首页> 美国卫生研究院文献>Journal of Enzyme Inhibition and Medicinal Chemistry >Seeking new approach for therapeutic treatment of cholera disease via inhibition of bacterial carbonic anhydrases: experimental and theoretical studies for sixteen benzenesulfonamide derivatives
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Seeking new approach for therapeutic treatment of cholera disease via inhibition of bacterial carbonic anhydrases: experimental and theoretical studies for sixteen benzenesulfonamide derivatives

机译:寻求通过抑制细菌碳酸酐酶治疗霍乱疾病的新方法:十六种苯磺酰胺衍生物的实验和理论研究

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摘要

A series of sixteen benzenesulfonamide derivatives has been synthesised and tested as inhibitors of Vibrio cholerae carbonic anhydrase (CA) enzymes, belonging to α-CA, β-CA, and γ-CA classes (VchCAα, VchCAβ, and VchCAγ). The determined Ki values were compared to those of selected human CA isoforms (hCA I and hCA II). Structure-affinity relationship analysis highlighted that all tested compounds proved to be active inhibitors of VchCAα at nanomolar concentration. The VchCAβ activity was lower to respect inhibitory efficacy toward VchCAα, whereas, these benzenesulfonamide derivatives failed to inhibit VchCAγ. Interestingly, compound >7e combined the best activity toward VchCAα and VchCAβ. In order to obtain a model for binding mode of our inhibitors toward bacterial CAs, we carried out docking simulations by using the available crystal structures of VchCAβ.
机译:合成并测试了一系列十六种苯磺酰胺衍生物,作为霍乱弧菌碳酸酐酶(CA)酶的抑制剂,属于α-CA,β-CA和γ-CA类(VchCAα,VchCAβ和VchCAγ)。将确定的Ki值与选定的人CA亚型(hCA I和hCA II)的Ki值进行比较。结构亲和关系分析强调,所有测试的化合物在纳摩尔浓度下均被证明是VchCAα的活性抑制剂。 VchCAβ活性较低,以至于对VchCAα具有抑制作用,而这些苯磺酰胺衍生物不能抑制VchCAγ。有趣的是,化合物> 7e 结合了对VchCAα和VchCAβ的最佳活性。为了获得抑制剂与细菌CAs结合模式的模型,我们使用VchCAβ的可用晶体结构进行了对接模拟。

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