Discovery and evaluation of new compounds targeting ribosomal protein S1 in antibiotic-resistant Mycobacterium Tuberculosis
作者:Yazhuang Dai、Yinqiu Xu、Chenyun Guo、Xiaowen Xue、Donghai Lin、Kejiang Lin
DOI:10.1016/j.ejmech.2020.112317
日期:2020.6
study, based on the structure of the RpsA C-terminal domain (RpsA-CTD) and POA complex, new compounds were designed. After being synthesized, the compounds were tested in vitro with saturation transfer difference (STD), fluorescence quenching titration (FQT) and chemical shift perturbation (CSP) experiments. Finally, six of the 17 new compounds have high affinity for both RpsA-CTD and its Ala438 deletion
耐药性结核分枝杆菌(Mtb)感染的出现迫使新的治疗策略成为可能,其中靶向转译是有前途的。在转译过程中,核糖体蛋白S1(RpsA)起关键作用,而Ala438突变体与吡嗪酰胺(PZA)抗性有关,这在水解为吡嗪酸(POA)后显示出其作用。在这项研究中,基于RpsA C末端结构域(RpsA-CTD)和POA配合物的结构,设计了新化合物。合成后,使用饱和转移差(STD),荧光猝灭滴定(FQT)和化学位移扰动(CSP)实验在体外测试化合物。最后,这17种新化合物中的6种对RpsA-CTD及其Ala438缺失突变体均具有高亲和力。