稳定最小卷轴模拟器的有效策略
Michael G Wuo1, Andrew B Mahon1, Paramjit S Arora1
1Department of Chemistry, New York University , New York, New York 10003, United States.
Journal of the American Chemical Society
|September 5, 2015
概括
研究人员开发了一种利用共价键稳定卷状蛋白结构的新方法. 这一策略增强了生物医学应用中的蛋白-蛋白相互作用 (PPI) 调制.
科学领域:
- 蛋白质生物化学
- 结构生物学
- 生物分子工程
背景情况:
- 卷状线圈是通过多元化介导重要的生物功能的关键蛋白质图案.
- 针对线圈互动提供了重要的治疗潜力,但缺乏总体稳定策略.
- 稳定最小的螺旋束,特别是二极管,是控制这些相互作用的关键.
研究的目的:
- 开发可通用的方法来稳定短在定义的线圈形状.
- 设计稳定的二维线圈脚手架.
- 应用和完善原生蛋白与蛋白相互作用 (PPI) 的稳定策略.
主要方法:
- 研究稳定最小螺旋束的策略,最初专注于二维结构.
- 用共价键取代螺旋间的离子键,以创建稳定的二维支架.
- 引入了额外的约束,包括二硫化物键和链接器,以提高本地PPI的稳定性.
主要成果:
- 通过引入共价键成功设计了一种稳定的二维线圈脚手架.
- 证明了为了稳定更复杂的原生PPI,需要额外的约束 (二硫化物和链接键).
- 验证了一种新的卷轴稳定方法.
结论:
- 开发的方法为稳定卷轴结构提供了可通用的方法.
- 预计这种技术将促进蛋白质与蛋白质相互作用的新型调节剂的产生.
- 这些发现对药物发现和蛋白质工程有影响.
更多相关视频
13:02Production, Crystallization, and Structure Determination of the IKK-binding Domain of NEMO
Published on: December 28, 2019
8.0K
10:33Development of Inhibitors of Protein-protein Interactions through REPLACE: Application to the Design and Development Non-ATP Competitive CDK Inhibitors
Published on: October 26, 2015
11.9K
相关概念视频
Cooperative Allosteric Transitions
9.4K
Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
9.4K
Cooperative Allosteric Transitions
2.8K
2.8K
Protein Folding
12.6K
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
12.6K
Protein Folding
130.8K
Overview
130.8K
Molecular Chaperones and Protein Folding
20.9K
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
The...
20.9K
Conserved Binding Sites
5.3K
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...
5.3K
