相关实验视频
Updated: May 10, 2026
16:41
A Protocol for Computer-Based Protein Structure and Function Prediction
Published on: November 3, 2011
统一的蛋白质-小分子图形神经网络用于结合部位预测
Jian Wang1, Nikolay V Dokholyan2,3
1Department of Neurology and Neuroscience, University of Virginia, School of Medicine, Charlottesville, VA 22903.
概括
一个新的图形神经网络YuelPocket准确地预测了蛋白质上的小分子结合点. 它甚至超越预测的蛋白质结构,帮助以结构为导向的药物发现.
科学领域:
- 计算生物学是一种计算生物学.
- 结构生物信息学 结构生物信息学
- 药物发现 药物发现
背景情况:
- 预测蛋白质上的小分子结合点对于药物发现至关重要,但仍然具有挑战性.
- 当前的图形神经网络方法通常依赖于有限的本地特征和小数据集,阻碍了远程交互的建模.
- AlphaFold3有先进的蛋白质结构预测,但识别功能结合口袋是一个单独的,未解决的问题.
研究的目的:
- 开发YuelPocket,一种新的图形神经网络 (GNN),用于准确预测蛋白质结合部位.
- 通过结合远程交互建模和对大规模数据的培训来解决现有GNN的局限性.
- 为在实验和预测蛋白质结构中识别连接体结合口袋提供一个强大的工具.
主要方法:
- 开发了YuelPocket,这是一个在残余级和坐标级预测模式下运行的图形神经网络.
- 在大规模的PLINDER数据集上训练了YuelPocket,该数据集包括各种蛋白质-连接体相互作用数据.
- 使用距离至最近的原子和中心至中心指标与最先进的方法对比,评估了YuelPocket.
主要成果:
- 与现有的最先进的方法相比,YuelPocket在绑定站点预测方面取得了更高的成功率.
- 在AlphaFold预测的蛋白质结构上表现出高精度和稳定性,即使与实验数据的偏差.
- 成功地识别了接触残留物,并精确地确定了高精度的口袋中心.
结论:
- 优尔口袋为识别蛋白质结合部位提供了一个强大而准确的框架.
- 该方法增强了功能注释,并促进了以结构为导向的药物发现,特别是预测蛋白质结构.
- 在大数据集和预测结构上的YuelPocket的性能代表了该领域的重大进步.
相关概念视频
02:40Ligand 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...
02:04Protein-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...
01:49Conserved 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...
02:40Ligand 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...
02:04Protein-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...
01:49Conserved 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...