Method for the production of (poly)peptides by using...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/62 (2006.01) A61K 38/17 (2006.01) A61K 39/295 (2006.01) C07K 14/02 (2006.01) C07K 14/025 (2006.01) C07K 16/08 (2006.01) C07K 16/18 (2006.01) C12Q 1/68 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2344993

The present invention relates to a polynucleotide encoding a fusion protein which is stable in a cell, said fusion protein comprising a first (poly)peptide and a second (poly)peptide which co-precipitates a chaperone. The present invention also relates to a vector comprising the polynucleotide of the invention, a host cell comprising the polynucleotide or the vector of the invention, and a method for the production of the fusion protein of the invention. Also described are methods for the production of said first (poly)peptide, of a fusion protein/chaperone complex, and of an antibody directed against said first (poly)peptide, as well as a method of immunizing a subject with the polynucleotide, the vector, the fusion protein, said first (poly)peptide and/or said fusion protein/chaperone complex of the invention. In addition, the present invention relates to a kit and a diagnostic composition comprising the polynucleotide, the vector, the host cell, the fusion protein, the first (poly)peptide, the fusion protein/chaperone complex and/or the antibody of the invention. The present invention, furthermore, relates to a method for the detection of the presence of an epitope comprised in a (poly)peptide. Additionally described is a pharmaceutical composition comprising the polynucleotide, the vector, the fusion protein, the first (poly)peptide, the antibody, and/or the complex of the present invention and, optionally, a pharmaceutically acceptable carrier and/or diluent, said pharmaceutical composition being preferably a vaccine. Finally, the present invention relates to the use of the polynucleotide or the vector of the invention for the production of an antibody directed against said first (poly)peptide, and the use of a (poly)peptide comprising an epitope detected by the method of the present invention or a complex produced by the method of the invention for the production of an antibody.

La présente invention concerne un polynucléotide codant une protéine de fusion qui est stable dans une cellule. Cette protéine de fusion comprend un premier (poly)peptide et un deuxième (poly)peptide qui précipitent ensemble un chaperon. La présente invention traite également d'un vecteur comprenant le polynucléotide selon l'invention, d'une cellule hôte comprenant le polynucléotide ou le vecteur selon l'invention, et d'un procédé de production de ladite protéine de fusion. L'invention a aussi pour objet des procédés de production du premier (poly)peptide, d'un complexe protéine de fusion/chaperon, et d'un anticorps dirigé contre le premier (poly)peptide et d'un procédé d'immunisation d'un sujet en utilisant le polynucléotide, le vecteur, la protéine de fusion, ledit premier (poly)peptide et/ou le complexe protéine de fusion/chaperon selon l'invention. En outre, la présente invention concerne une trousse et une composition de diagnostique comprenant le polynucléotide, le vecteur, la cellule hôte, la protéine de fusion, le premier (poy)peptide, le complexe protéine de fusion/chaperon et/ou l'anticorps selon l'invention. La présente invention traite aussi d'un procédé permettant de détecter la présence d'un épitope compris dans un (poly)peptide. En outre, l'invention a pour sujet une composition pharmaceutique comprenant le polynucléotide, le vecteur, la protéine de fusion, le premier (poly)peptide, l'anticorps et/ou le complexe selon la présente invention, et éventuellement, un support pharmaceutiquement acceptable et/ou un diluent, ladite composition pharmaceutique étant de préférence un vaccin. Enfin, la présente invention traite de l'utilisation du polynucléotide ou du vecteur selon l'invention pour produire un anticorps dirigé contre ledit premier (poly)peptide, et l'utilisation d'un (poly)peptide comprenant un épitope détecté par le procédé selon l'invention ou un complexe produit par le procédé selon l'invention pour produire un anticorps.

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