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    • 2. 发明申请
    • PROCESSES FOR SEPARATING AGGREGATED PROTEINS FROM MONOMERIC PROTEINS IN A BIOLOGICAL SOLUTION
    • 在生物溶液中从单体蛋白中分离聚集蛋白的过程
    • WO2018048698A1
    • 2018-03-15
    • PCT/US2017/049376
    • 2017-08-30
    • 3M INNOVATIVE PROPERTIES COMPANY
    • COLAK ATAN, SemraVAIL, Andrew W.RASMUSSEN, Jerald K.GRIESGRABER, George W.BOTHOF, Catherine A.
    • C07K1/18C07K1/34
    • C07K1/34B01D71/40C07K1/18C07K16/00
    • A process for separating aggregated proteins from monomeric proteins in a biological solution, the process including: providing at least one filter element having a contacting surface, wherein the filter element comprises filter media comprising: a porous substrate; and disposed on the porous substrate, a polymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein each of a first plurality of pendant groups comprises: (1) at least one acidic group or salt thereof; and (2) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and allowing an initial biological solution to contact the contacting surface of the filter element under conditions effective to separate the aggregated proteins from the monomeric proteins such that a final biological solution includes purified monomeric proteins.
    • 一种用于从生物溶液中的单体蛋白中分离聚集蛋白的方法,所述方法包括:提供至少一个具有接触表面的过滤元件,其中所述过滤元件包含过滤介质,所述过滤介质包含:多孔基材; 并且设置在所述多孔基材上的聚合物,所述聚合物包含烃骨架和连接至所述烃骨架的多个侧基,其中第一多个侧基中的每一个包含:(1)至少一种酸性基团或其盐; 和(2)通过至少6个连接原子的链将所述至少一个酸性基团或其盐直接连接到烃主链上的间隔基团; 并且在有效将聚集蛋白与单体蛋白分离的条件下使初始生物溶液与过滤元件的接触表面接触,使得最终生物溶液包括纯化的单体蛋白。