Novel pseudopeptides incorporating a benzodiazepine-based turn mimetic—targeting Mycobacterium tuberculosis ribonucleotide reductase
作者:Johanna Nurbo、Daniel J. Ericsson、Ulrika Rosenström、Daniel Muthas、Anna M. Jansson、Gunnar Lindeberg、Torsten Unge、Anders Karlén
DOI:10.1016/j.bmc.2013.01.020
日期:2013.4
Peptides mimicking the C-terminus of the small subunit (R2) of Mycobacterium tuberculosis ribonucleotide reductase (RNR) can compete for binding to the large subunit (R1) and thus inhibit RNR activity. Moreover, it has been suggested that the binding of the R2 C-terminus is very similar in M. tuberculosis and Salmonella typhimurium. Based on modeling studies of a crystal structure of the holocomplex
模仿结核分枝杆菌核糖核苷酸还原酶(RNR)小亚基(R2)C端的肽可以竞争与大亚基(R1)的结合,从而抑制RNR活性。此外,已经提出R 2 C末端的结合在M中非常相似。肺结核和鼠伤寒沙门氏菌。基于对S的完整络合物晶体结构的建模研究。鼠伤寒酶,确定了一个基于苯并二氮杂turn的转模拟物,并合成了一组结合了苯并二氮杂sc骨架的新化合物。在竞争性荧光偏振测定法和RNR活性测定法中评价化合物。这些研究表明,结合了苯二氮卓骨架的化合物具有竞争M的能力。肺结核R2的结合位点具有低微摩尔亲和力。