An enzyme-triggered turn-on fluorescent probe based on carboxylate-induced detachment of a fluorescence quencher
作者:Masahiro Oe、Koji Miki、Kouichi Ohe
DOI:10.1039/d0ob00899k
日期:——
We developed a new class of turn-on fluorescent probes for an esterase. After the esterase-mediated hydrolysis produced carboxylate (as a fluorescence activator), the fluorescence intensity was markedly increased through the detachment of a quencher moiety from the quenched Cy5 fluorophore. Because the probes based on this new activator-induced quencher-detachment (AiQd) adopt a non-immolative linker
我们为酯酶开发了一类新的开启荧光探针。在酯酶介导的水解产生羧酸盐(作为荧光激活剂)后,荧光强度通过从猝灭的 Cy5 荧光团中分离出来的猝灭剂部分显着增加。由于基于这种新型激活剂诱导的猝灭剂分离 (AiQd) 的探针在可切割位点和荧光团之间采用了非牺牲接头,因此酶促反应的速率大大提高,而不会产生任何副产物。