抗感染化合物的重新定位对抗水病毒核心氨酸蛋白酶:一个分子动力学研究
Ali A Rabaan1,2,3, Fatimah S Alshahrani4,5, Mohammed Garout6
1Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, 31311, Dhahran, Saudi Arabia. ali.rabaan@jhah.com.
Molecular diversity
|April 23, 2024
概括
这项研究使用in silico方法选了1395种化合物,以确定水病毒 (MPXV) 核心氨酸蛋白酶 (CCP) 的潜在抑制剂. 两种化合物,SC75741和氨基甘油酸盐,显示稳定的结合和潜在的抑制活性对MPXV-CCP.
科学领域:
- 生物化学 生物化学
- 计算生物学 计算生物学
- 病毒学 病毒学
背景情况:
- 病毒 (MPXV) 构成了严重的公共卫生威胁.
- MPXV核心氨酸蛋白酶 (CCP) 是抗病毒开发的关键药物标.
- 识别MPXV-CCP的新型抑制剂对于开发有效治疗方法至关重要.
研究的目的:
- 使用in silico方法选一种抗感染化合物的库,以确定MPXV-CCP的潜在抑制剂.
- 通过分子对接和模拟来评估已识别的化合物与MPXV-CCP的结合亲和力和稳定性.
- 报告化合物对MPXV-CCP的潜在抑制活性.
主要方法:
- 针对MPXV-CCP的1395种抗感染化合物的in silico选.
- 基于对接分数 (≤ -9.5 kcal/mol) 的排名最高的化合物的详尽分子对接.
- 分子动力学 (MD) 模拟和MM/GBSA结合性自由能量计算用于稳定性和结合强度的评估.
主要成果:
- 两种化合物SC75741和氨基甘油酸盐被确定为具有稳定的复合形成的顶级命中物 (RMSD分别为0.18 nm和0.23 nm).
- 根据MM/GBSA的计算,这些化合物具有显著的结合强度,ΔGTOTAL范围为-21.59至-15kcal/mol.
- 鉴定的化合物显示出潜在的竞争性抑制本土基质与MPXV-CCP的结合.
结论:
- SC75741和氨基甘油酸是MPXV-CCP抑制的有希望的候选者.
- 这些化合物可以作为分子,用于开发针对水的新型抗病毒疗法.
- 在形方法是有效的识别潜在的药物候选人针对病毒目标,如MPXV-CCP.
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