Steric-Free Bioorthogonal Labeling of Acetylation Substrates Based on a Fluorine–Thiol Displacement Reaction
作者:Zhigang Lyu、Yue Zhao、Zakey Yusuf Buuh、Nicole Gorman、Aaron R. Goldman、Md Shafiqul Islam、Hsin-Yao Tang、Rongsheng E. Wang
DOI:10.1021/jacs.0c05605
日期:2021.1.27
We have developed a novel bioorthogonal reaction that can selectively displace fluorine substitutions alpha to amide bonds. This fluorine-thiol displacement reaction (FTDR) allows for fluorinated cofactors or precursors to be utilized as chemical reporters, hijacking acetyltransferase-mediated acetylation both in vitro and in live cells, which cannot be achieved with azide- or alkyne-based chemical
我们开发了一种新型生物正交反应,可以选择性地将氟取代 α 键到酰胺键。这种氟-硫醇置换反应 (FTDR) 允许将氟化辅因子或前体用作化学报告基因,在体外和活细胞中劫持乙酰转移酶介导的乙酰化,这是基于叠氮化物或炔烃的化学报告基因无法实现的。使用 FTDR 可以将氟乙酰胺标记物进一步转换为生物素或荧光团标签,从而能够对乙酰基底物进行一般检测和成像。这种策略可能会导致底物蛋白的无空间标记平台,扩展我们的化学工具箱,以系统的方式对翻译后修饰进行功能注释。