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一种新型球状蛋白折叠的设计,精确度达到原子水平
Brian Kuhlman1, Gautam Dantas, Gregory C Ireton
1Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
概括
科学家们使用计算方法设计了一种新型蛋白质Top7,具有新的结构. 实验验证证证实Top7是折叠的,稳定的,并且与设计模型相匹配,为蛋白质工程开辟了新的可能性.
科学领域:
- * 计算生物学 计算生物学
- * * 结构生物学 结构生物学
- * 蛋白质工程是指蛋白质的工程.
背景情况:
- *设计具有特定三维结构的新型蛋白质是计算蛋白质设计中的一个重大挑战.
- * 现有的蛋白质仅限于自然发生的折叠,限制了对蛋白质宇宙的探索.
研究的目的:
- *使用计算方法设计一种具有前所未有的折叠的新型蛋白质.
- *通过实验验证设计的蛋白质的结构,稳定性和折叠.
主要方法:
- *采用计算策略,涉及代序列设计和结构预测.
- * 设计了一种93个残留的α/β蛋白,命名为Top7,具有新的序列和拓.
主要成果:
- * Top7经过实验证实是折叠的,并且非常稳定.
- *Top7的X射线晶体结构与计算设计模型 (RMSD为1.2 Å) 密切匹配.
结论:
- * 新蛋白质折叠的成功设计证明了计算策略的力量.
- * 这一突破使得以前未被观察到的蛋白质结构的探索成为可能,扩大了蛋白质工程的潜力.
相关概念视频
Protein Organization
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Protein Folding
Overview
Protein and Protein Structure
Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
A protein's shape is critical to its function. For example, an enzyme can...
Protein Folding
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...

