改进MM/P(G) BSA方法:整合公式为改进有约束力的自由能量计算
Lina Dong1, Pengfei Li2, Binju Wang1
1State Key Laboratory of Physical Chemistry of Solid Surfaces and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering and Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen University, Xiamen, P. R. China.
Journal of computational chemistry
|April 8, 2025
概括
本研究介绍了分子力学/Poisson-Boltzmann通用化Born表面积 (MM/P(G) BSA) 方法的公式计算. 这种方法可以在不增加计算成本的情况下增强生物系统中具有约束力的自由能量预测.
科学领域:
- 计算化学是一种计算化学.
- 分子建模分子建模
- 生物物理学的生物物理.
背景情况:
- 分子力学/Poisson-Boltzmann通用化Born表面积 (MM/P(G) BSA) 方法对于估计结合的自由能量至关重要.
- 计算贡献的传统方法,如正常模式分析 (NMA),在计算上昂贵,并且经常被遗漏.
- 准确的结合性自由能量计算对于药物发现和理解生物相互作用至关重要.
研究的目的:
- 开发和整合一个计算效率高的公式计算到MM/P(G) BSA方法.
- 提高生物系统中具有约束力的自由能量估计的准确性.
- 为各种应用提供实用和优化的MM/P(G) BSA方法.
主要方法:
- 开发了一种基于溶剂可访问的表面积和连接体可旋转键的公式计算.
- 将这个公式纳入标准的MM/PBSA和MM/GBSA工作流.
- 与各种数据集对比增强的MM/P(G) BSA方法,分析分散项的影响.
主要成果:
- 配方的整合系统地提高了MM/PBSA和MM/GBSA的性能.
- 包括分散项显示混合效应,有时会恶化相关性,但减少根平均平方误差 (RMSE).
- 结合公式和排除分散的MM/PBSA_S方法在多个数据集中显示出卓越的性能.
结论:
- 公式提供了一种计算上便宜但有效的方法来提高MM/P的准确性.
- 开发的MM/PBSA_S方法为优化具有约束力的自由能量计算提供了有价值的工具.
- 这项工作为MM/P(G) BSA提供了实际的增强,以便在计算生物学和药物设计中广泛使用.
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