Method for the recombinant expression of a polypeptide

C - Chemistry – Metallurgy – 12 – N

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C12N 15/62 (2006.01) C07K 19/00 (2006.01)

Patent

CA 2624893

A method for the recombinant production of a heterologous polypeptide in a eukaryotic host cell is described. The host cell comprises an expression plasmid, whereby the expression plasmid comprises in a 5' to 3' direction a) a promoter, b) a nucleic acid encoding a first polypeptide, whose amino acid sequence is selected from Table 1 depending on the first two amino acids of the second polypeptide, c) a nucleic acid encoding a second polypeptide comprising a nucleic acid encoding a heterologous polypeptide, a nucleic acid encoding a linker, and a nucleic acid encoding an immunoglobulin fragment, and d) a 3' untranslated region comprising a polyadenylation signal. Further a plasmid and a kit are described.

L'invention porte sur un procédé de production par recombinaison dans une cellule hôte eukaryote d'un polypeptide hétérologue comprenant un plasmide d'expression, et dans la direction 5' à 3': a) un promoteur, b) un acide nucléique codant pour un premier polypeptide, dont la séquence d'acide aminé est sélectionnée dans la table 1 en fonction des deux premiers acides aminés du deuxième polypeptide, c) un acide nucléique codant pour un deuxième polypeptide comportant un acide nucléique codant: pour un polypeptide hétérologue, pour un acide nucléique codant pour un lieur, et pour un acide nucléique codant pour un fragment d'immunoglobine, et d) une région 3' non traduite comportant un signal de polyadénylation. L'invention porte en outre sur un plasmide et sur une trousse.

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