SSR-DTA:用于药物标结合亲缘关系预测的子结构意识的多层图形神经网络
Yuansheng Liu1, Xinyan Xia2, Yongshun Gong3
1College of Computer Science and Electronic Engineering, Hunan University, Changsha, 410086, Hunan, China; Key Laboratory of Intelligent Computing & Signal Processing of Ministry of Education, Anhui University, Hefei, 230601, Anhui, China.
新型人工智能模型SSR-DTA通过有效提取分子亚结构和整合蛋白质序列和结构数据来增强药物标结合亲和力 (DTA) 预测. 这种方法显著提高了预测准确度,减少了错误,并帮助药物发现.
科学领域:
- 计算化学和药物发现.
- 化学信息学中的人工智能.
- 生物信息学和结构生物学.
背景情况:
- 准确的药物标结合亲和力 (DTA) 预测对于有效的药物发现至关重要.
- 目前的图形神经网络 (GNN) 难以提取不同大小的亚结构特征并集成蛋白质结构信息.
- 基于蛋白质标的序列模型缺乏必要的结构上下文.
研究的目的:
- 开发一个先进的AI模型,SSR-DTA,用于更准确的DTA预测.
- 克服跨多种分子尺度的特征提取的局限性,并集成多模式蛋白质数据.
- 提高药物发现管道中DTA预测的稳定性和准确性.
主要方法:
- 介绍SSR-DTA,这是一个多层图形网络,旨在在不同的分子尺度上进行可适应的特征提取.
- 整合BiGNN同时处理蛋白质序列 (初级结构) 和基于图的结构 (三级结构) 信息.
- 在四个基准DTA数据集上进行严格的实验验证.
主要成果:
- 与现有最先进的模型相比,SSR-DTA表现出优越的性能.
- 在戴维斯数据集中实现了20%的平均平方误差减少,在KIBA数据集中减少了5%.
- 该模型有效地捕捉了更丰富的生物特征,并整合了序列和结构数据,以提高预测.
结论:
- 通过解决以前的GNN和基于序列的方法的局限性,SSR-DTA为DTA预测提供了强大而准确的方法.
- 该模型能够处理多种结构大小和整合多模式数据的能力使其成为加速药物发现的宝贵工具.
- 通过改进对有效药物候选者的查,SSR-DTA显示了减少劳动力和财务损失的巨大潜力.
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