Lanthanide-based substrates and methods for determining clostridial toxin activity
    3.
    发明申请
    Lanthanide-based substrates and methods for determining clostridial toxin activity 审中-公开
    基于镧系元素的底物和确定梭菌毒素活性的方法

    公开(公告)号:US20060063221A1

    公开(公告)日:2006-03-23

    申请号:US10947071

    申请日:2004-09-21

    IPC分类号: C12Q1/37 C12N11/16

    摘要: The present invention provides a clostridial toxin substrate that contains (a) a lanthanide donor complex; (b) an acceptor having an absorbance spectrum overlapping the emission spectrum of the lanthanide donor complex; and (c) a clostridial toxin recognition sequence containing a cleavage site that intervenes between the lanthanide donor complex and the acceptor, where, under the appropriate conditions, resonance energy transfer is exhibited between the lanthanide donor complex and the acceptor.

    摘要翻译: 本发明提供了一种梭菌毒素底物,其含有(a)镧系元素供体复合物; (b)吸收光谱与镧系元素供体络合物的发射光谱重叠的受体; 和(c)含有介于镧系元素供体复合物和受体之间的切割位点的梭菌毒素识别序列,其中在合适的条件下,在镧系元素供体复合物和受体之间显示共振能量转移。

    Fluorescence polarization assays for determining clostridial toxin activity
    4.
    发明授权
    Fluorescence polarization assays for determining clostridial toxin activity 有权
    用于测定梭菌毒素活性的荧光偏振测定法

    公开(公告)号:US07399607B2

    公开(公告)日:2008-07-15

    申请号:US10948097

    申请日:2004-09-22

    IPC分类号: C12Q1/37 C12N11/16

    摘要: The present invention provides a method of determining the presence or activity of a clostridial toxin by (a) treating with a sample, under conditions suitable for clostridial toxin protease activity, a clostridial toxin substrate which includes a fluorophore; a bulking group; and a clostridial toxin recognition sequence containing a cleavage site that intervenes between the fluorophore and the bulking group; (b) exciting the fluorophore with plane polarized light; and (c) determining fluorescence polarization of the treated substrate relative to a control substrate, where a change in fluorescence polarization of the treated substrate as compared to fluorescence polarization of the control substrate is indicative of the presence or activity of the clostridial toxin.

    摘要翻译: 本发明提供一种通过(a)在适合于梭菌毒素蛋白酶活性的条件下用样品处理包括荧光团的梭菌毒素底物来确定梭菌毒素的存在或活性的方法; 一个胖胖的小组 和含有插入在荧光团和膨化基团之间的切割位点的梭菌毒素识别序列; (b)用平面偏振光激发荧光团; 和(c)确定经处理的底物相对于对照底物的荧光偏振,其中与对照底物的荧光偏振相比,经处理的底物的荧光偏振的变化指示梭菌毒素的存在或活性。

    Fluorescence polarization assays for determining clostridial toxin activity
    6.
    发明授权
    Fluorescence polarization assays for determining clostridial toxin activity 有权
    用于测定梭菌毒素活性的荧光偏振测定法

    公开(公告)号:US07674601B2

    公开(公告)日:2010-03-09

    申请号:US12125327

    申请日:2008-05-22

    IPC分类号: C12Q1/37 C12N11/16

    摘要: The present invention provides a method of determining the presence or activity of a clostridial toxin by (a) treating with a sample, under conditions suitable for clostridial toxin protease activity, a clostridial toxin substrate which includes a fluorophore; a bulking group; and a clostridial toxin recognition sequence containing a cleavage site that intervenes between the fluorophore and the bulking group; (b) exciting the fluorophore with plane polarized light; and (c) determining fluorescence polarization of the treated substrate relative to a control substrate, where a change in fluorescence polarization of the treated substrate as compared to fluorescence polarization of the control substrate is indicative of the presence or activity of the clostridial toxin.

    摘要翻译: 本发明提供一种通过(a)在适合于梭菌毒素蛋白酶活性的条件下用样品处理包括荧光团的梭菌毒素底物来确定梭菌毒素的存在或活性的方法; 一个胖胖的小组 和含有插入在荧光团和膨化基团之间的切割位点的梭菌毒素识别序列; (b)用平面偏振光激发荧光团; 和(c)确定经处理的底物相对于对照底物的荧光偏振,其中与对照底物的荧光偏振相比,经处理的底物的荧光偏振的变化指示梭菌毒素的存在或活性。

    Fluorescence polarization assays for determining clostridial toxin activity
    7.
    发明授权
    Fluorescence polarization assays for determining clostridial toxin activity 有权
    用于测定梭菌毒素活性的荧光偏振测定法

    公开(公告)号:US07638294B2

    公开(公告)日:2009-12-29

    申请号:US12124412

    申请日:2008-05-21

    IPC分类号: C12Q1/37 C12N11/16

    摘要: The present invention provides a method of determining the presence or activity of a clostridial toxin by (a) treating with a sample, under conditions suitable for clostridial toxin protease activity, a clostridial toxin substrate which includes a fluorophore; a bulking group; and a clostridial toxin recognition sequence containing a cleavage site that intervenes between the fluorophore and the bulking group; (b) exciting the fluorophore with plane polarized light; and (c) determining fluorescence polarization of the treated substrate relative to a control substrate, where a change in fluorescence polarization of the treated substrate as compared to fluorescence polarization of the control substrate is indicative of the presence or activity of the clostridial toxin.

    摘要翻译: 本发明提供一种通过(a)在适合于梭菌毒素蛋白酶活性的条件下用样品处理包括荧光团的梭菌毒素底物来确定梭菌毒素的存在或活性的方法; 一个胖胖的小组 和含有插入在荧光团和膨化基团之间的切割位点的梭菌毒素识别序列; (b)用平面偏振光激发荧光团; 和(c)确定经处理的底物相对于对照底物的荧光偏振,其中与对照底物的荧光偏振相比,经处理的底物的荧光偏振的变化指示梭菌毒素的存在或活性。