一个工作流程来创建一个高质量的蛋白质 - 配体结合数据集用于训练,验证和预测任务
Yingze Wang1, Kunyang Sun1, Jie Li1
1Kenneth S. Pitzer Theory Center and Department of Chemistry.
ArXiv
|March 17, 2025
概括
这项研究揭示了PDBbind数据集中的结构文物,影响了评分函数 (SF) 的发展. 创建了一个新的工作流程,HiQBind-WF和数据集,HiQBind,以提高蛋白质 - 配体结合能量的预测精度.
科学领域:
- 计算化学是一种计算化学.
- 结构生物学是结构生物学.
- 药物发现 药物发现
背景情况:
- 评分函数 (SFs) 对于预测蛋白质-连接体结合能量至关重要.
- 高质量的结构和具有约束力的测试数据对于开发准确的SFs至关重要.
- 像PDBbind这样的现有数据集包含结构文物,可能会损害SF可靠性.
研究的目的:
- 识别和解决蛋白质 - 配体数据集中的结构文物.
- 为策划这些数据集开发一个半自动化工作流程 (HiQBind-WF).
- 创建一个新的,高质量的数据集 (HiQBind) 用于SF开发和验证.
主要方法:
- 开发了一系列用于半自动化策划工作流程 (HiQBind-WF) 的算法.
- 应用了HiQBind-WF来修复非共价蛋白质-配体数据集.
- 整合了来自BioLiP,Binding MOAD和BindingDB的绑定自由能源数据与PDB结构,以创建HiQBind.
主要成果:
- 在广泛使用的蛋白质 - 连接物数据集中确定了常见的结构文物.
- 证明了这些文物降低SFs的准确性和通用性的潜力.
- 成功创建了HiQBind数据集和工作流程,确保可重现性,并最大限度地减少人类干预.
结论:
- HiQBind-WF和HiQBind数据集为开发和测试SF提供了更可靠的资源.
- 解决数据质量问题对于推进蛋白质-配体结合能量的预测至关重要.
- HiQBind的开源性质促进了药物发现研究的透明度和协作.
相关概念视频
Ligand Binding Sites
12.6K
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...
12.6K
Protein-protein Interfaces
12.4K
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...
12.4K
Protein Networks
3.9K
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,...
3.9K
The Equilibrium Binding Constant and Binding Strength
12.7K
The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
12.7K
Conserved Binding Sites
4.1K
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...
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...
4.1K


