Purified thrombopoietin and method of making it
    1.
    发明授权
    Purified thrombopoietin and method of making it 失效
    纯化血小板生成素及其制备方法

    公开(公告)号:US5986049A

    公开(公告)日:1999-11-16

    申请号:US457254

    申请日:1995-06-01

    摘要: Purified mammalian thrombopoietin proteins and methods of making them are disclosed. The proteins are characterized by a M.sub.r =70,000.+-.10,000 daltons as determined by SDS-polyacrylamide gel electrophoresis under denaturing conditions and are at least 90% pure with respect to contaminating proteins. The proteins can be prepared by a method in which thrombopoietin is adsorbed to and eluted from a polypeptide comprising a ligand-binding domain of an MPL receptor, then the eluted thrombopoietin is fractionated by anion exchange chromatography.

    摘要翻译: 公开了纯化的哺乳动物血小板生成蛋白及其制备方法。 蛋白质的特征在于Mr = 70,000 +/- 10,000道尔顿,在变性条件下通过SDS-聚丙烯酰胺凝胶电泳测定,并且相对于污染蛋白质至少为90%纯度。 蛋白质可以通过血小板生成素被吸附到包含MPL受体的配体结合结构域的多肽中并从其中洗脱的方法来制备,然后通过阴离子交换色谱分离洗脱的血小板生成素。