评估用于抑制剂设计的螺旋状蛋白界面.
Brooke N Bullock1, Andrea L Jochim, Paramjit S Arora
1Department of Chemistry, New York University, New York, New York 10003, USA.
Journal of the American Chemical Society
|August 18, 2011
概括
本研究分析了螺旋蛋白界面,以指导蛋白与蛋白相互作用 (PPI) 的合成抑制剂的设计. 通过理解螺旋介导复杂形成,研究结果有助于开发新型治疗方法.
科学领域:
- 结构生物学是结构生物学.
- 药品化学 药品化学 是一个
- 计算生物学是一种计算生物学.
背景情况:
- 由α-螺旋体介导的蛋白-蛋白相互作用 (PPI) 在生物过程中至关重要.
- 为这些相互作用设计合成抑制剂仍然具有挑战性,因为对接口动态的理解有限.
- 现有的螺旋模仿剂尚未在生物应用中得到广泛采用.
研究的目的:
- 在蛋白质数据库中系统分析螺旋蛋白界面.
- 为了提供一个全面的概述,螺旋如何调解蛋白质复合体的形成.
- 引导针对PPI的新型合成抑制剂的合理设计.
主要方法:
- 来自蛋白质数据库 (PDB) 的螺旋蛋白界面的完整数据集的分析.
- 确定参与复杂形成的螺旋体的关键特征和相互作用模式.
- 对新发现的蛋白质复合物类的实验性评估.
主要成果:
- 描述各种螺旋式接口架构和交互模式.
- 识别可用药的口袋和螺旋模拟抑制剂的设计策略.
- 通过对新型复合体的实验性评估验证计算发现.
结论:
- 螺旋接口的系统分析为基于结构的药物设计提供了关键的见解.
- 这项工作弥合了螺旋模仿设计和其生物应用之间的差距.
- 这些发现有助于开发针对各种PPI的有针对性的合成抑制剂.
相关概念视频
Protein-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...
Protein-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...
Ligand 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...
Protein Networks
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,...
Conserved 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...


