包含瓦洛的蛋白质双-psi β-barrel域的综合计算表征:洞察结构稳定性,结合机制和进化意义
Amar Jeet Yadav1, Khushboo Bhagat1, Aditya K Padhi1
1Laboratory for Computational Biology & Biomolecular Design, School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
International journal of biological macromolecules
|November 20, 2024
概括
使用分子动力学探索了人类含瓦洛蛋白 (VCP) 双psiβ-barrel (DPBB) 域相互作用. 与其他生物体相比,人类VCP_DPBB域显示出与gp78的优越稳定性和结合亲和力.
科学领域:
- 生物化学和结构生物学
- 计算生物学和生物物理学
背景情况:
- 含有瓦洛的蛋白质 (VCP) 对细胞功能至关重要,但其人类双psiβ-barrel (DPBB) 域的机制和动态尚未研究.
- 目前对VCP_DPBB领域的研究主要来自非人类生物,这突显了对人类特定结构和功能洞察的需求.
研究的目的:
- 研究人类VCP_DPBB域的结构动态,稳定性和结合潜力.
- 阐明人类VCP_DPBB域与E3无素合酶的gp78的生物学功能和相互作用.
主要方法:
- 全原子分子动力学 (AAMD) 模拟来分析人类VCP_DPBB域的动力学和稳定性.
- 对氨基酸相互作用,折叠度,进化保存,可溶性和结晶性的计算评估.
- 蛋白质-接和分子动力学 (AAMD和CGMD) 研究人类VCP_DPBB-gp78复合体的形成和稳定性.
主要成果:
- 人类VCP_DPBB域表现出显著的结构动态和稳定性.
- 虽然*热质体酸性* VCP_DPBB-gp78显示出更强的初始结合,但人类VCP_DPBB-gp78复合体显示出增强的稳定性和结合亲和力.
- 人类VCP_DPBB-gp78复合物与其古老的对应物相比,具有更多的稳定相互作用.
结论:
- 人类VCP_DPBB域在进化上是保存的,并且具有功能意义.
- 这项研究为人类VCP_DPBB域在蛋白质-相互作用中的作用提供了关键的见解,特别是与gp78.
- 结果表明,通过准这些相互作用,对与VCP相关的疾病提出潜在的治疗策略.
关键词:
计算性表征的计算性表征.双-psi β-桶的双重-psi-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel-barrel分子对接是分子对接.分子动力学模拟模型蛋白质-的相互作用.稳定的稳定性 稳定的稳定性含有瓦洛的蛋白质.
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