Trk polypeptide purification method

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 1/16 (2006.01) C07K 1/18 (2006.01) C07K 1/22 (2006.01) C07K 14/71 (2006.01)

Patent

CA 2460706

This invention relates to a purification method, particularly for purifying tyrosine kinase receptor related polypeptides, and to products made by the method. The method comprises a method of producing tyrosine kinase receptor- related polypeptides, the method comprising expressing a tyrosine kinase receptro-related polypeptide in a recombinant expression system and separating expressed monomeric tyrosine kinase receptor-related polypeptide from multimeric form(s) of the expressed polypeptide in a separation step, the separation step allowing refolding of the expressed tyrosine kinase receptor- related polypeptide into a biologically active form.

L'invention se rapporte à un procédé de purification, permettant notamment de purifier les polypeptides associés au récepteur tyrosine kinase, et à des produits fabriqués à partir de ce procédé. Ce procédé consiste à : produire des polypeptides associés au récepteur tyrosine kinase ; exprimer un polypeptide associé au récepteur de la tyrosine kinase dans un système à expression recombinante ; et séparer le polypeptide associé au récepteur de la tyrosine kinase monomère exprimé de la ou des formes multimères du polypeptide exprimé dans une étape de séparation. L'étape de séparation permet de replier le polypeptide associé au récepteur tyrosine kinase exprimé dans une forme active biologiquement.

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