Recombinant soluble fc receptors

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) A61K 38/17 (2006.01) C07K 14/705 (2006.01) C07K 14/735 (2006.01) C07K 17/00 (2006.01) C12N 1/21 (2006.01) C12N 15/70 (2006.01) G01N 33/53 (2006.01) G01N 33/68 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2352539

Recombinant soluble Fc receptors according to the present invention are characterized by the absence of transmembrane domains, signal peptides and glycosylation. Such Fc receptors can easily be obtained by expressing respective nucleic acids in prokaryotic host cells and renaturation of the obtained inclusion bodies, which procedure leads to a very homogenous and pure product. The products can be used for diagnostic as well as pharmaceutical applications and also for the generation of crystal structure data. Such crystal structure data can be used for the modelling of artificial molecules. A further embodiment comprises coupling the Fc receptors according to the invention to solid materials like chromatography materials that can be used to separate and/or enrich antibodies.

L'invention porte sur des récepteurs solubles de recombinaison du Fc caractérisés par l'absence de domaines transmembranaires, de peptides signaux, et de glycosylation. Lesdits récepteurs s'obtiennent facilement par expression des acides nucléiques correspondants dans des cellules procaryotes hôtes, puis renaturation des corps d'inclusion ainsi obtenus. Ce processus donne des produits très homogènes et purs, utilisables à des fins de diagnostic ou pour des applications pharmaceutiques, ainsi que pour l'obtention de données sur la structure des cristaux pouvant servir à modéliser des molécules de synthèse. L'invention porte en outre sur le couplage desdits récepteurs à des matériaux solides, par exemple de chromatographie, utilisables pour la séparation et/ou l'enrichissement des anticorps.

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