Bis-diazo, triaryl and aryldiazo-N-arylphenazonium quencher moieties, substituted with electron-withdrawing and electron-donating substituents which induce polarity in the delocalized aryl/diazo ring systems, are useful as labels when attached to biomolecules such as polynucleotides, nucleosides, nucleotides and polypeptides. The quencher moieties are non-fluorescent and accept energy transfer from fluorescent reporter labels by any energy-transfer mechanism, such as FRET.
Fluorescence quencher compositions are useful in preparing quencher labeled biomolecules for various molecular biology assays based on fluorescence detection.
双重重氮基团、三芳基和芳基重氮-N-芳基
苯唑啉猝灭基团,通过在离域芳基/重氮环系统中引入电子受体和电子供体取代基,可以作为标签附加到
生物分子上,如多核苷酸、核苷、核苷酸和
多肽。这些猝灭基团是非荧光的,可以通过任何能量转移机制(例如FRET)从荧光报告标签接受能量转移。荧光猝灭剂组合物在制备标记
生物分子的过程中非常有用,用于各种基于荧光检测的
分子生物学测定。