Hiv-1 envelope polypeptides for hiv vaccine

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/16 (2006.01) A61K 39/21 (2006.01) C07K 16/10 (2006.01) C12N 15/49 (2006.01)

Patent

CA 2735278

Immunogenic HIV-1 envelope polypeptides are provided, wherein specificamino acid residues are mutated to repress immunosuppression in GP41, thereby boosting the immune response against HIV-1. Specifically, mutation of those specific residues does not affect the fusogenic properties of the viral particle and/or the overall protein structure of the viral envelope protein. The invention further provides peptides and antigens based on the immunogenic HIV-1 envelopes as well as nucleic acid sequences and vectors encoding those. Moreover, biological entities such as viral particles are provided, as well as use of the provided components for preparation of a vaccine against HIV-1/AIDS.

La présente invention concerne des polypeptides denveloppe immunogènes du VIH-1, dans lesquels des résidus spécifiques dacides aminés sont mutés pour réprimer limmunosuppression dans la GP41, stimulant ainsi la réponse immunitaire contre le VIH-1. Spécifiquement, la mutation de ces résidus spécifiques naffecte pas les propriétés de fusion de la particule virale et/ou de la structure protéique globale de la protéine denveloppe virale. Linvention concerne en outre des peptides et des antigènes basés sur les enveloppes immunogènes du VIH-1 ainsi que les séquences nucléiques et les vecteurs les codant. La présente invention concerne en outre des entités biologiques telles que des particules virales, ainsi que lutilisation des composants fournis pour la préparation dun vaccin contre le VIH-1/SIDA.

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