基于分子表示构建的强大的机器学习框架预测CYP450抑制:朝着药物重定位的精度迈进
Sotiris Ouzounis1,2,3, Vasilis Panagiotopoulos2,3, Vivi Bafiti1
1Institute of Chemical Biology, National Hellenic Research Foundation, Athens, Greece.
Omics : a journal of integrative biology
|July 5, 2023
概括
预测人体细胞染色体P450 (CYP450) 酶的药物代谢是至关重要的. 这项研究开发了一种机器学习框架,使用分子对接来准确分类CYP450抑制剂,改善药物安全性和开发.
科学领域:
- 药理学 药理学是指药理学的学科.
- 计算化学计算化学
- 生物化学 生物化学
背景情况:
- 人类细胞染色体P450 (CYP450) 酶对药物代谢和药理动力学至关重要.
- 抑制CYP450可能会导致药物毒性,特别是在多药或同时使用的情况下.
- 准确预测CYP450抑制对于药物发现,开发和重新定位至关重要.
研究的目的:
- 开发一种机器学习框架,用于预测CYP450抑制.
- 为了对七种主要的人类肝脏CYP450异型进行抑制剂和非抑制剂的分类.
- 通过数字化转型增强药物发现的计算模型.
主要方法:
- 采用大多数投票的机器学习框架.
- 利用了从分子对接模拟中获得的交互指纹.
- 分析了不同化合物表示 (描述符,指纹,交互指纹) 对预测性能的影响.
主要成果:
- 开发了一个强大的机器学习框架,用于对CYP450抑制剂和非抑制剂进行分类.
- 证明了蛋白质 - 配体相互作用指纹的实用性,以提高预测准确度.
- 确定了酶结合部位结构对机器学习预测的影响.
结论:
- 开发的框架为CYP450抑制提供了更好的预测.
- 了解酶催化部位结构对于准确的机器学习预测至关重要.
- 需要强大的计算框架,以更好地了解药物开发决策.
相关概念视频
Drug Discovery: Overview
8.1K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
8.1K
Structure-Activity Relationships and Drug Design
789
Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence...
789
Predicting Reaction Outcomes
8.5K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
8.5K
Protein-protein Interfaces
12.6K
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...
12.6K
Ligand Binding Sites
12.9K
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...
12.9K
Protein-Drug Binding: Mechanism and Kinetics
630
Protein-drug binding refers to the interaction between drugs and proteins within the body. This binding process can occur intracellularly, involving drug interactions with enzymes or receptors within cells, or extracellularly, involving plasma proteins in the blood.
Various forces drive these interactions, including hydrogen bonds, hydrophobic interactions, ionic bonds, electrostatic interactions, and van der Waals forces. These bonds enable drugs to bind to specific sites on proteins,...
Various forces drive these interactions, including hydrogen bonds, hydrophobic interactions, ionic bonds, electrostatic interactions, and van der Waals forces. These bonds enable drugs to bind to specific sites on proteins,...
630


