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相关概念视频

The Electron Transport Chain01:30

The Electron Transport Chain

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The electron transport chain or oxidative phosphorylation is an exothermic process in which free energy released during electron transfer reactions is coupled to ATP synthesis. This process is a significant source of energy in aerobic cells, and therefore inhibitors of the electron transport chain can be detrimental to the cell's metabolic processes.
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
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相关实验视频

Updated: Mar 7, 2026

Rapid in-silico Battery Electrolyte Electrochemical Reaction Generation using 3T-VASP Multi-Scale Energy Minimization
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计算生物化学的快速和强大的ESP和RESP收费:开源GPU实现

Vikrant Tripathy1, Etienne Palos2, Kenneth M Merz3,4

  • 1San Diego Supercomputer Center, University of California San Diego, La Jolla, California 92093, United States.

Journal of chemical information and modeling
|March 6, 2026
PubMed
概括
此摘要是机器生成的。

我们开发了一种新的GPU加速方法来计算静电电位 (ESP) 电荷,实现了显著的加速度和强大的分子电荷计算. 这种方法增强了力场的分子建模和参数化.

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科学领域:

  • 计算化学计算化学
  • 分子建模分子建模
  • 高性能计算 高性能计算

背景情况:

  • 精确的部分电荷对于分子模拟和力场参数化至关重要.
  • 传统的静电电位 (ESP) 电荷计算可能对分子方向和电网密度敏感.
  • 现有的方法往往缺乏对大规模应用的稳定性和效率.

研究的目的:

  • 在图形处理单元 (GPU) 上实施高效的初始静电电位 (ESP) 计算.
  • 引入一种新型的部分电荷方案,能够抵御分子导向.
  • 为了实现超密集网格ESP计算,提高准确性和可靠性.

主要方法:

  • 在GPU上使用量子交互计算内核 (QUICK) 代码实现ESP计算.
  • 开发重新加权的RESP (rwRESP) 收费方案,以克服对网格点号的敏感性.
  • 性能分析比较GPU和CPU计算时间.
  • 对分子方向的电荷强度的验证.

主要成果:

  • 在ESP计算时间中,单个数据中心GPU的性能优于128个CPU核心.
  • 超高速网格ESP计算 (∼20000点/原子) 实现了方向独立性.
  • 新的rwRESP收费方案证明了对分子导向和电网密度的稳定性.
  • QUICK与AmberTools的无集成可促进GAFF对非标准残留物的参数化.

结论:

  • 该GPU加速协议提供了高效和强大的分子电荷计算.
  • 这种方法促进了高通量参数化和GPU加速的极化QM/MM模拟.
  • 开发的协议是先进分子建模应用程序的基础步骤.