Novel non-peptidic vinylsulfones targeting the S2 and S3 subsites of parasite cysteine proteases
作者:Clifford Bryant、Iain D. Kerr、Moumita Debnath、Kenny K.H. Ang、Joseline Ratnam、Rafaela S. Ferreira、Priyadarshini Jaishankar、DongMei Zhao、Michelle R. Arkin、James H. McKerrow、Linda S. Brinen、Adam R. Renslo
DOI:10.1016/j.bmcl.2009.08.098
日期:2009.11
We describe here the identification of non-peptidic vinylsulfones that inhibit parasite cysteine proteases in vitro and inhibit the growth of Trypanosoma brucei brucei parasites in culture. A high resolution (1.75 angstrom) co-crystal structure of 8a bound to cruzain reveals how the non-peptidic P2/P3 moiety in such analogs bind the S2 and S3 subsites of the protease, effectively recapitulating important binding interactions present in more traditional peptide-based protease inhibitors and natural substrates. (c) 2009 Elsevier Ltd. All rights reserved.