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Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
Published on: July 25, 2013
在球状蛋白中的残余二极合的动态解释的无模型方法
J Meiler1, J J Prompers, W Peti
1Institut für Organische Chemie, Universität Frankfurt, Marie-Curie-Strasse 11, D-60439 Frankfurt am Main, Germany.
Journal of the American Chemical Society
|June 21, 2001
概括
蛋白质的内部运动会影响液晶中的残余二极合. 分子动力学模拟揭示了这些运动如何影响对齐张量和双极向量方向,用于生物分子分析.
科学领域:
- 生物物理学的生物物理.
- 结构生物学 结构生物学
- 计算化学计算化学
背景情况:
- 剩余二极合 (RDCs) 提供了关于蛋白质的有价值的结构信息.
- 蛋白质动态可以影响RDC数据的解释.
- 了解这些影响对于准确的生物分子结构确定至关重要.
研究的目的:
- 分析内部蛋白质运动对液晶介质中RDC的影响.
- 开发一种从RDC数据中提取运动相关信息的方法.
- 为分析生物分子动态提供一种无模型的方法.
主要方法:
- 10个小时的分子动力学 (MD) 模拟ubiquitin.
- 为各种对齐张量计算MD平均二极合的计算.
- 在有效对齐张量和矢量分布方面解释合.
主要成果:
- MD模拟量化了内部运动对RDC的影响.
- 通过比较RDC和放松数据缩放,可以得出分析关系.
- 确定有效对齐张量和重定向向量的分布.
结论:
- 内部运动在部分对齐的蛋白质中显著影响RDC.
- 呈现的自相一致的程序允许在没有模型的情况下提取运动方面.
- 这种方法可以通过RDCs增强生物分子的结构和动态分析.
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