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    • 21. 发明申请
    • PROTEIN PURIFICATION IN THE PRESENCE OF NONIONIC ORGANIC POLYMERS AND ELECTROPOSITIVE SURFACES
    • 非离子有机聚合物和电镀表面存在的蛋白质纯化
    • US20160009759A1
    • 2016-01-14
    • US14769101
    • 2014-02-26
    • Agency for Science, Technology and Research
    • Peter Stanley GAGNON
    • C07K1/16
    • C07K1/165B01D15/305B01D15/363B01D15/3847C07K1/30C07K1/303B01D15/327B01D15/34
    • A method of purifying a desired protein from a preparation includes (a) providing the preparation in a form having less than about 5% of chromatin residing in an original production medium, (b) contacting the preparation with a nonionic organic polymer and a salt, a concentration of nonionic organic polymer being sufficient to precipitate the desired protein or cause its accretion on a hydrophilic surface, or maintain it in a precipitated state or accreted on the hydrophilic surface, the salt concentration being sufficient to produce greater than physiological conductivity, and (c) contacting the preparation with at least one electropositive surface, optionally in the presence of a salt concentration sufficient to produce greater than physiological conductivity, the desired protein does not substantially adsorb to the at least one electropositive surface while not preventing adsorption of acidic contaminants to the at least one electropositive surface.
    • 从制剂中纯化所需蛋白质的方法包括(a)提供具有少于约5%染色质残留在原始生产培养基中的形式的制剂,(b)使制剂与非离子有机聚合物和盐接触, 非离子有机聚合物的浓度足以沉淀所需蛋白质或使其在亲水表面上的沉积,或将其保持在沉淀状态或在亲水表面上增加,盐浓度足以产生大于生理电导率,和( c)任选地在足以产生大于生理电导率的盐浓度的情况下任选地将制剂与至少一个正电性表面接触,所需蛋白质基本上不吸附至至少一个正电面,同时不阻止酸性污染物的吸附 所述至少一个正电面。
    • 23. 发明申请
    • PROTEIN PURIFICATION METHODS
    • 蛋白纯化方法
    • US20150376231A1
    • 2015-12-31
    • US14766131
    • 2014-02-05
    • AGENCY FOR SCIENCE TECHNOLOGY AND RESEARCH
    • Peter Stanley GAGNON
    • C07K1/30C07K16/00B01D15/36C07K16/28
    • 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处理,任选地在过饱和尿囊素存在下调节蛋白质制剂,由此除去至少90%的染色质 ,然后(1)在非蛋白质沉淀盐存在下,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(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,随后在非蛋白质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。
    • 30. 发明授权
    • Purification of proteins
    • 蛋白质的纯化
    • US08362217B2
    • 2013-01-29
    • US12004319
    • 2007-12-20
    • Wilson MoyaJad Jaber
    • Wilson MoyaJad Jaber
    • A61K39/395C07K1/32
    • C07K1/32C07K1/30
    • The present invention relates to a selectively soluble polymer capable of binding to a desired biomolecules in a mixture containing various biological materials and the methods of using such a polymer to purify a biomolecule from such a mixture. The polymer is soluble in the mixture under a certain set of process conditions such as pH or temperature and/or salt concentration and is rendered insoluble and precipitates out of solution upon a change in the process conditions. The polymer is capable of binding to the desired biomolecule (protein, polypeptide, etc) and remains capable of binding to that biomolecule even after the polymer is precipitated out of solution. The precipitate can then be filtered out from the remainder of the stream and the desired biomolecule is recovered such as by elution and further processed.
    • 本发明涉及能够在含有各种生物材料的混合物中结合所需生物分子的选择性可溶性聚合物以及使用这种聚合物从这种混合物中纯化生物分子的方法。 聚合物在一定的工艺条件例如pH或温度和/或盐浓度下可溶于混合物中,并且在工艺条件改变时变得不溶解并沉淀出溶液。 聚合物能够结合所需的生物分子(蛋白质,多肽等),并且即使在聚合物从溶液中沉淀出来之后仍然能够结合该生物分子。 然后可以从流的其余部分过滤出沉淀物,并回收所需的生物分子,例如通过洗脱和进一步处理。