基于天然产品的虚拟查识别了猫科冠状病毒3CLpro的潜在抑制剂
Zunyun Jiang1, Hongyi Chen1, Wang Xiong1
1Jiangsu Key Laboratory of Pesticide Science, College of Sciences, Nanjing Agricultural University, Nanjing 210095, P.R. China.
Current topics in medicinal chemistry
|January 23, 2026
概括
这项研究选了天然化合物,以寻找新抗病毒药物治疗猫类传染性周周炎 (FIP). 八种化合物对猫科冠状病毒 (FCoV) 3CLpro酶表现出稳定的结合,这表明药物开发的潜力.
科学领域:
- 兽医病毒学 兽医病毒学
- 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:
- 猫传染性腹膜炎 (FIP) 是一种由猫冠状病毒 (FCoV) 引起的致命疾病.
- 自然产品虚拟查是识别FCoV抗病毒剂的有希望的策略.
- 准FCoV 3C样蛋白酶 (3CLpro) 是抗病毒开发的一个关键策略.
研究的目的:
- 使用基于结构的计算方法发现FCoV 3CLpro的潜在抑制剂.
- 为了识别具有高结合亲和力和稳定性对FCoV 3CLpro.的天然化合物.
- 为针对FCoV.CoV的结构导向药物设计提供基础.
主要方法:
- 从ZINC数据库中选96,677种自然化合物,使用分子对接.
- 根据ADMET属性和绑定姿势分析,对初始命中进行了改进.
- 分子动力学模拟和有约束力的自由能量计算,以进一步评估.
主要成果:
- 14种化合物表现出与FCoV 3CLpro.的稳定相互作用和最小的结构变化.
- 关键残留物 (His162,Glu165,Cys144) 被确定为稳定蛋白质 - 连接体复合物的关键.
- 八种化合物在500纳秒的模拟中保持了稳定的结合配置,具有高结合自由能量.
结论:
- 这些已识别的化合物显示出作为FCoV感染的抗病毒导体的巨大潜力.
- 发现了特定的分子框架,为设计新型FCoV 3CLpro抑制剂提供了基础.
- 这项研究为针对FCoV的结构导向药物发现工作奠定了基础.
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