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arXiv 2209.13014q-bio.BMcs.AIcs.LGq-bio.MN
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整体-局部相互作用模型预测蛋白质-配体结合亲和力

Predicting Protein-Ligand Binding Affinity via Joint Global-Local Interaction Modeling

Renmin University of China(中国人民大学);DP Technology(深势科技)

Yang Zhang, Gengmo Zhou, Zhewei Wei, Hongteng Xu

摘要:

蛋白质-配体结合亲和力的预测对于药物研究中发现先导化合物具有重要意义。面对这一挑战性任务,现有的预测方法大多依赖于分子的拓扑和/或空间结构以及局部相互作用,而忽略了蛋白质和配体之间的多层次分子间相互作用,这往往导致性能不佳。为了解决这个问题,我们提出了一种新的全局-局部相互作用(GLI)框架来预测蛋白质-配体结合亲和力。特别地,我们的GLI框架考虑了蛋白质和配体之间的分子间相互作用,这不仅涉及封闭原子之间的高能短程相互作用,而且还涉及非键合原子之间的低能长程相互作用。对于每一对蛋白质和配体,我们的GLI嵌入全球的长程相互作用和聚集本地短程相互作用,分别。这种全局-局部联合交互建模策略有助于提高预测精度,并且整个框架与各种基于神经网络的模块兼容。实验表明,我们的GLI框架优于国家的最先进的方法,简单的神经网络架构和适度的计算成本。

英文摘要:

The prediction of protein-ligand binding affinity is of great significance for discovering lead compounds in drug research. Facing this challenging task, most existing prediction methods rely on the topological and/or spatial structure of molecules and the local interactions while ignoring the multi-level inter-molecular interactions between proteins and ligands, which often lead to sub-optimal performance. To solve this issue, we propose a novel global-local interaction (GLI) framework to predict protein-ligand binding affinity. In particular, our GLI framework considers the inter-molecular interactions between proteins and ligands, which involve not only the high-energy short-range interactions between closed atoms but also the low-energy long-range interactions between non-bonded atoms. For each pair of protein and ligand, our GLI embeds the long-range interactions globally and aggregates local short-range interactions, respectively. Such a joint global-local interaction modeling strategy helps to improve prediction accuracy, and the whole framework is compatible with various neural network-based modules. Experiments demonstrate that our GLI framework outperforms state-of-the-art methods with simple neural network architectures and moderate computational costs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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