Protein purification methods

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United States of America Patent

PATENT NO 9988419
SERIAL NO

14766131

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Abstract

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A method for the purification of a desired protein from a protein preparation includes conditioning the protein preparation by treatment with soluble organic multivalent ions, immobilized organic multivalent ions, or both, optionally in the presence of supersaturated allantoin, thereby removing at least 90% of chromatin, then (1) precipitating the desired protein with a nonionic organic polymer in the presence of non-protein-precipitating salts at greater than physiological concentration to provide a precipitate of the desired protein; or (2) precipitating the desired protein with a nonionic organic polymer in the absence of non-precipitating salts at greater than physiological concentration to provide a precipitate and subsequently washing the precipitate with a nonionic organic polymer in the presence of non-protein-precipitating salts at greater than physiological concentration.

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Patent Owner(s)

Patent OwnerAddress
AGENCY FOR SCIENCE TECHNOLOGY AND RESEARCH1 FUSIONOPOLIS WAY #20-10 CONNEXIS NORTH TOWER SINGAPORE 138632

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gagnon, Peter Stanley Centros, SG 25 46

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