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冠状病毒主要蛋白酶的结晶结构与非共价抑制剂X77复合在一起

Haihai Jiang¹, Wenwen Li², Xuelan Zhou²

¹School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University, Nanchang 330031, China.

International journal of biological macromolecules

|July 9, 2024

概括

抗病毒X77有效抑制多个冠状病毒主要蛋白酶 (M^pros),包括来自SARS-CoV-2变种的蛋白酶. 结构分析揭示了X7777的存在.

科学领域:

结构生物学结构生物学
病毒学病毒学
药物发现药物发现药物发现

背景情况:

冠状病毒具有保存的主要蛋白酶 (M^pros),对病毒复制至关重要.
M^pros是开发针对冠状病毒的广泛抗病毒药物的关键目标.
最初针对SARS-CoV开发的X77抑制剂显示出对SARS-CoV-2 M^pro的潜在作用.

研究的目的:

阐明X77对冠状病毒M^pros.的宽谱抑制背后的分子机制.
了解X77与来自SARS-CoV-2,SARS-CoV和MERS-CoV的M^pros的结合相互作用.
以X77架构为基础的新型泛冠状病毒抗病毒药物的合理设计为指导.

主要方法:

进行X射线晶体学以确定与X77.7结合的M^pros的结构.
分子动力学模拟以评估结合稳定性.
具有约束力的自由能量计算来量化抑制功效.

主要成果:

晶体结构揭示了X77与SARS-CoV-2,SARS-CoV和MERS-CoV M^pros的详细结合方式.
分析确定了不同冠状病毒M^pros的X77相互作用的关键结构决定因素.
分子模拟证实了X77的强烈抑制,并突出了跨变体结合的相似性/差异.

结论:

X77对包括SARS-CoV-2变种在内的多种冠状病毒M^pros具有广泛的疗效.
结构洞察力为设计下一代针对M^pros的抗病毒药物提供了基础.
X77作为开发泛冠状病毒疗法的宝贵支架.

关键词:

新冠病毒新冠病毒新冠病毒.晶体结构晶体结构抑制剂的抑制剂主要蛋白质酶的主要蛋白质酶.在X7777中使用.

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