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    • 3. 发明申请
    • LDL RECEPTOR SIGNALING ASSAYS
    • 低密度脂蛋白受体信号测定
    • WO2003031973A1
    • 2003-04-17
    • PCT/US2002/032271
    • 2002-10-10
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    • HERZ, JoachimMAY, Petra
    • G01N33/53
    • C12Q1/37G01N33/92
    • The invention provides methods and compositions for modeling and detecting LDL receptor transmembrane signaling by detecting proteolysis of an LDL receptor transmembrane domain. The method comprises the steps of: a) providing a sample comprising a cell membrane comprising (I) a polypeptide comprising an LDL receptor transmembrane domain fused to a C-terminal tail, and (ii) a protease which specifically cleaves the domain and thereby releases the tail from the membrane; b) incubating the sample under conditions wherein the protease cleaves the domain and thereby releases the tail from the membrane; and c) detecting a resultant released tail.
    • 本发明提供了通过检测LDL受体跨膜结构域的蛋白水解来建模和检测LDL受体跨膜信号的方法和组合物。 该方法包括以下步骤:a)提供包含细胞膜的样品,所述样品包含(I)包含与C末端尾部融合的LDL受体跨膜结构域的多肽,和(ii)特异性切割结构域并由此释放的蛋白酶 从膜的尾巴; b)在其中蛋白酶切割结构域并从而从膜释放尾部的条件下孵育样品; 和c)检测产生的释放尾巴。