Recombinant disulfide-stabilized polypeptide fragments...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/13 (2006.01) A61K 39/395 (2006.01) A61K 47/48 (2006.01) A61P 35/00 (2006.01) C07K 14/725 (2006.01) C07K 16/00 (2006.01) C07K 16/30 (2006.01) C07K 19/00 (2006.01) C12N 15/09 (2006.01) C12N 15/62 (2006.01)

Patent

CA 2164984

The present invention relates to disulfide-stabilized recombinant polypeptide molecules which have the binding ability and specificity for another peptide, such as the variable region of an antibody molecule. Methods of producing these molecules and nucleic acid sequences encoding these molecules are also described. In particular, the invention discloses Fv antibody fragments stabilized by a disulfide bond connecting the V H and V L regions of the Fv fragment. The .alpha. and .beta. chains of T cells receptors may be similarly stabilized by means described in the invention.

La présente invention a pour objet des molécules de polypeptide recombiné stabilisées par disulfure qui ont une capacité et une spécificité de liaison d'un autre peptide, telle que la région variable d'une molécule d'anticorps. Des procédés de production de ces molécules et des séquences d'acide nucléique codant ces molécules sont également décrits. En particulier, la présente invention a trait à des fragments d'anticorps Fv stabilisés par une liaison disulfure reliant les régions VH et VL du fragment Fv. Les chaînes alpha et beta de récepteurs de lymphocytes T peuvent être stabilisées de manière similaire par les moyens décrits par la présente invention.

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