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相关概念视频

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

2.6K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.6K
Protein Diffusion in the Membrane01:24

Protein Diffusion in the Membrane

5.4K
Proteins show rotational as well as lateral diffusion across the membrane. The lateral diffusion of proteins was confirmed through the cell fusion experiment where mouse and human cells were fused, resulting in hybrid cells. When the human and mouse cells fused, the specific membrane proteins on human and mouse cells were marked with the red and green-fluorescent markers, respectively. Initially, the red and green fluorescence was located on the respective hemisphere of the cell. As time...
5.4K

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相关实验视频

Updated: Jan 16, 2026

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
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Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

Published on: April 13, 2022

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模拟自由扩散的单分子FRET数据,考虑蛋白质形态动力学.

James Losey1, Michael Jauch2, Axel Cortes-Cubero3

  • 1Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States.

The journal of physical chemistry. B
|January 15, 2026
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的方法来模拟灵活生物分子的单分子弗斯特共振能量转移 (smFRET) 数据. 该模拟使用Langevin动态生成现实的数据,用于开发先进的smFRET分析技术.

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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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Author Spotlight: Evaluation of Protein-Condensate Dynamics in Live Human Cells
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Author Spotlight: Evaluation of Protein-Condensate Dynamics in Live Human Cells

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相关实验视频

Last Updated: Jan 16, 2026

Study of Protein Dynamics via Neutron Spin Echo Spectroscopy
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Study of Protein Dynamics via Neutron Spin Echo Spectroscopy

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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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Author Spotlight: Evaluation of Protein-Condensate Dynamics in Live Human Cells
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科学领域:

  • 生物物理学的生物物理.
  • 计算生物学 计算生物学
  • 生物化学 生物化学

背景情况:

  • 单分子福斯特共振能量转移 (smFRET) 对于研究生物分子构造动力学至关重要.
  • 准确模拟smFRET数据对于开发和验证分析方法至关重要.

研究的目的:

  • 开发一个框架,用于生成灵活生物分子的高可靠性模拟smFRET数据.
  • 为了使smFRET数据分析技术的测试和完善.

主要方法:

  • 利用Langevin动力学来建模形状灵活性,并生成日间距离分布.
  • 模拟自由扩散的smFRET时间数据,包括分子扩散和光子统计数据.
  • 集成的分子动力学 (MD) 模拟用于增强数据生成中的现实性.

主要成果:

  • 成功生成了对形状灵活系统的现实smFRET时间数据.
  • 在模拟中证明了构造动力学,扩散和光子统计的整合.
  • 通过比较smFRET数据分析技术,验证了开发的模块.

结论:

  • 朗格文动态模块提供了一个强大的框架,用于模拟已知形状异质的系统中的smFRET数据.
  • 这种方法有助于开发灵活的蛋白质和生物分子的新分析技术.
  • 该框架支持创建更现实的模拟smFRET数据,用于高级研究.