Cmem Builder:在分子动力学模拟中用于曲面膜构造的自动化工具
Jiabin Guo1, Kin Lei1, Jixing Liu1
1Faculty of Applied Sciences, Macao Polytechnic University, Macao SAR 999078, China.
Journal of chemical theory and computation
|July 28, 2025
概括
Cmem Builder是一个新的Web服务器,可以自动创建用于分子动力学模拟的曲面膜模型. 它准确地产生复杂的膜几何和蛋白质相互作用,帮助研究膜曲率.
科学领域:
- 生物物理学的生物物理.
- 计算生物学 计算生物学
- 结构生物学 结构生物学
背景情况:
- 膜曲率对于细胞过程至关重要,如内细胞分裂和机械转导.
- 分子动力学 (MD) 模拟为曲膜系统提供了原子学的洞察力.
- 现有的工具缺乏全面的支持来生成定义的曲面膜几何形状,并集成蛋白质特定的曲率数据.
研究的目的:
- 开发一个用户友好的网络服务器,Cmem Builder,用于自动生成曲脂质膜和膜蛋白复合体.
- 为了使粗粒度 (CG) MD模拟使用MARTINI力场,在曲的环境中准确的蛋白质脂质相互作用.
- 提供一个支持Z轴对称曲线形状的平台,OPM数据库衍生或定制的曲率配置文件,以及对脂质组成的详细控制.
主要方法:
- 开发了Cmem Builder,这是一个网络服务器,用于CG MD模拟的自动曲面膜生成.
- 实现Z轴对称性用于曲的膜形状.
- 集成的OPM数据库用于蛋白质曲率和允许自定义几何输入.
- 嵌入式几何采样用于精确的脂质放置和控制脂质组成.
主要成果:
- 成功生成了涉及Piezo1和BAR蛋白的系统的曲面膜模型.
- 准确地模拟了具有不对称脂质组成的等离子体膜.
- 证明了Cmem Builder在创建复杂的膜结构中的准确性和效率.
- 验证了该工具在模拟曲率驱动现象和蛋白质膜相互作用方面的能力.
结论:
- Cmem Builder为研究研究曲膜系统的研究人员提供了一个强大的和可访问的平台.
- 该工具可方便在曲的环境中准确建模蛋白质-脂质相互作用.
- 自动生成复杂的膜几何形状,增强膜动态的研究.
- 在https://cmembuilder.com免费提供,促进科学界更广泛的可访问性.
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