Dockformer用Transformer高效精准预测药物分子结合构象,适合大规模虚拟筛选。
Dockformer: A transformer-based molecular docking paradigm for large-scale virtual screening
- 基于Transformer融合多模态信息,端到端生成分子结合构象与置信度。
- 在PDBbind和PoseBusters上成功率分别达90.53%和82.71%,推理速度提升百倍以上。
- 适用于新冠主蛋白酶抑制剂等真实药物研发场景,兼具精度与效率。
分子对接是药物研发的关键步骤,可用于化合物库的虚拟筛选以发现靶向特定蛋白质的潜在配体。然而,传统对接模型的计算复杂度随化合物库规模增大而显著上升。近年来,深度学习算法为数据驱动的研发提供了新路径,但多数模型在筛选性能上仍难以超越传统方法。为此,本文提出一种新型深度学习对接方法Dockformer,该方法利用多模态信息捕捉分子的几何拓扑与结构知识,可端到端直接生成结合构象及对应置信度。实验表明,Dockformer在PDBbind核心集和PoseBusters基准上的成功率分别达到90.53%和82.71%,推理速度提升超过100倍,优于几乎所有当前最优对接方法。此外,在真实世界虚拟筛选中,其成功识别出冠状病毒主蛋白酶抑制剂。鉴于其高精度与高效率,Dockformer可被视为药物设计领域的强大且稳健工具。
原文摘要 · Abstract (English)
Molecular docking is a crucial step in drug development, which enables the virtual screening of compound libraries to identify potential ligands that target proteins of interest. However, the computational complexity of traditional docking models increases as the size of the compound library increases. Recently, deep learning algorithms can provide data-driven research and development models to increase the speed of the docking process. Unfortunately, few models can achieve superior screening performance compared to that of traditional models. Therefore, a novel deep learning-based docking approach named Dockformer is introduced in this study. Dockformer leverages multimodal information to capture the geometric topology and structural knowledge of molecules and can directly generate binding conformations with the corresponding confidence measures in an end-to-end manner. The experimental results show that Dockformer achieves success rates of 90.53% and 82.71% on the PDBbind core set and PoseBusters benchmarks, respectively, and more than a 100-fold increase in the inference process speed, outperforming almost all state-of-the-art docking methods. In addition, the ability of Dockformer to identify the main protease inhibitors of coronaviruses is demonstrated in a real-world virtual screening scenario. Considering its high docking accuracy and screening efficiency, Dockformer can be regarded as a powerful and robust tool in the field of drug design.
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