Antagonism of a zinc metalloprotease using a unique metal-chelating scaffold: tropolones as inhibitors of P. aeruginosa elastase.

Antagonism of a zinc metalloprotease using a unique metal-chelating scaffold: tropolones as inhibitors of P. aeruginosa elastase.
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DOI:
10.1039/c3cc41191e
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发表时间:
2013-04-21
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Cohen SM
Cohen SM
中科院分区:
其他
文献类型:
--
作者:
Fullagar JL;Garner AL;Struss AK;Day JA;Martin DP;Yu J;Cai X;Janda KD;Cohen SM

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从螯合片段库(CFL)的筛选中发现了环庚三烯酚酮作为锌离子依赖性毒力因子铜绿假单胞菌弹性蛋白酶(LasB)的抑制剂。基于该初始命中,制备了一系列取代的基于托酚酮的LasB抑制剂,并鉴定了在体外和细菌群集测定中显示有效活性的化合物。重要的是,发现这种抑制剂对LasB的特异性超过其他金属酶,验证了环庚三烯酚酮作为鉴定一流LasB抑制剂的可行支架的用途。
Tropolone emerged from the screening of a chelator fragment library (CFL) as an inhibitor of the Zn2+-dependent virulence factor, Pseudomonas aeruginosa elastase (LasB). Based on this initial hit, a series of substituted tropolone-based LasB inhibitors was prepared, and a compound displaying potent activity in vitro and in a bacterial swarming assay was identified. Importantly, this inhibitor was found to be specific for LasB over other metalloenzymes, validating the usage of tropolone as a viable scaffold for identifying first-in-class LasB inhibitors.
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