具有特征性的结合模式的SARS-CoV-2主要蛋白酶抑制剂的新型设计
Yan Zhu1, Jiaolong Meng2, Bo Feng3
1Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital, Shenzhen 518112, China.
Structure (London, England : 1993)
|June 26, 2024
概括
使用基于结构的设计开发了针对SARS-CoV-2主要蛋白酶 (Mpro) 的新型抑制剂. 这些抑制剂通过独特的共价相互作用来破坏病毒复制,显示出治疗COVID-19的潜力.
科学领域:
- 生物化学 生物化学
- 药物发现 药物发现 药物发现
- 结构生物学 结构生物学
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 导致COVID-19,需要有效的抗病毒策略.
- SARS-CoV-2 主蛋白酶 (Mpro) 对于病毒复制至关重要,并作为关键药物标.
- 现有的COVID-19治疗方法需要补充抗病毒药物.
研究的目的:
- 设计和合成针对SARS-CoV-2主要蛋白酶 (Mpro) 的新型抑制剂.
- 研究这些化合物对SARS-CoV-2 Mpro的抑制潜力在体外.
- 阐明抑制剂与Mpro活性部位的结合机制.
主要方法:
- 基于结构的药物设计方法使用高分辨率的结构数据.
- 针对Mpro的新化学实体的De novo设计.
- 试验室测试用于评估设计化合物的抑制活性.
- 结晶学测定与Mpro.的抑制剂的结合方式.
主要成果:
- 鉴定出了一系列具有针对SARS-CoV-2 Mpro强烈体外活性的新型抑制剂.
- 高分辨率结构揭示了抑制剂和催化氨酸 (Cys145) 之间的共价键形成.
- 这些抑制剂具有双甲基 (DBMK) 弹头和战略位置的基,破坏了催化二.
结论:
- 开发的抑制剂代表了对COVID-19治疗的有前途的新类共价Mpro抑制剂.
- 独特的结合模式为设计抗SARS-CoV-2和其他病原体的囊蛋白酶抑制剂提供了宝贵的见解.
- 这项研究为进一步开发针对Mpro的抗病毒疗法提供了基础.
相关概念视频
Structure-Activity Relationships and Drug Design
697
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...
697
Protein-protein Interfaces
12.5K
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...
12.5K
Ligand Binding and Linkage
4.8K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.8K
Conserved Binding Sites
4.2K
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...
4.2K
Enzymes
81.4K
Inside living organisms, enzymes act as catalysts for many biochemical reactions involved in cellular metabolism. The role of enzymes is to reduce the activation energies of biochemical reactions by forming complexes with its substrates. The lowering of activation energies favor an increase in the rates of biochemical reactions.
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...
81.4K
Induced-fit Model
80.7K
Most chemical reactions in cells require enzymes—biological catalysts that speed up the reaction without being consumed or permanently changed. They reduce the activation energy needed to convert the reactants into products. Enzymes are proteins, that usually work by binding to a substrate—a reactant molecule that they act upon.
Enzymes exhibit substrate specificity, meaning that they can only bind to certain substrates. This is mainly determined by the shape and chemical...
Enzymes exhibit substrate specificity, meaning that they can only bind to certain substrates. This is mainly determined by the shape and chemical...
80.7K


