arXiv:2506.17963q-bio.BMcs.AI2025-06被引 7

提出统一框架OmniESI,用条件深度学习精准预测酶底物互作。

OmniESI: A unified framework for enzyme-substrate interaction prediction with progressive conditional deep learning

  • 分两阶段渐进式建模,引入催化特异性条件网络
  • 在7个基准上超越现有方法,性能提升显著
  • 适用于酶动力学、突变效应等多任务,参数增益极小

理解与建模酶-底物相互作用对催化机制研究、酶工程和代谢工程至关重要。尽管已有大量预测方法出现,但它们未能融入酶催化先验知识,导致通用蛋白-分子特征与催化模式不匹配。为此,我们提出基于条件深度学习的两阶段渐进式框架OmniESI,用于酶-底物互作预测。通过将建模过程分解为两阶段渐进流程,OmniESI引入两个条件网络,分别强调酶促反应特异性和关键催化相关互作,实现从通用蛋白-分子域到催化感知域的潜在空间逐步特征调制。在此统一架构基础上,OmniESI可适配多种下游任务,包括酶动力学参数预测、酶-底物配对预测、酶突变效应预测及酶活性位点注释。在分布内与分布外设置下的多视角评估中,OmniESI在七个基准上持续优于当前最优专用方法。更重要的是,所提出的条件网络被证实内化了催化效率的基本模式,显著提升预测性能,而参数增加仅0.16%(消融实验验证)。总体而言,OmniESI代表了一种统一的酶-底物互作预测方法,为催化机制解析和酶工程提供了具有强泛化能力与广泛适用性的有效工具。

原文摘要 · Abstract (English)

Understanding and modeling enzyme-substrate interactions is crucial for catalytic mechanism research, enzyme engineering, and metabolic engineering. Although a large number of predictive methods have emerged, they do not incorporate prior knowledge of enzyme catalysis to rationally modulate general protein-molecule features that are misaligned with catalytic patterns. To address this issue, we introduce a two-stage progressive framework, OmniESI, for enzyme-substrate interaction prediction through conditional deep learning. By decomposing the modeling of enzyme-substrate interactions into a two-stage progressive process, OmniESI incorporates two conditional networks that respectively emphasize enzymatic reaction specificity and crucial catalysis-related interactions, facilitating a gradual feature modulation in the latent space from general protein-molecule domain to catalysis-aware domain. On top of this unified architecture, OmniESI can adapt to a variety of downstream tasks, including enzyme kinetic parameter prediction, enzyme-substrate pairing prediction, enzyme mutational effect prediction, and enzymatic active site annotation. Under the multi-perspective performance evaluation of in-distribution and out-of-distribution settings, OmniESI consistently delivered superior performance than state-of-the-art specialized methods across seven benchmarks. More importantly, the proposed conditional networks were shown to internalize the fundamental patterns of catalytic efficiency while significantly improving prediction performance, with only negligible parameter increases (0.16%), as demonstrated by ablation studies on key components. Overall, OmniESI represents a unified predictive approach for enzyme-substrate interactions, providing an effective tool for catalytic mechanism cracking and enzyme engineering with strong generalization and broad applicability.

酶工程蛋白质互作深度学习条件模型

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