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arXiv 2402.05856q-bio.BMcs.LG
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结构信息增强的蛋白质语言模型

Structure-Informed Protein Language Model

Mila - Québec AI Institute(米拉-魁北克人工智能研究所);Université de Montréal(蒙特利尔大学);IBM Research(IBM研究院);HEC Montréal(蒙特利尔高等商学院);CIFAR(加拿大高级研究所)

Zuobai Zhang, Jiarui Lu, Vijil Chenthamarakshan, Aurélie Lozano, Payel Das, Jian Tang

AI总结:

该研究提出通过远程同源检测将结构信息融入蛋白质语言模型,无需显式结构输入,提升EC编号和GO术语预测的注释准确性,并强调目标属性与结构关系的重要性。

摘要:

蛋白质语言模型通过在大型蛋白质序列数据集上进行预训练,是学习蛋白质表示的有力工具。然而,传统的蛋白质语言模型缺乏显式的结构监督,尽管结构信息与蛋白质功能密切相关。为解决这一问题,我们引入远程同源检测技术,将结构信息蒸馏到蛋白质语言模型中,而无需输入显式的蛋白质结构。我们评估了这种结构信息增强训练对下游蛋白质功能预测任务的影响。实验结果显示,在EC编号和GO术语预测的功能注释准确性方面有一致的提升。然而,在突变数据集上的表现取决于目标属性与蛋白质结构之间的关系。这强调了在将结构感知训练应用于蛋白质功能预测任务时考虑这种关系的重要性。代码和模型权重可在 https://github.com/DeepGraphLearning/esm-s 获取。

英文摘要:

Protein language models are a powerful tool for learning protein representations through pre-training on vast protein sequence datasets. However, traditional protein language models lack explicit structural supervision, despite its relevance to protein function. To address this issue, we introduce the integration of remote homology detection to distill structural information into protein language models without requiring explicit protein structures as input. We evaluate the impact of this structure-informed training on downstream protein function prediction tasks. Experimental results reveal consistent improvements in function annotation accuracy for EC number and GO term prediction. Performance on mutant datasets, however, varies based on the relationship between targeted properties and protein structures. This underscores the importance of considering this relationship when applying structure-aware training to protein function prediction tasks. Code and model weights are available at https://github.com/DeepGraphLearning/esm-s.

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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