探索SARS-CoV-2 RBD与haCE2结合的破坏
Camryn Carter1, Justin Airas1, Haley Gladden1
1Department of Chemistry, Gottwald Center for the Sciences, University of Richmond, Richmond, VA, United States.
Frontiers in chemistry
|November 13, 2023
概括
研究人员选了针对SARS-CoV-2受体结合域 (RBD) 和人类ACE2 (hACE2) 接口的药物. 福西诺普里尔作为一种抑制剂显示出希望,但利西尼诺普里尔形成了一个稳定的复合物,突出了需要考虑药物发现中的所有蛋白质合作伙伴的需要.
科学领域:
- * 计算机药物发现和分子建模.
- *病毒学和传染病研究.
- * 生物化学和分子动力学模拟.
背景情况:
- *COVID-19大流行是由SARS-CoV-2引起的,该病毒通过其受体结合域 (RBD) 与人类ACE2 (hACE2) 受体之间的相互作用感染细胞.
- *现有的药物查往往只关注RBD,忽视了关键的RBD-hACE2接口.
- *全面分析需要评估与RBD和haCE2的药物相互作用.
研究的目的:
- * 选针对RBD-hACE2接口的潜在候选药物.
- * 通过分子动力学模拟来评估所选配体的结合特性和抑制潜力.
- *阐明控制RBD-hACE2结合和抑制的原子相互作用.
主要方法:
- *对ACE抑制剂和已知的SARS-CoV-2抑制剂进行查,以确定它们与RBD-hACE2接口结合.
- *对6种选择的配体 (西诺普里尔,西诺普里拉,西诺普里尔,利西诺普里尔,埃莫丁,迪卡瓦福索尔,物理) 进行500nS无约束分子动力学 (MD) 模拟.
- *使用MM-GBSA,结合和对分解分析来评估结合亲和力和相互作用.
主要成果:
- *所有六个测试的配体都在RBD-hACE2接口上表现出有利的结合,抑制了相互作用.
- * 福西诺普利尔,福西诺普利特和利西诺普利尔在模拟中形成了稳定的三元复合体 (RBD-药物-hACE2).
- * 福西诺普利尔对RBD表现出最强的抑制作用,而利西诺普利尔稳定了三复合体,认为它不太理想.
结论:
- * 该研究确定了关键的原子相互作用,对RBD-hACE2结合至关重要.
- * 福西诺普利尔已成为抑制SARS-CoV-2进入的有希望的候选者.
- *这些发现强调了在所有相互作用的蛋白质合作伙伴的背景下评估候选药物的重要性,以便进行准确的评估.
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