Design, Synthesis and Biological Evaluation of a Library of Thiocarbazates and Their Activity as Cysteine Protease Inhibitors
作者:Zhuqing Liu、Michael C. Myers、Parag P. Shah、Mary Pat Beavers、Phillip A. Benedetti、Scott L. Diamond、Amos B. Smith,III、Donna M. Huryn
DOI:10.2174/138620710791054303
日期:2010.5.1
Recently, we identified a novel class of potent cathepsin L inhibitors, characterized by a thiocarbazate warhead. Given the potential of these compounds to inhibit other cysteine proteases, we designed and synthesized a library of thiocarbazates containing diversity elements at three positions. Biological characterization of this library for activity against a panel of proteases indicated a significant preference for members of the papain family of cysteine proteases over serine, metallo-, and certain classes of cysteine proteases, such as caspases. Several potent inhibitors of cathepsin L and S were identified. The SAR data were employed in docking studies in an effort to understand the structural elements required for cathepsin S inhibition. This study provides the basis for the design of highly potent and selective inhibitors of the papain family of cysteine proteases.
Crystal structure of dihydroneopterin aldolase from
Mycobacterium tuberculosis
associated with 8-mercaptoguanine, and development of novel S8-functionalized analogues as inhibitors: Synthesis, enzyme inhibition,
in vitro
toxicity and antitubercular activity
作者:Alexia de Matos Czeczot、Mauro Neves Muniz、Marcia Alberton Perelló、Éverton Edésio Dinis Silva、Luís Fernando Saraiva Macedo Timmers、Andresa Berger、Laura Calle Gonzalez、Guilherme Arraché Gonçalves、Sidnei Moura、Pablo Machado、Cristiano Valim Bizarro、Luiz Augusto Basso
DOI:10.1080/14756366.2024.2388207
日期:2024.12.31
The crystallographic structure of the FolB enzymefromMycobacterium tuberculosis (MtFolB), complexed with its inhibitor 8-mercaptoguanine (8-MG), was elucidated at a resolution of 1.95 Å. A novel ...