FRET PROTEASE ASSAYS FOR CLOSTRIDIAL TOXINS
    7.
    发明申请
    FRET PROTEASE ASSAYS FOR CLOSTRIDIAL TOXINS 审中-公开
    用于封闭性毒素的FRET蛋白质测定

    公开(公告)号:US20080038756A1

    公开(公告)日:2008-02-14

    申请号:US11780925

    申请日:2007-07-20

    IPC分类号: G01N33/569 C07K14/33 C12Q1/04

    摘要: The present invention provides clostridial toxin substrates useful in assaying for the protease activity of any clostridial toxin, including botulinum toxins of all serotypes as well as tetanus toxins. A clostridial toxin substrate of the invention contains a donor fluorophore; an acceptor having an absorbance spectrum overlapping the emission spectrum of the donor fluorophore; and a clostridial toxin recognition sequence that includes a cleavage site, where the cleavage site intervenes between the donor fluorophore and the acceptor and where, under the appropriate conditions, resonance energy transfer is exhibited between the donor fluorophore and the acceptor.

    摘要翻译: 本发明提供了可用于测定任何梭菌毒素(包括所有血清型的肉毒毒素)以及破伤风毒素的蛋白酶活性的梭菌毒素底物。 本发明的梭菌毒素底物含有供体荧光团; 具有与供体荧光团的发射光谱重叠的吸收光谱的受体; 和梭菌毒素识别序列,其包括切割位点,其中切割位点插入供体荧光团和受体之间,并且在适当条件下,在供体荧光团和受体之间显示共振能量转移。