A Chemical Disruptor of the ClpX Chaperone Complex Attenuates the Virulence of Multidrug-Resistant <i>Staphylococcus aureus</i>
作者:Christian Fetzer、Vadim S. Korotkov、Robert Thänert、Kyu Myung Lee、Martin Neuenschwander、Jens Peter von Kries、Eva Medina、Stephan A. Sieber
DOI:10.1002/anie.201708454
日期:2017.12.4
production, which was quantified with a customized MS‐based assay platform. Transcriptome and whole‐proteome studies further confirmed the global reduction of virulence and revealed characteristic signatures of protein expression in the compound‐treated cells. Although these partially matched the pattern of ClpX knockout cells, further depletion of toxins was observed, leading to the intriguing perspective that
的金黄色葡萄球菌ClpXP蛋白酶是细胞稳态和毒力的重要调节剂。我们使用了针对ClpXP复合物的高通量筛选,并鉴定了破坏其低聚状态的ClpX分子伴侣的特异性抑制剂。34种衍生物的合成表明该分子支架对于多样化具有限制性,仅容许微小的变化。随后对最具活性的化合物进行分析,结果显示金黄色葡萄球菌的强烈衰减毒素的产生,通过定制的基于MS的测定平台进行定量。转录组和全蛋白质组研究进一步证实了毒力的整体降低,并揭示了化合物处理细胞中蛋白质表达的特征性特征。尽管这些与ClpX基因敲除细胞的模式部分匹配,但仍观察到毒素的进一步消耗,这引起了人们的兴趣,即小分子可能直接或间接地解决了额外的毒力途径。