MULTI-CHAIN EUKARYOTIC DISPLAY VECTORS AND USES THEREOF
    28.
    发明公开
    MULTI-CHAIN EUKARYOTIC DISPLAY VECTORS AND USES THEREOF 有权
    多链真核展示载体及其应用

    公开(公告)号:EP1438400A1

    公开(公告)日:2004-07-21

    申请号:EP02766425.9

    申请日:2002-09-30

    申请人: Dyax Corp.

    IPC分类号: C12N15/00

    摘要: 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 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.

    ENTEROKINASE CLEAVAGE SEQUENCES AND THEIR USE
    29.
    发明公开
    ENTEROKINASE CLEAVAGE SEQUENCES AND THEIR USE 审中-公开
    肠激酶切割SEQUENZE及其用途

    公开(公告)号:EP1326882A2

    公开(公告)日:2003-07-16

    申请号:EP01946519.4

    申请日:2001-06-19

    申请人: Dyax Corp.

    CPC分类号: C07K7/06

    摘要: Novel enterokinase cleavage sequences are provided. Also disclosed are methods for the rapid isolation of a protein of interest present in a fusion protein construct including a novel enterokinase cleavage sequence of the present invention and a ligand recognition sequence for capturing the fusion construct on a solid substrate. Preferred embodiments of the present invention show rates of cleavage up to thirty times that of the known enterokinase cleavage substrate (Asp)4-Lys-Ile.