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蛋白质突变效应的准确预测通过混合拓的自由能源协议加速

Lucien Koenekoop¹, Nadine van de Brug^1,2, Willem Jespers^3,4

¹Department of Cell & Molecular Biology, Uppsala University, Biomedical Center, Uppsala, Sweden.

Communications chemistry

|November 20, 2025

概括

QresFEP-2是一种新的,高效和准确的计算方法,用于预测蛋白质的突变效应. 这种基于物理学的方法有助于蛋白质工程,药物设计和理解遗传疾病的影响.

科学领域:

计算生物学是一种计算生物学.
生物物理学的生物物理.
蛋白质工程是一种蛋白质工程.

背景情况:

准确预测点突变效应对于药物设计和生物技术至关重要.
当前的计算方法在速度和准确性之间提供了不同的平衡.
自由能量扰动 (FEP) 模拟是用于蛋白质突变研究的广泛使用的基于物理的方法.

研究的目的:

为了引入QresFEP-2,一个新的混合拓FEP协议.
与现有方法相比,评估QresFEP-2的准确性和效率.
为了证明QresFEP-2在蛋白质稳定性,蛋白质-配体结合和蛋白质-蛋白质相互作用中的适用性.

主要方法:

开发了一种名为QresFEP-2的新型混合拓自由能量扰动 (FEP) 协议.
在10个蛋白质系统 (约600个突变) 的蛋白质稳定性变化大数据集上对QresFEP-2进行基准测试.
通过对Gβ1 B1域 (>400个突变) 进行全面的域范围突变发生的验证,并对GPCR-ligand和barnase-barstar相互作用进行测试.

主要成果:

与其他FEP协议相比,QresFEP-2显示出卓越的准确性和卓越的计算效率.
跨多种数据集进行强大的验证,包括蛋白质稳定性,蛋白质-连接体结合 (GPCR) 和蛋白质-蛋白质相互作用 (barnase/barstar).
成功应用于大规模的突变发生研究,如蛋白质域的系统扫描.

结论:

QresFEP-2提供了一个强大的,开源的,基于物理学的计算工具,用于预测突变效应.
该协议为蛋白质工程和药物设计提供了准确性和效率的最佳平衡.
QresFEP-2有助于更深入地了解突变对蛋白质功能和人类健康的影响.

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