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    • 8. 发明申请
    • Screening using polarization anisotropy in FRET emissions
    • 在FRET排放中使用偏振各向异性进行筛选
    • US20060234279A1
    • 2006-10-19
    • US11398496
    • 2006-04-04
    • Steven MillerPaul ComitaChristopher ShumateEvan Cromwell
    • Steven MillerPaul ComitaChristopher ShumateEvan Cromwell
    • C12Q1/68G01N33/53
    • G01N33/542G01N2500/00
    • Methods and apparatus are described for detecting specific binding between first and second chemical entities. The first chemical entity in association with a first fluorophore is immobilized. The second chemical entity is allowed to bind with the immobilized first chemical entity. The second chemical entity is or becomes coupled to a second fluorophore, which forms a FRET pair with the first fluorophore. The bound chemical entities are exposed to radiation at an excitation frequency for either the first or the second fluorophore, and polarization anisotropy of a FRET fluorescent signal from the bound chemical entities is measured to detect specific binding between the first and second chemical entities. Techniques are also disclosed for detecting whether a FRET interaction is occurring between a first chemical entity including a donor fluorophore and a second chemical entity including an acceptor fluorophore, using simultaneous anisotropy measurements at the wavelengths of the donor and acceptor fluorophores.
    • 描述了用于检测第一和第二化学实体之间的特异性结合的方法和装置。 与第一荧光团相关联的第一化学实体被固定化。 允许第二化学实体与固定化的第一化学实体结合。 第二化学实体是或连接到与第一荧光团形成FRET对的第二荧光团。 结合的化学实体以第一或第二荧光团的激发频率暴露于辐射,并且测量来自结合的化学实体的FRET荧光信号的偏振各向异性以检测第一和第二化学实体之间的特异性结合。 还公开了用于检测在包括供体荧光团的第一化学实体和包括受体荧光团的第二化学实体之间是否发生FRET相互作用的技术,其使用在供体和受体荧光团的波长处的同时各向异性测量。