一个用于组装复杂和异质结构的计算工具箱
Agnese I Curatolo1, Ofer Kimchi2, Carl P Goodrich3
1School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
Nature communications
|December 14, 2023
概括
预测软物质的自我组装是具有挑战性的. 本研究引入了一种使用自动差异化的新计算方法,以准确计算复杂构件 (包括蛋白质和合物) 的组装产量.
科学领域:
- 软物质物理学 软物质物理学
- 生物物理学的生物物理.
- 计算化学是一种计算化学.
背景情况:
- 复杂结构从不相同的构建块自组装在软物质和生物系统中至关重要.
- 预测平衡组装产量是很困难的,因为的贡献和竞争的配置,特别是对于具有旋转自由度的积木.
研究的目的:
- 开发一种计算方法,用于预测随意构建块的自组装产量,包括具有旋转自由的构建块.
- 克服现有方法的局限性,这些方法主要适用于球形对称的构建块.
主要方法:
- 结合了经典的统计力学与自动区分计算工具.
- 自动差异化使得平衡平均值在复杂的配置上能够有效地评估.
- 根据分子动力学模拟验证的框架.
主要成果:
- 成功计算了任意构建块的平衡组装产量,包括蛋白质和体颗粒.
- 证明了对已知蛋白质复合物的产量曲线的准确预测.
- 应用该方法来建模合体外的组装.
结论:
- 开发的框架为预测复杂系统的自组装产量提供了一种高效准确的方法.
- 这种方法将自组装的可预测性扩展到具有非球形和旋转移动构件的系统.
- 允许精确计算的收益率曲线,用于材料科学和生物学中的各种应用.
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