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    • 90. 发明申请
    • TETRAMERIZING POLYPEPTIDES AND METHODS OF USE
    • 聚合多聚物和使用方法
    • WO2007124283A3
    • 2008-01-17
    • PCT/US2007066607
    • 2007-04-13
    • ZYMOGENETICS INCWEST JAMES WBRANDT CAMERON S
    • WEST JAMES WBRANDT CAMERON S
    • C07K14/705
    • C07K14/70532C07K2319/00C12P21/02
    • The present invention relates to a method of preparing a tetrameric protein comprising culturing a host cell transformed or transfected with an expression vector encoding a fusion protein comprising a vasodialator-stimulated phosphoprotein (VASP) domain and a heterologous protein. In one embodiment, the heterologous protein is a membrane protein, the portion of the heterologous protein that included in the fusion protein is the extracellular domain of that protein, and the resulting fusion protein is soluble. The method can be used to produced homo- and hetero-tetrameric proteins. The present invention also encompasses DNA molecules, expression vectors, and host cells used in the present method and fusion proteins produced by the present method.
    • 本发明涉及一种制备四聚蛋白的方法,其包括用编码融合蛋白的表达载体转化或转染的宿主细胞,所述融合蛋白包含血管扩张剂刺激的磷蛋白(VASP)结构域和异源蛋白。 在一个实施方案中,异源蛋白质是膜蛋白,融合蛋白中包含的异源蛋白质的部分是该蛋白质的细胞外结构域,并且所得的融合蛋白质是可溶的。 该方法可用于产生同型和异四聚体蛋白质。 本发明还包括本方法中使用的DNA分子,表达载体和宿主细胞以及通过本发明方法产生的融合蛋白。