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    • 10. 发明申请
    • SINGLE MOLECULE-FORMAT BIOLUMINESCENT PROBE
    • 单分子生物荧光探针
    • US20100273150A1
    • 2010-10-28
    • US12448881
    • 2008-01-15
    • Yoshio UmezawaMoritoshi SatoHiroaki TaoSungBae Kim
    • Yoshio UmezawaMoritoshi SatoHiroaki TaoSungBae Kim
    • C12Q1/68C07H21/04C12N15/63
    • G01N33/542
    • This application aims to provide a single molecule-format probe for detecting a target-specific ligand easily and accurately as an index of the presence or absence of a signal.The invention is a single molecule-format bioluminescent probe for detecting a target-specific ligand in a living cell, which comprises, a ligand-binding molecule of which conformation is changed upon binding to the ligand, and an N-terminal polypeptide (N-LE) and a C-terminal polypeptide (C-LE) of a luminescent enzyme (LE), which are linked to each end of the ligand-binding molecule, respectively, wherein the N-LE and the C-LE self-complement to generate a luminescent signal only upon binding of the ligand to the ligand-binding molecule. The ligand-binding molecule is a fusion molecule carrying a ligand-binding domain (LBD) and an LBD-interacting domain or peptide that interacts with the LBD upon binding of the ligand to the LBD.
    • 本申请旨在提供用于容易且准确地检测靶特异性配体的单分子格式探针作为信号存在或不存在的指标。 本发明是用于检测活细胞中的靶特异性配体的单分子形式的生物发光探针,其包含在与配体结合时构象改变的配体结合分子和N-末端多肽(N- LE)和分别与配体结合分子的每个末端连接的发光酶(LE)的C末端多肽(C-LE),其中N-LE和C-LE自身互补 只有当配体结合到配体结合分子时才产生发光信号。 配体结合分子是携带配体结合结构域(LBD)的融合分子和与配体结合到LBD时与LBD相互作用的LBD相互作用的结构域或肽。