具有蛋白质 - 连接体类亲缘关系的宿主 - 客群:计算分析和设计
Sarvin Moghaddam1, Yoshihisa Inoue, Michael K Gilson
1Center for Advanced Research in Biotechnology, University of Maryland Biotechnology Institute, 9600 Gudelsky Drive, Rockville, Maryland 20850, USA.
Journal of the American Chemical Society
|January 13, 2009
概括
研究人员发现,具有非极性核和电离子群的分子与库库比图里尔 (CB[7]) 结合得很强. 计算研究证实了这些高度的亲和力,并预测了新的双循环[2.2.2] 度连接体的类似结合.
科学领域:
- 超分子化学 超分子化学
- 计算化学的计算化学
- 主机和客人的化学反应
背景情况:
- 黄瓜[7]uril (CB[7]) 宏循环在水中表现出强烈的宿主-客人复杂化.
- 具有非极性核心和阴离子替代物的客体对CB表现出异常高的结合亲和力[7].
- 了解这些互动背后的驱动力对于设计新的宿主-客户系统至关重要.
研究的目的:
- 为了研究规范特定客体与黄瓜结合的高亲和力结合的物理原理[7]uril.
- 通过计算评估一系列新的潜在的黄素[7]uril配体.
- 阐明静电学和配置在宿主-客人复合中的作用.
主要方法:
- 采用了Mining Minima算法进行计算分析.
- 模拟了基于铁素的客体与黄素[7]uril和β-cyclodextrin的结合.
- 设计并进行计算测试的新型双循环[2.2.2] 八度基联体.
主要成果:
- 计算结果准确地复制了对铁素-客的亲和关系的实验观测.
- 该研究为静电学和配置的贡献提供了一个统一的视角.
- 采矿Minimama预测,新设计的CB的双循环[2.2.2] 八度联体具有超高的结合亲和力[7].
结论:
- 静电学和配置是高亲和度宿主-客结合与甲[7]uril.uril.uril.uril.uril.uril.uril.uril.uril.uril.uril.uril.uril.uril.uril的关键决定因素.
- 计算方法验证了新的高亲缘关系联体的设计策略.
- 预计新型双环[2.2.2]化合物会表现出强烈的与黄素[7]uril的结合,类似于铁素衍生物.
相关概念视频
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...
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-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...
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...


