Q K V Q E I G I G P L S WYSMSIAEDSAKNTRAAYC NYSASSWK Val Val Thr Cys Thr His Gly Ile Lys Pro Ala Val Ser Thr Gln Leu 5 5 10 15 Be Leu Asn Gly Thr Leu Ser Glu Gly Lys ne Arg Be Met Gly Gln 20 25 30 Asn Ile Ser Asp Ser Gly Lys Asn ne ne Val Thr Leu Asn Lys Thr 35 40 45 Val Asn Met Asn Be Thr Cys Thr Arg Asp Gly Asp Gln Lys Val Gin 50 55 60 Glu ne Gly Be Gly Pro Leu Ser Trp Tyr Ser Met Ser Be Ala Glu 65 70 75 80 Asp Ser Ala Lys Asn Thr Arg Ala Ala Tyr Cys Asn Tyr Ser Ala Ser 85 90 95 Ser Trp Lys * SEQ ID N032 (BCF08 (NKO)) VVTCTHGIKPTVSTHLILN GTISEGEIRIMGKNIRE NAKNIIVTLNSTINMTCERPEGNLTIQEIHSGPMAW YSLGLKRNTTVRSRSAHCKYNTTNWE Val Val Thr Cys Thr His Gly Be Lys Pro Thr Val Ser Thr His Leu 5 5 10 15 Ile Leu Asn Gly Thr Ile Ser Glu Gly Glu Ile Arg Ile Met Gly Lys 20 25 30 Asn Be Arg Glu Asn Ala Lys Asn Be Be Val Thr Leu Asn Ser Thr 35 40 45 ne Asn Met Thr Cys Glu Arg Pro Glu Gly Asn Leu Thr ne Gln Glu 50 55 60 Be His Ser Gly Pro Met Ala Tlp Tyr Ser Leu Gly Leu Lys Arg Asn 65 70 75 80 Thr Thr Val Arg Ser Arg Ser Ala His Cys Lys Tyr Asn Thr Thr Asn 85 90 95 Trp Glu ou * SEQ ID N033 (BCF08 (NKO)) R T I Q E I H S G P M A W Y S L G L K R N T T V R Arg Thr Ile Gin Glu Ile His Ser Gly Pro Met Ala Trp Tyr Ser Leu 1 5 10 15 Gly Leu Lys Arg Asn Thr Thr Val Arg 20 25 * SEQ ID N034 (BCF03 (POC)) VVTCTHGIKPAVSTQLILNGTLSKGKIRIMAKNITN TGNNIIVTLNSTINITCNRPGRGIKQIGIGPMSVYSG SLADLGGNNNSRIAYCDYDITKWNET Val Val Thr Cys Thr His Gly Ile Lys Pro Ala Val Ser Thr Gln Leu 5 5 10 15 Be Leu Asn Gly Thr Leu Ser Lys Gly Lys ne Arg ne Met Ala Lys 20 25 30 Asn Be Thr Asn Thr Gly Asn Asn Be ne Val Thr Leu Asn Ser Thr 35 40 45 Be Asn Ile Thl Cys Asn Arg Pro Gly Arg Gly Be Lys Gln Ile Gly 50 55 60 ne Gly Pro Met Ser Val Tyr Ser Gly Ser Leu Ala Asp Leu Gly Gly 65 70 75 80 Asn Asn Asn Ser Arg Be Ala Tyr Cys Asp Tyr Asp Be Thr Lys Trp 85 90 95 Asn Glu Thr ou * SEQ ID N035 (BCF03 (POC)) R I K Q I G I G P M S V Y S G S L A D L G N N N Arg Be Lys Gln Be Gly Be Gly Pro Met Ser Val Tyr Ser Gly Ser 5 5 10 15 Leu Ala Asp Leu Gly Asn Asn Asn 20 - ceux exprimés par le fragment de gène gp41 env, conforme à l'invention * SEQ ID N036 (BCF02 (ESS)) R Q L R A R L L A L E T L I Q N Q Q L L N S W G C K G R I V C Y T S V K W N * * W T Arg Gln Leu Arg Ala Arg Leu Leu Ala Leu Glu Thr Leu Be Gln Asn 5 5 10 15 Gln Gln Leu Leu Asn Ser Trp Gly Cys Lys Gly Arg Ile Val Cys Tyr 20 25 30 Thr Ser Val Lys Trp Asn Trp Thr 35 40 * SEQ ID N037 (BCF01 (FAN)) R Q L R A R L L A L E T L I Q N Q Q L L N L W G C K G R L L C Y T S V K W N S T Arg Gin Leu Arg Ala Arg Leu Leu Ala Leu Glu Thr Leu Ile Gin Asn 5 5 10 15 Gln Gln Leu Leu Asn Leu Trp Gly Cys Lys Gly Arg Leu