Griffithsin, glycosylation-resistant griffithsin, and...

C - Chemistry – Metallurgy – 07 – K

Patent

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C07K 14/405 (2006.01)

Patent

CA 2567728

An isolated and purified nucleic acid molecule that encodes a polypeptide comprising at least eight contiguous amino acids of SEQ ID NO: 3, wherein the at least eight contiguous amino acids have anti-viral activity, as well as an isolated and purified nucleic acid molecule that encodes a polypeptide comprising at least eight contiguous amino acids of SEQ ID NO: 3, wherein the at least eight contiguous amino acids have anti-viral activity, and, when the at least eight contiguous amino acids comprise amino acids 1-121 of SEQ ID NO: 3, the at least eight contiguous amino acids have been rendered glycosylation- resistant, a vector comprising such an isolated and purified nucleic acid molecule, a host cell comprising the nucleic acid molecule, optionally in the form of a vector, a method of producing an anti-viral polypeptide or conjugate thereof, the anti-viral polypeptide itself, a conjugate or fusion protein comprising the anti-viral polypeptide, and compositions comprising an effective amount of the anti-viral polypeptide or conjugate or fusion protein thereof. Further provided are methods of inhibiting prophylactically or therapeutically a viral infection of a host.

L'invention concerne une molécule d'acide nucléique isolée et purifiée codant un polypeptide comprenant au moins huit acides aminés contigus de SEQ ID NO: 3, ces huit acides aminés contigus présentant une activité antivirale, ainsi qu'une molécule d'acide nucléique isolée et purifiée codant un polypeptide comprenant au moins huit acides aminés contigus de SEQ ID NO: 3, ces huit acides aminés contigus présentant une activité antivirale, et, lorsque ces huit acides aminés contigus comprennent des acides aminés 1-121 de SEQ ID NO: 3, les huit acides aminés contigus sont rendus résistants à la glycosylation. L'invention concerne un vecteur comprenant une telle molécule d'acide nucléique isolée et purifiée, une cellule hôte comprenant la molécule d'acide nucléique, éventuellement sous la forme d'un vecteur. L'invention concerne également une méthode de production d'un polypeptide antiviral ou d'un conjugué de celui-ci, le polypeptide antiviral lui-même, un conjugué ou une protéine hybride comprenant le polypeptide antiviral, et des compositions comprenant une quantité efficace de ce polypeptide antiviral ou de ce conjugué, ou de la protéine hybride de ceux-ci. L'invention concerne encore des méthodes d'inhibition prophylactiques ou thérapeutiques d'une infection virale d'un hôte.

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