美国国立卫生研究院分子探针ML283的类似物是强大的SARS-CoV-2酶抑制剂
David N Frick1, Robert V Bavisotto1, Nicholas C Hopper1
1Department of Chemistry & Biochemistry, The University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53217, United States.
ACS chemical biology
|February 6, 2025
概括
型肝炎病毒 (HCV) 螺旋酶抑制剂ML283及其类型显示出SARS-CoV-2 nsp13螺旋酶的强烈抑制. 这一发现表明,针对SARS-CoV-2的抗病毒药物开发有潜在的新途径.
科学领域:
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
- 生物化学 生物化学
背景情况:
- 美国国立卫生研究院开发了ML283作为一种选择性抑制C型肝炎病毒 (HCV) 酶的抑制剂.
- 计算建模表明ML283可能会抑制SARS-CoV-2非结构蛋白13 (nsp13) 酶.
研究的目的:
- 调查ML283及其类型对SARS-CoV-2 nsp13酶活性的抑制作用.
- 为了探索针对SARS-CoV-2直酶用于抗病毒药物开发的潜力.
主要方法:
- 在使用AutoDock Vina进行in silico建模以预测绑定.
- 测量nsp13催化ATP水解的生物化学测定.
- 开发和应用一种基于分子信标的新型螺旋酶测定方法.
主要成果:
- ML283和几个类似物显示出对SARS-CoV-2 nsp13螺旋酶活性的强烈抑制.
- 最初的测定显示了一些ebselen类型的适度效应,但不是ML283.
- ML283类型的强度与分子建模中预测的结合能相关.
结论:
- ML283及其类似物是SARS-CoV-2 nsp13螺旋酶的有效抑制剂.
- 卡基终端nsp13 RecA 样酶电机域是抗病毒药物开发的潜在目标.
- 这项研究强调了HCV酶抑制剂对SARS-CoV-2的重用潜力.
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