Identification of a β1/β2-Specific Sulfonamide Proteasome Ligand by Crystallographic Screening
作者:Philipp Beck、Michèle Reboud-Ravaux、Michael Groll
DOI:10.1002/anie.201505054
日期:2015.9.14
The proteasome represents a validated drug target for the treatment of cancer, however, new types of inhibitors are required to tackle the development of resistant tumors. Current fluorescence‐based screening methods suffer from low sensitivity and are limited to the detection of ligands with conventional binding profiles. In response to these drawbacks, a crystallographic screening procedure for the
蛋白酶体代表治疗癌症的有效药物靶标,但是,需要新型抑制剂来应对耐药性肿瘤的发展。当前基于荧光的筛选方法灵敏度低,并且仅限于检测具有常规结合特征的配体。针对这些缺点,利用了结晶学筛选方法来发现具有新颖作用方式的试剂。经过优化的工作流程被用于筛选一组重点化合物,从而发现了一个β1/β2特异性磺酰胺衍生物,该衍生物在亚基β1和β2之间非共价结合。结合口袋在免疫和组成型蛋白酶体之间在大小和极性上显示出显着差异。