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    • 7. 发明申请
    • MULTI-CHAIN EUKARYOTIC DISPLAY VECTORS AND USES THEREOF
    • 多链显示矢量及其用途
    • US20110190159A1
    • 2011-08-04
    • US13073657
    • 2011-03-28
    • Simon E. HuftonHendricus R.J.M. Hoogenboom
    • Simon E. HuftonHendricus R.J.M. Hoogenboom
    • C40B30/04C40B50/06C40B30/00
    • C12N15/1037C12N15/85C12N2795/00043C12N2800/108C12N2830/002C12N2840/20C40B40/02G01N33/554
    • A eukaryotic expression vector capable of displaying a multi-chain polypeptide on the surface of a host cell is provided, such that the biological activity of the multi-chain polypeptide is exhibited at the surface of the host cell. Such a vector allows for the display of complex biologically active polypeptides, e.g., biologically active multi-chain polypeptides such as immunoglobulin Fab fragments. The present invention describes and enables the successful display of a multi-chain polypeptide on the surface of a eukaryotic host cell. Preferred vectors are described for expressing the chains of a multi-chain polypeptide in a host cell separately and independently (e.g., under separate vector control elements, and/or on separate expression vectors, thus forming a matched vector set). The use of such matched vector sets provides flexibility and versatility in the generation of eukaryotic display libraries, for example the ability to generate and to display multi-chain polypeptides by combining and recombining vectors that express variegations of the individual chains of a multi-chain polypeptide. Entire repertoires of novel chain combinations can be devised using such vector sets.
    • 提供能够在宿主细胞表面上显示多链多肽的真核表达载体,使得多链多肽的生物学活性显示在宿主细胞的表面。 这种载体允许显示复杂的生物活性多肽,例如生物活性多链多肽,例如免疫球蛋白Fab片段。 本发明描述并使得能够在真核宿主细胞的表面上成功显示多链多肽。 描述了优选的载体,用于在宿主细胞中分别且独立地(例如,在单独的载体控制元件下和/或在分开的表达载体上,从而形成匹配的载体集)表达多链多肽的链。 使用这种匹配的载体集提供了在真核生物显示文库的产生中的灵活性和多功能性,例如通过组合和重组表达多链多肽的各个链多态的载体来产生和显示多链多肽的能力 。 可以使用这样的矢量集来设计新的链组合的全部曲目。