配对EGRET:通过图形注意力网络和蛋白质语言模型增强蛋白质-蛋白质相互作用位点的预测
Ramisa Alam1, Sazan Mahbub1,2, Md Shamsuzzoha Bayzid1
1Department of Computer Science and Engineering, Bangladesh University of Engineering and Technology, Dhaka 1205, Bangladesh.
Bioinformatics (Oxford, England)
|October 3, 2024
概括
预测蛋白质与蛋白质相互作用 (PPI) 位点对于理解生物功能至关重要. Pair-EGRET是一个新的图表注意力网络,使用蛋白质结构数据准确地识别这些位点,并提供可解释的结果.
科学领域:
- 计算生物学 计算生物学
- 生物信息学是一种生物信息学.
- 结构生物学 结构生物学
背景情况:
- 蛋白与蛋白相互作用 (PPI) 是生物过程的基础.
- 准确预测PPI地点是必不可少的,但具有挑战性.
- 用于PPI地点识别的实验方法昂贵且耗时.
研究的目的:
- 开发一种用于准确预测蛋白质与蛋白质相互作用地点的计算工具.
- 为了利用先进的深度学习技术来增强PPI站点预测.
- 为蛋白质与蛋白质结合的机制提供可解释的见解.
主要方法:
- 开发了Pair-EGRET,一个边缘聚合图表注意力网络.
- 利用k-近邻图来表示蛋白质的3D结构.
- 采用交叉注意力机制和预训练的变压器模型的特征.
主要成果:
- Pair-EGRET在不同实验数据集中预测PPI位置方面取得了显著的表现.
- 该模型在识别蛋白质对的界面残留物方面表现出准确性.
- 学习的交叉注意力矩阵为PPI位置预测提供了可解释的见解.
结论:
- 配对EGRET为PPI站点预测提供了一种强大而准确的计算方法.
- 该模型的可解释性提高了对蛋白质相互作用机制的理解.
- 配对EGRET代表了生物信息学工具研究蛋白质相互作用的重大进步.
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相关概念视频
Ligand Binding Sites
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-protein Interfaces
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Conserved Binding Sites
Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally analyses the...
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally analyses the...
Protein Networks
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein-Protein Interfaces
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein Networks
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
