Method for the recombinant production of peptidic antiviral...

C - Chemistry – Metallurgy – 12 – P

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C12P 21/02 (2006.01) C07K 14/155 (2006.01) C07K 14/16 (2006.01) C12N 15/62 (2006.01)

Patent

CA 2450548

A process for the production of an antifusogenic peptide of a length of about 10 to 50 amino acids in a prokaryotic host cell, characterized in that, under such conditions that inclusion bodies of said non-fusion antifusogenic peptide or said fusion peptide are formed, a) in said host cell there is expressed a nucleic acid encoding said antifusogenic peptide as a non-fusion peptide or encoding a fusion peptide of a length of about 14 to 70 amino acids consisting of said antifusogenic peptide N-terminally linked to a further peptide of a length of about 4 to 30 amino acids; b) said host cell is cultivated; c) said inclusion bodies are recovered and solubilized; d) in the case of said fusion peptide said antifusogenic peptide is cleaved off from said further peptide; and e) said antifusogenic peptide is isolated.

La présente invention concerne un procédé permettant la production d'un peptide antifusogène ayant une longueur d'environ 10 à 50 acides aminés dans une cellule hôte procaryote. Le procédé se caractérise en ce que, dans certaines conditions permettant à des corps d'inclusion dudit peptide antifusogène de non fusion ou dudit peptide de fusion : a) dans ladite cellule hôte est exprimé un acide nucléique codant pour ledit peptide antifusogène en tant que peptide de non fusion ou codant pour un peptide de fusion ayant une longueur d'environ 14 à 70 acides aminés comprenant le peptide antifusogène dont l'extrémité N est liée à un autre peptide ayant une longueur d'environ 4 à 30 acides aminés ; b) mise en culture de ladite cellule hôte ; c) récupération et solubilisation desdits corps d'inclusion ; d) dans le cas dudit peptide de fusion, séparation dudit peptide antifusogène dudit autre peptide ; et e) isolation dudit peptide antifusogène.

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