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    • 12. 发明公开
    • PROTEIN PURIFICATION METHODS
    • PROTEINAUFREINIGUNGSVERFAHREN
    • EP2953965A4
    • 2016-09-14
    • EP14749299
    • 2014-02-05
    • AGENCY SCIENCE TECH & RES
    • GAGNON PETER STANLEY
    • C07K1/30B01D15/36C01D3/04C01D5/00C07C43/10C07C53/126C07C211/14C07C229/16C07D219/10C07D233/88C07D279/18
    • C07K1/303B01D15/36C07K1/30C07K16/00C07K16/2863C07K16/32
    • 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.
    • 用于从蛋白质制剂中纯化所需蛋白质的方法包括通过用可溶性有机多价离子,固定的有机多价离子或两者进行处理来调节蛋白质制剂,任选地在过饱和尿囊素存在下,从而除去至少90%的染色质 ,然后(1)在非蛋白沉淀盐存在下,用非离子有机聚合物在大于生理浓度下沉淀所需蛋白质以提供所需蛋白质的沉淀物; 或者(2)在不存在非沉淀盐的情况下用非离子有机聚合物在大于生理浓度下沉淀所需蛋白质以提供沉淀物,随后在非蛋白沉淀盐存在下用非离子有机聚合物洗涤沉淀物 大于生理浓度。