Novel bivalent inhibitors with sub-nanomolar affinities towards human glyoxalase I
作者:Yankui Sang、Qing Shi、Mingguang Mo、Caixia Ni、Zonghe Li、Bichong Liu、Qishan Deng、Donald J. Creighton、Zhe-Bin Zheng
DOI:10.1016/j.bmcl.2015.08.055
日期:2015.11
The zinc metalloenzyme glyoxalase I (GlxI) catalyzes the glutathione-dependent inactivation of cytotoxic methylglyoxal. Two competitive bivalent GlxI inhibitors, polyBHG2-62 (Ki = 1.0 nM) and polyBHG2-54 (Ki = 0.3 nM), were synthesized based on the transition-state analog S-(N-bromophenyl-N-hydroxycarbamoyl) glutathione (BHG). The most effective inhibitor, polyBHG2-54, is the first subnanomolar inhibitor
锌金属酶乙二醛酶I(GlxI)催化谷胱甘肽依赖性细胞毒性甲基乙二醛的失活。两个竞争性的二价GlxI抑制剂,polyBHG2-62(ķ我 = 1.0纳米)和polyBHG2-54(ķ我 = 0.3纳米),合成基于所述过渡态类似物小号- (Ñ -bromophenyl- Ñ -hydroxycarbamoyl)谷胱甘肽( BHG)。最有效的抑制剂polyBHG2-54是GlxI的第一个纳摩尔分子抑制剂,效力比BHG本身高50倍以上。