Leu Cys Tyr 20 25 30 Thr Ser Val Lys Trp Asn Ser Thr 35 40 * SEQ ID N038 (BCF06 (LOB)) RQLRARLQALEPLIQNQQRLSLWGCKGRIICYTSAK WNNT Arg Gin Leu Arg Ala Arg Leu Gin Ala Leu Glu Pro Leu ne Gln Asn 5 5 10 15 Gln Gln Arg Leu Ser Leu Trp Gly Cys Lys Gly Arg Ile Ile Cys Tyr 20 25 30 Thr Ser Ala Lys Trp Asn Asn Thr 35 40 * SEQ ID N039 (BCF07 (MAN)) R Q L R A R L L A L E T L I Q N Q Q L L N S W G C K G R L V C Y T S V K W N E T Arg Gln Leu Arg Ala Arg Leu Leu Ala Leu Glu Thr Leu Ile Gln Asn 5 5 10 15 Gln Gln Leu Leu Asn Ser Trp Gly Cys Lys Gly Arg Leu Val Cys Tyr 20 25 30 Thr Ser Val Lys Trp Asn Glu Thr 35 40 * SEQ ID N 40 (BCF08 (NKO)) R Q L R A R L L A L E T L I Q N Q Q L L N L W G C K G R L L C Y T S V KWNTT Arg Gln Leu Arg Ala Arg Leu Leu Ala Leu Glu Thr Leu Be Gln Asn 5 5 10 15 Gln Gln Leu Leu Asn Leu Trp Gly Cys Lys Gly Arg Leu Leu Cys Tyr 20 25 30 Thr Ser Val Lys Trp Asn Thr Thr 35 40 * SEQ ID N041 (BCF03 (POC)) R Q L R A R L Q A L E T L I Q N Q Q L L S L W G C K G R L V C Y T S V KWHNT Arg Gln Leu Arg Ala Arg Leu Gln Ala Leu Glu Thr Leu Ile Gln Asn 1 5 10 15 Gln Gln Leu Leu Ser Leu Trp Gly Cys Lys Gly Arg Leu Val Cys Tyr 20 25 30 Thr Ser Val Lys Trp His Asn Th 35 40 * SEQ ID N042 (BCF11 (NAN)) RQLRARLVALETLVQNQQLLNLWGCKGRLTCYTSV KWNDT Arg Gln Leu Arg Ala Arg Leu Val Ala Leu Glu Thr Leu Val Gln Asn 1 5 10 15 Gln Gln Leu Leu Asn Leu Trp Gly Cys Lys Gly Arg Leu Thr Cys Tyr 20 25 30 Thr Ser Val Lys Trp Asn Asp Thr 35 40 - ceux exprimés par le fragment de gène gag conforme à l'invention * SEQ ID N043 (BCF02 (ESS)) P I S P R T L N A W V k A V E E K A F N P E I I P M F M A L S E G A V p Y D I N T M L N A I G E H Q G A L Q V L K E V I N e E A L e W D R T H p p p I GPL P P G Q I RD P T G S D I AG T T S T Q Q E Q v hW V T R N PnpiPVGDIYWKWIVFGLNKLVKmY Pro Be Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Ala Val Glu Glu 5 5 10 15 Lys Ala Phe Asn Pro Glu Be Be Pro Met Phe Met Ala Leu Ser Glu 20 25 30 Gly Ala Val Pro Tyr Asp Be Asn Thr Met Leu Asn Ala Be Gly Glu 35 40 45 His Gln Gby Ala Leu Gin Val Leu Lys Glu Val Be Asn Glu Glu Ala 50 55 60 Leu Glu Trp Asp Arg Thr His Pro Pro Pro Ile Gly Pro Leu Pro Pro 65 70 75 80 Gly Gln Ile Arg Asp Pro Thr Gly Ser Asp Ile Ala Gly Thr Thr Ser 85 90 95 Thr Gin Gln Glu Gln Val His Trp Val Thr Arg Asn Pro Asn Pro ne 100 105 110 Pro Val Gly Asp Ile Tyr Trp Lys Trp ne Val Phe Gly Leu Asn Lys 115 120 125 Leu Val Lys Met Tyr 130 * SEQ ID N044 (BCF01 (FAN)) a I S P R T L N A W V k A V E E K A F N P E I I P M F M A L S E G A i p Y D I N T M L N A I G g H Q G A L Q V L K E V I N D E A a D W D R T H T p p V G P L P P G Q I R e P T G S D I A G T T S T Q Q E Q v h W