大型巢 motif 的左撇子形状的内在倾向性从分子动力学推断出来
Subhankar Sahu1, Raja Banerjee1, Debnath Pal2
1Department of Biotechnology, Maulana Abul Kalam Azad University of Technology, Haringhata, West Bengal, India.
Journal of biomolecular structure & dynamics
|July 19, 2023
概括
巢穴的图案是巢穴的图案.
科学领域:
- 生物化学 生物化学
- 结构生物学 结构生物学
- 计算生物学 计算生物学
背景情况:
- 巢基因在蛋白质中的功能作用依赖于连接体结合,其几何度有助于这种结合.
- 这种凸性是由不太受欢迎的左侧形状 (L状态) 实现的,这对于稳定的结合相互作用至关重要.
研究的目的:
- 为了调查Nest图案中L状态扭曲的持续发生.
- 了解序列如何影响L状态形态的采用和稳定性.
主要方法:
- 对35种六余Nest的0.5μs分子动力学 (MD) 模拟轨迹的分析.
- 检查形状稳定性和序列特定的残留物对扭转角度的影响.
主要成果:
- 在60%的分析中,初始L状态构造在模拟时间的40%以上持续存在.
- 具有不同组成的巢序采用了特定的构造状态,受邻近L状态残留的影响.
- 短的二次结构和氨基酸重复的存在表明进化保存和倾向于L状态扭曲.
结论:
- 对于稳定Nest图案的结构和功能来说,L状态构造是必不可少的.
- 这些发现阐明了序列结构功能范式,有助于合理设计基于的治疗方法.
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