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    • 2. 发明申请
    • METHOD FOR PURIFICATION OF A MIXTURE OF HYDROXAMATE DERIVATIZED PROTEIN AND NATIVE PROTEIN
    • 纯化羟脯氨酸衍生蛋白和原蛋白混合物的方法
    • WO1995014035A1
    • 1995-05-26
    • PCT/SE1994001088
    • 1994-11-17
    • PHARMACIA ABWIKSTRÖM, Per
    • PHARMACIA AB
    • C07K07/10
    • C07K14/65C07K1/22
    • The invention relates to a method for purification of a mixture of hydroxamate derivatized protein/proteins and native protein which is characterized by treating the mixture with immobilized metal and thereby adsorbing the hydroxamate derivatized protein/proteins on the immobilized-metal and recovering the native protein. The protein could be IGF-I. It also relates to a process for the production of a native protein which is characterized by expression of the protein as a fusion protein, cleavage of the fusion protein by hydroxylamine, separation of native protein from hydroxamate derivatized protein by adsorbing the hydroxamate derivatized protein on immobilized metal and directly recovering the native protein. The use of immobilized metal affinity chromatography for separation of native protein from hydroxamate derivatized protein is also claimed.
    • 本发明涉及纯化异羟肟酸衍生化蛋白质/蛋白质和天然蛋白质的混合物的方法,其特征在于用固定化金属处理混合物,从而将固定化金属上的异羟肟酸衍生化蛋白质/蛋白质吸附并回收天然蛋白质。 蛋白质可以是IGF-I。 它还涉及生产天然蛋白质的方法,其特征在于将蛋白质表达为融合蛋白,通过羟胺切割融合蛋白,通过将固定化的羟肟酸衍生化蛋白质吸附在异羟肟酸衍生化蛋白质上,将天然蛋白质与异羟肟酸衍生化蛋白质分离 金属并直接回收天然蛋白质。 还要求使用固定化金属亲和层析法将天然蛋白质与异羟肟酸衍生化蛋白质分离。