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对天然化合物的计算探索,以向金黄色葡萄球菌 (Staphylococcus aureus):抑制抗菌干预的AgrA促进剂结合

Subhadip Saha¹, Monidipa Ghosh¹

¹Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, India.

Journal of biomolecular structure & dynamics

|August 14, 2023

概括

这项研究确定了通过向AgrA蛋白来抑制金黄色葡萄球菌毒性的天然化合物. 分子建模和模拟揭示了稳定的结合,为这种病原体提供了潜在的新抗病毒策略.

科学领域:

微生物学微生物学
计算化学的计算化学
药物发现药物发现药物发现

背景情况:

黄金葡萄球菌 (Staphylococcus aureus) 是一种危险的与医疗保健相关的病原体,会引起严重的感染.
该AgrA反应调节器控制黄金葡萄球菌毒性因子的产生.
向AgrA提供了一种打击黄金色杆菌感染的策略.

研究的目的:

确定抑制AgrADNA结合的天然化合物.
在S. aureus中抑制病毒性基因表达.
开发新的抗病毒剂. 开发新的抗病毒剂.

主要方法:

为AgrA.A.生成了一种药模型.
选了ZINC天然产品数据库.
进行了分子对接和200 ns分子动力学模拟.
分析了蛋白质的稳定性和动态 (RMSD,Rg,PCA,吉布斯自由能量).

主要成果:

入围的三种天然化合物 (ZINC000077269178,ZINC000051012304,ZINC000004266026) 与AgrA的DNA结合域有很高的亲和力.
分子动力学模拟证实了蛋白质的稳定性和紧性在带结合后.
连接物结合减少了蛋白质原子的运动,并影响了能量格局.

结论:

确定了有前途的天然化合物作为S. aureus AgrA.的潜在抑制剂.
通过计算分析证明了这些化合物的稳定性和有效性.
这些发现为开发针对S. aureus的新抗病毒疗法铺平了道路.

关键词:

虚拟选是一个虚拟的选.分子对接的分子对接.分子动力学模拟模拟自然化合物自然化合物毒性因素是毒性的因素.

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