I T R p napiPVGDIYrKWIVIGLNKmVKmY Ala Be Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Ala Val Glu Glu 5 5 10 15 Lys Ala Phe Asn Pro Glu Be Be Pro Met Phe Met Ala Leu Ser Glu 20 25 30 Gly Ala Be Pro Tyr Asp Be Asn Thr Met Leu Asn Ala Be Gly Gly 35 40 45 His Gln Gly Ala Leu Gln Val Leu Lys Glu Val Be Asn Asp Glu Ala 50 55 60 Ala Asp Trp Asp Arg Thr His Thr Pro Pro Val Gly Pro Leu Pro Pro 65 70 75 80 Gly Gln Ile Arg Glu Pro Thr Gly Ser Asp Ile Ala Gly Thr Thr Ser 85 90 95 Thr Gin Glu Glu Glu Val His Trp Ile Thr Arg Pro Asn Asn Pro ne 100 105 110 Pro Val Gly Asp Be Tyr Arg Lys Trp Ile Val Leu Gly Leu Asn Lys 115 120 125 Met Val Lys Met Tyr 130 * SEQ ID N045 (BCF06 (LOB)) ai SP R T L N A W V k A V E E K A F N P El I P M F M A L S E G A V p Y D I N T M L N A I G g H Q G A L Q V L K E V I N e E A a E W D R T H p p A M G P L P P G Q I R D P T G S D I AG T T S T Q Q E Q I NW I T R p n npVPVGDIYrKWIVIGLNKmVKLY Ala Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Ala Val Glu Glu 1 5 10 15 Lys Ala Phe Asn Pro Glu Be Be Pro Met Phe Met Ala Leu Ser Glu 20 25 30 Gly Ala Val Pro Tyr Asp Be Asn Thr Met Leu Asn Ala Be Gly Gly 35 40 45 His Gln Gly Ala Leu Gln Val Leu Lys Glu Val Ile Asn Glu Glu Ala 50 55 60 Ala Glu Trp Asp Arg Thr His Pro Pro Ala Met Gly Pro Leu Pro Pro 65 70 75 80 Gly Gln Be Arg Asp Pro Thr Gly Ser Asp Be Ala Gly Thr Thr Ser 85 90 95 Thr Glu Gin Glu Glu Be Asn Trp ne Thr Arg Pro Asn Asn Pro Val 100 105 110 Pro Val Gly Asp Be Tyr Arg Lys Trp Be Val Leu Gly Leu Asn Lys 115 120 125 Met Val Lys Leu Tyr 130 * SEQ ID N046 (BCF07 (MAN)) ai SP R T L N A W V k A V E E K A F N P El I P M F M A L S E G A i S YDINTMLNAIGgHQGALQVLKEVINeEAaeWDRTHp I p V GPL P P G Q I RD P T G S D I AG T T S T Q Q E Q v hW T T R p n npiPVGDIYrKWIVIGLNKmVKmY Ala Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Ala Val Glu Glu 1 5 10 15 Lys Ala Phe Asn Pro Glu Ile Ile Pro Met Phe Met Ala Leu Ser Glu 20 25 30 Gly Ala Ile Ser Tyr Asp Be Asn Thr Met Leu Asn Ala Be Gly Gly 35 40 45 His Gin Gly Ala Leu Gln Val Leu Ls Glu Val Be Asn Glu Glu Ala 50 55 60 Ala Glu Trp Asp Arg Thr His Pro Ile Pro Val Gly Pro Leu Pro Pro 65 70 75 80 Gly Gln Ile Arg Asp Pro Thr Gly Ser Asp Be Ala Gly Thr Thr Ser 85 90 95 Thr Gln Gln Glu Gln Val His Trp Thr Thr Arg Pro Asn Asn Pro Be 100 105 110 Pro Val Gly Asp Ile Tyr Arg Lys Trp Ile Val Leu Gly Leu Asn Lys 115 120 125 Met Val Lys Met Tyr 130 * SEQ ID N047 (BCF11 (NAN)) ai SP R T L N A W VI AV E E K A F N P El I P M F M A L S E G A V p Y D I N T M L N A I G g H Q G A L Q V L K E V I N e E A a D W D R T H p p p V GPL P P G Q I R e P T G S D I AG T T S T Q Q E Q I hW I T R G