[EN] FLUORESCENCE DETECTION OF CYSTEINE AND HOMOCYSTEINE<br/>[FR] DÉTECTION DE FLUORESCENCE DE CYSTÉINE ET D'HOMOCYSTÉINE
申请人:OREGON STATE
公开号:WO2013019978A1
公开(公告)日:2013-02-07
Embodiments of probes for selectively detecting compounds having a thiol group and an amino group, e.g., cysteine and/or homocysteine, are disclosed, along with methods and kits for detecting the compounds in neutral media with the probes. The probes have a structure according to the general formula where R1 - R4 independently are hydrogen hydroxyl, halogen, thiol, thioether, lower aliphatic, or lower alkoxy, x is an integer from 0 to 4, and each R5 independently is halogen, hydroxyl, thiol, thioether, lower aliphatic, or lower alkoxy. Embodiments of the disclosed probes are capable of undergoing condensation/cyclization reactions with cysteine and/or homocysteine. Cysteine and/or homocysteine can be selectively detected and identified by determining fluorescence emission of the probes at characteristic wavelengths.
揭示了用于选择性检测具有巯基和氨基(例如半胱氨酸和/或同型半胱氨酸)的化合物的探针的实施例,以及用于在中性介质中使用这些探针检测这些化合物的方法和试剂盒。这些探针具有根据通用公式的结构,其中R1 - R4独立地是氢氧化物、卤素、巯基、硫醚、较低的脂肪基或较低的烷氧基,x是从0到4的整数,每个R5独立地是卤素、氢氧化物、巯基、硫醚、较低的脂肪基或较低的烷氧基。所述的探针的实施例能够与半胱氨酸和/或同型半胱氨酸发生缩合/环化反应。通过确定探针在特征波长处的荧光发射,可以选择性地检测和识别半胱氨酸和/或同型半胱氨酸。