CholBindNet:可解释的神经网络用于胆固醇结合部位预测.
bioRxiv : the preprint server for biology
|January 9, 2026
概括
我们开发了CholBindNet,这是一种深度学习框架,用于预测膜蛋白上的胆固醇结合点. 这个工具准确地识别了结合部位,提供了与分子动力学模拟相似的见解.
科学领域:
- 生物化学 生物化学
- 计算生物学 计算生物学
- 结构生物学 结构生物学
背景情况:
- 胆固醇对于膜蛋白的功能至关重要,但预测其结合点是困难的.
- 现有的深度学习模型与膜蛋白扎,特别是与胆固醇结合.
研究的目的:
- 开发一个准确和高效的深度学习框架,用于预测跨膜蛋白质上的胆固醇结合点.
- 为计算密集的分子动力学模拟提供可扩展的替代方案.
主要方法:
- 精选了800多个高分辨率的跨膜蛋白质结构与胆固醇.
- 开发了CholBindNet,这是一个基于原子的深度学习框架,具有四个模型架构.
- 采用积极未标记 (PU) 培训策略来处理稀缺的负样本.
主要成果:
- CholBindNet显著优于现有的深度学习模型,用于对结合的预测.
- 该模型准确地排列了PIEZO2离子通道中的胆固醇结合位点 (强,中,弱),与分子动力学模拟相匹配.
- 通过原子级特征,Grad-CAM和注意力分析实现了高模型解释性.
结论:
- CholBindNet提供了一种高效且可扩展的方法,用于预测膜蛋白上的胆固醇结合点.
- 该框架提供了机械生物物理见解,有助于为膜蛋白点设计药物.
- 这项工作有助于研究膜蛋白中的脂质调节,并开发胆固醇调节的治疗方法.
更多相关视频
相关概念视频
Conserved Binding Sites
5.0K
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...
5.0K
Conserved Binding Sites
1.9K
1.9K
Ligand Binding Sites
14.9K
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...
14.9K
Ligand Binding Sites
8.6K
8.6K
Cholesterol: Significance and Regulation
1.2K
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
1.2K
Protein-protein Interfaces
14.4K
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...
14.4K


