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    • 40. 发明公开
    • PROCESS FOR PURIFYING PROTEINS IN A HYDROPHOBIC INTERACTION CHROMATOGRAPHY FLOW-THROUGH FRACTION
    • VERFAHREN ZUR AUFREINIGUNG VON PROTEINEN IN EERER DURCHFLUSSFRAKTION AUS DER CHROMATOGRAPHIE MIT HYDROPHOBEN WECHSELWIRKUNGEN
    • EP1687328A4
    • 2006-11-15
    • EP04796067
    • 2004-10-22
    • AMGEN INC
    • SHUKLA ABHINAV AGHOSE SANCHAYITA
    • C07K14/00C07K1/10C07K1/20C12N9/00C12P21/06
    • C07K14/00C07K1/20C07K2319/30
    • The present invention is a process for separating a target protein (such as a recombinant protein produced in a cell culture) from a mixture containing the target protein and contaminants (such as cell culture contaminants), by contacting the mixture with a hydrophobic adsorbent comprising branched hydrocarbon functional groups in an aqueous salt solution and collecting the unbound flow-through fraction containing the target protein. In one embodiment, the hydrophobic adsorbent may be a branched alkyl functional group. In another embodiment, the branched alkyl functional group has from 3 to 8 carbon atoms. In another embodiment, the branched alkyl functional group is a tertiary carbon atom, such as tert-butyl.
    • 本发明是一种从含有目标蛋白质和污染物(如细胞培养污染物)的混合物中分离目标蛋白质(诸如在细胞培养物中产生的重组蛋白质)的方法,通过使该混合物与包含支链的疏水吸附剂 烃官能团在含水盐溶液中反应并收集含有靶蛋白的未结合的流通部分。 在一个实施方案中,疏水吸附剂可以是支化烷基官能团。 在另一个实施方案中,支化烷基官能团具有3至8个碳原子。 在另一个实施方案中,支化烷基官能团是叔碳原子,如叔丁基。