分子动力学模拟和MM-GBSA揭示了一种新型的小分子来对抗流感A型RNA依赖RNA聚合酶
Ahmed Samir1, Wael M Elshemey2, Abdo A Elfiky1
1Biophysics Department, Cairo University, Giza, Egypt.
Journal of biomolecular structure & dynamics
|December 13, 2023
概括
研究人员通过计算建模了流感A病毒聚合酶相互作用. 一种新型化合物ZINC66032798被确定为一种潜在的抑制剂,通过向RNA依赖RNA聚合酶中的保存活性位点.
科学领域:
- 病毒学 病毒学
- 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:
- 流感A病毒利用RNA依赖RNA聚合酶 (RdRps) 来进行复制.
- 人类聚合酶II的C端域 (CTD) 与病毒RdRp活性位点具有结构上的相似性.
- 向保存的活性部位残留物是抗病毒开发的战略.
研究的目的:
- 以计算方式研究流感A病毒聚合酶成分与人类聚合酶IICTD之间的相互作用.
- 为了确定潜在的抑制剂,向病毒RdRps.保存的活性部位残留物.
- 评估药理图书馆对流感A病毒RdRp.的疗效.
主要方法:
- 流感A病毒PA-CTD与人类聚合酶II heptad重复之间的相互作用的计算复制.
- 分子动力学模拟和分子对接以选药理学图书馆.
- 对已识别的化合物与病毒RdRp活性位点的结合 afinity 的分析.
主要成果:
- 一种化合物,ZINC66032798,在三个不同的流感A病毒RdRps中证明有效地与保存的活性部位残留结合.
- ZINC66032798显示,A型流感病毒与人类聚合酶II的结合亲和力显著下降 (47.9%,67.2%和28.0%).
- 该化合物的作用表明,该化合物通过与人类聚合酶IICTD结合竞争来潜在抑制.
结论:
- 在*in silico*分析中,ZINC66032798被确定为阻断流感A病毒RdRp的有希望的新型化合物.
- 这种化合物可能通过干扰病毒复制机制而起抗病毒作用.
- 需要进一步的湿实验室验证,以确认ZINC66032798对流感A病毒的抑制潜力.
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