分子动力学和电子结构的洞察力,对克洛洛昆,奎尔塞丁和醇素与HPV-16 E2蛋白结合的洞察力
Raha Osailan1, Talaat Habeeb1, Mohammed A H Khalafalla2
1Department of Biology, College of Science, Taibah University, Yanbu Governorate, Saudi Arabia.
The Journal of steroid biochemistry and molecular biology
|November 17, 2025
概括
克洛洛昆,奎尔丁和黄素等小分子与人乳头瘤病毒16型 (HPV-16) E2蛋白结合. 这种结合可能会通过改变E2蛋白功能来破坏病毒DNA复制.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 计算化学是一种计算化学.
背景情况:
- 人类乳头瘤病毒16型 (HPV-16) E2蛋白对于病毒DNA复制至关重要.
- 具有抗病毒性能的小型生物相容分子可能通过与E2蛋白相互作用来抑制HPV-16.
研究的目的:
- 为了研究HPV-16 E2蛋白与三种小分子:克洛洛昆,奎尔塞丁和氨酸之间的分子相互作用.
- 评估联结对E2蛋白的动态和功能的影响.
主要方法:
- 100纳秒的分子动力学模拟.
- 电子结构计算.电子结构计算.
- 蛋白质运动的分析 (RMSD,Rg,RMSF).
- 分子力学/Poisson-Boltzmann表面积 (MM/PBSA) 用于结合亲和度的估计.
主要成果:
- HPV-16 E2 蛋白在结合联体后保持稳定.
- 带结合诱导了DNA结合和功能区域附近残留物灵活性的变化.
- 这三种连接体 (克洛洛昆,奎尔塞丁,黄素) 都在E2.2的关键功能区域附近定位.
- 奎尔丁表现出最强的估计结合亲和力.
- 配体表现出类似的电子特性 (HOMO-LUMO值,反应性描述符).
结论:
- 诺基因,奎尔塞丁和黄素可以稳定地与HPV-16 E2蛋白结合.
- 这些配体具有调节E2蛋白功能的潜力,特别是与DNA复制相关的功能.
- 这些发现表明,通过准E2蛋白,可能对HPV-16产生协同作用的抗病毒效应.
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