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    • 8. 发明公开
    • MUTANT PROTEASE BIOSENSORS WITH ENHANCED DETECTION CHARACTERISTICS
    • MUTANTE PROTEASE-BIOSENSOREN MIT VERBESSERTEN ERKENNUNGSEIGENSCHAFTEN
    • EP2990479A1
    • 2016-03-02
    • EP15189725.3
    • 2011-05-11
    • Promega Corporation
    • Binkowski, BrockButler, BraedenEncell, Lance P.Fan, FrankHook, BradOtto, PaulVidugiris, GediminasWigdal, SusanZimmerman, Kristopher
    • C12N9/02C12Q1/66A61K49/00C12Q1/37A01K67/027C12N5/00C12N15/00
    • A61K49/0045A01K67/0275A61K49/0013C12N9/0069C12Q1/37C12Q1/66C12Y113/12007
    • The invention relates to methods of detecting the presence or activity of a target molecule in a sample comprising a) contacting the sample with i) a polynucleotide encoding a biosensor polypeptide comprising a modified circularly-permuted thermostable luciferase and a linker linking the C-terminal portion of the thermostable luciferase to the N-terminal portion of the thermostable luciferase, the modified circularly-permuted thermostable luciferase modified relative to a parental circularly-permuted thermostable luciferase, the linker comprising a sensor region capable of interacting with a target molecule in a cell, and wherein the modified circularly-permuted thermostable luciferase has an enhanced response after interaction of the biosensor with the target molecule relative to at least one of: A) the parental circularly-permuted thermostable luciferase in the presence of the target molecule, or B) the modified circularly-permuted thermostable luciferase in the absence of the target molecule; and ii) a substrate for the modified thermostable luciferase; and b) detecting luminescence in the sample.
    • 本发明涉及检测样品中靶分子的存在或活性的方法,其包括:a)使样品与i)编码包含修饰的环状置换的热稳定荧光素酶的生物传感器多肽的多核苷酸和连接C末端部分的接头 所述热稳定荧光素酶相对于亲本循环置换的热稳定性荧光素酶修饰的经修饰的环状置换的热稳定荧光素酶,所述连接体包含能够与细胞中的靶分子相互作用的传感器区, 并且其中所述经修饰的环状置换的热稳定性荧光素酶相对于所述生物传感器与所述靶分子相互作用之后相对于以下至少一种具有增强的响应:A)所述亲本循环置换的热稳定性荧光素酶在所述靶分子的存在下,或B) 在没有靶标的情况下修饰的环状置换的热稳定性荧光素酶 分子; 和ii)用于修饰的热稳定荧光素酶的底物; 和b)检测样品中的发光。