GnSiPVGDIYrKWIVIGLNKmVKmY Ala Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Be Ala Val Glu Glu 1 5 10 15 Lys Ala Phe Asn Pro Glu Ile Ile Pro Met Phe Met Ala Leu Ser Glu 20 25 30 Gly Ala Val Pro Tyr Asp Be Asn Thr Met Leu Asn Ala Be Gly Gly 35 40 45 His Gln Gly Ala Leu Gln Val Leu Lys Glu Val Be Asn Glu Glu Ala 50 55 60 Ala Asp Trp Asp Arg Thr His Pro Pro pro Val Gly Pro Leu Pro Pro 65 70 75 80 Gly Gln Ile Arg Glu Pro Thr Gly Ser Asp Ile Ala Gly Thr Thr Ser 85 90 95 Thr Gln Gln Gln Gln Ile His Trp Ile Thr Arg Gly Gly Asn Ser Ile 100 105 110 Pro Val Gly Asp Ile Tyr Arg Lys Trp Ile Val Leu Gly Leu Asn Lys 115 120 125 Met Val Lys Met Tyr 130 * SEQ ID N048 (BCF08 (NKO)) PI SP R T L N A W V k A V E E K A F N P El I P M F M A L S E G A i p YDINTMLNAIGgHQGALQVLKEVINeEAaDWDRTH p p p I G P L P P G Q I R e P T G S D I AG T T S T Q Q E Q v hW I T R A n Q S i P V G D I Y r K W I V I G L N K m V K m Y Pro Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Ala Val Glu Glu 1 5 10 15 Lys Ala Phe Asn Pro Gtu Be Be Pro Met Phe Met Ata Leu Ser Gtu 20 25 30 Gty Ala Be Pro Tyr Asp Be Asn Thr Met Leu Asn Ala Be Gty Gty 35 40 45 His Gln Gly Ala Leu Gln Val Leu Lys Glu Val Ile Asn Glu Glu Ala 50 55 60 Ala Asp Trp Asp Arg Thr His Pro Pro Pro Be Gty Pro Leu Pro Pro 65 70 75 80 Gly Gln Ile Arg Glu Pro Thr Gly Ser Asp Ile Ala Gly Thr Thr Ser 85 90 95 Gly Gln Gln Glu Gln Val His Trp Ile Thr Arg Ala Asn Gln Ser Ile 100 105 110 Pro Val Gly Asp ne Tyr Arg Lys Trp Ile Val Leu Gly Leu Asn Lys 115 120 125 Met Val Lys Met Tyr 130 * SEQ ID N049 (BCF03 (POC)) P I SP R T L N A W V k A V E E K A F N P El I P M F M A L S E G A i p Y D I N T M L N A I G g H Q G A L Q V L K E V I N e E A S D W D R T H p p p I GPL P P G QI R e P T G S D I AG T T S T Q Q E Q v hW T T R p nQpiPVGDIYrKWIVIGLNKmVKmY Pro Leu Ser Pro Arg Thr Leu Asn Ala Trp Val Lys Ala Val Glu Glu 1 s 10 15 Lys Ala Phe Asn Pro Glu Ile Ile Pro Met Phe Met Ala Leu Ser Glu 20 25 30 Gly Ala Ile Pro Tyr Asp Ile Asn Thr Met Leu Asn Ala Ile Gly Gly 35 40 45 His Gln Gly Ala Leu Gln Val Leu Lys Glu Val Ile Asn Glu Glu Ala 50 55 60 Ser Asp Trp Asp Arg Thr His Pro Pro Pro ne Gty Pro Leu Pro Pro 65 70 75 80 Gly Gln Ile Arg Glu Pro Thr Gly Ser Asp Ile Ala Gly Thr Thr Ser 85 90 95 Thr Gln Gln Glu Gln Val His Trp Thr Thr Arg Pro Asn Gln Pro Be 100 105 110 Pro Val Gly Asp ne Tyr Arg Lys Trp Be Val Leu Gly Leu Asn Lys 115 120 125 Met Val Lys Met Tyr 130 Dans les séquences ci-dessus, les bases ou les acides aminés représentés en minuscule correspondent aux bases ou aux acides aminés consensus , l'analyse de différents clones ayant conduit à la mise en évidence de quelques variantes.