TETRAMERIZING POLYPEPTIDES AND METHODS OF USE
    2.
    发明申请
    TETRAMERIZING POLYPEPTIDES AND METHODS OF USE 审中-公开
    聚合多聚物和使用方法

    公开(公告)号:US20100075377A1

    公开(公告)日:2010-03-25

    申请号:US12553232

    申请日:2009-09-03

    IPC分类号: C12P21/02 C07K14/00

    摘要: 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.

    摘要翻译: 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。

    PRODUCTION OF HOMOTRIMERIC FUSION PROTEINS
    10.
    发明申请
    PRODUCTION OF HOMOTRIMERIC FUSION PROTEINS 审中-公开
    共培养融合蛋白的生产

    公开(公告)号:US20090192291A1

    公开(公告)日:2009-07-30

    申请号:US12353713

    申请日:2009-01-14

    IPC分类号: C07K14/00

    摘要: The present invention provides method for producing trimeric tumor necrosis factor receptors that are potent inhibitors of their cognate ligands. More particularly, the present invention provides polypeptides that comprise: (1) an extracellular domain of the transmembrane activator and CAML (calcium-signal modulating cyclophilin ligand) interactor (TACI), and (2) a trimerizing polypeptide. Suitable TACI extracellular domains include: (1) amino acid residues 30 to 110 of SEQ ID NO:4, (2) amino acid residues 1 to 110 of SEQ ID NO:4, (3) amino acid residues 30 to 154 of SEQ ID NO:4, and (4) amino acid residues 1 to 154 of SEQ ID NO:4. Illustrative trimerizing polypeptides include a trimerizing fragment of Heat Shock Binding Protein-1. The present invention further provides homotrimeric complexes of fusion proteins comprising a TACI extracellular domain and a trimerizing polypeptide.

    摘要翻译: 本发明提供了产生三聚体肿瘤坏死因子受体的方法,所述三聚体肿瘤坏死因子受体是其相关配体的有效抑制剂。 更具体地,本发明提供多肽,其包含:(1)跨膜激活剂的胞外结构域和CAML(钙信号调节亲环蛋白配体)相互作用体(TACI),和(2)三聚体多肽。 合适的TACI细胞外结构域包括:(1)SEQ ID NO:4的氨基酸残基30至110,(2)SEQ ID NO:4的氨基酸残基1至110,(3)SEQ ID NO:4的氨基酸残基30至154 NO.4和(4)SEQ ID NO:4的氨基酸残基1至154。 示例性的三聚化多肽包括热休克结合蛋白-1的三聚体片段。 本发明还提供了包含TACI胞外域和三聚多肽的融合蛋白的同源三聚体。