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相关概念视频

Molecular Shapes01:18

Molecular Shapes

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Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
Two regions of electron density in a diatomic...
61.1K

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相关实验视频

Updated: Jan 8, 2026

Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes
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Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes

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使用ShapeGMMM量化和采样生物分子组合的教程

Subarna Sasmal1, Martin McCullagh2, Glen M Hocky1,3

  • 1Department of Chemistry, New York University, New York, New York 10003, USA.

The Journal of chemical physics
|December 23, 2025
PubMed
概括
此摘要是机器生成的。

我们介绍了使用ShapeGMM进行生物分子构造分析的工作流. 该方法模拟了从原子波动中释放的能量,从而实现了增强的采样和精细的构造模型.

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RNA Secondary Structure Prediction Using High-throughput SHAPE
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Structure-Based Simulation and Sampling of Transcription Factor Protein Movements along DNA from Atomic-Scale Stepping to Coarse-Grained Diffusion
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Structure-Based Simulation and Sampling of Transcription Factor Protein Movements along DNA from Atomic-Scale Stepping to Coarse-Grained Diffusion

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RNA Secondary Structure Prediction Using High-throughput SHAPE
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科学领域:

  • 计算化学是一种计算化学.
  • 生物物理学的生物物理.
  • 统计力学就是统计力学.

背景情况:

  • 了解生物分子构造对于药物发现和蛋白质功能至关重要.
  • 现有的构造性采样方法可能是计算密集的,可能会错过重要的状态.

研究的目的:

  • 提供详细的工作流程,用于聚类和生物分子构造的增强采样.
  • 引入ShapeGMM方法论,用于建模自由能源景观.
  • 展示一个完整的管道,从模拟数据到精细的结构模型.

主要方法:

  • 形状GMM (形状高斯混合模型) 方法用于对形状的概率建模.
  • 均衡分子动力学模拟数据的分析.
  • 产生反应坐标.
  • 使用尺寸和形状PLUMED模块的元动力学进行增强采样.
  • 偏向形状的集群. 偏向形状的集群.

主要成果:

  • 建立了一个强大的工作流程来分析生物分子构造.
  • 形态GMM模型有效地捕捉了基于原子波动的自由能量景观.
  • 综合方法成功地沿着反应坐标取样,并完善构造模型.

结论:

  • 形状GMM方法提供了一种有效的方法,用于增强生物分子构造的采样和聚类.
  • 这种工作流有助于更深入地了解蛋白质的动态和功能.
  • 开发的工具可以帮助识别新药标和设计治疗分子.