动态-GLEP:一种基于动态的深度学习框架,用于在代表性A类GPCR中预测配体效率
Zhiyi Chen1,2, Yongxin Hao2,3, Yuhong Su4
1School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China.
Briefings in bioinformatics
|February 12, 2026
概括
动态-GLEP是一种新的计算框架,通过分析分子动力学,准确地预测G蛋白合受体 (GPCR) 的药物疗效. 这种方法通过捕捉功能选择性至关重要的结构变化来增强药物发现.
科学领域:
- 计算化学是一种计算化学.
- 药理学 药理学是指药理学的学科.
- 结构生物学是结构生物学.
背景情况:
- G蛋白结合受体 (GPCRs) 是关键的药物标,但除了结合亲和力之外,预测连接体的有效性仍然具有挑战性.
- 当前的计算方法往往无法捕捉影响GPCR功能选择性的结构动态.
- 了解连接体的疗效对于开发向治疗来说至关重要.
研究的目的:
- 引入Dynamic-GLEP,这是一个整合分子动力学和图形神经网络的框架,用于预测GPCR中的联体有效性.
- 开发一种方法,捕捉驱动功能选择性的依赖形状的相互作用.
- 为针对GPCRs的药物发现提供可靠和可解释的平台.
主要方法:
- 利用分子动力学 (MD) 来生成GPCR-连接体复合物的构造组合.
- 员工在等价图神经网络 (EquiScore模型) 上转移学习,以识别交互特征.
- 构建多形态复合体,以区分激励剂与非激励剂.
主要成果:
- 动态-GLEP为5-HT1A受体实现了0.74 (交叉验证) 和0.71 (FDA外部数据集) 的AUC.
- 基于Holo的模型在脚手架优化方面表现出色,而Apo衍生组合则表现出更好的适应性,能够更好地适应各种联结体.
- 观察到腺A2A受体的高性能 (AUC > 0.85),显示出强度和可转移性.
结论:
- 动态-GLEP提供了一个可靠和可解释的平台,用于预测A类GPCRs中的联结体疗效.
- 该框架有效地将构造动态集成到计算药物发现中.
- 动态GLEP在虚拟查,候选者优先排序和机制驱动的药物设计方面具有广泛的潜力.
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