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相关概念视频

Cryo-electron Microscopy01:28

Cryo-electron Microscopy

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Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...
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相关实验视频

Updated: Jul 4, 2025

Author Spotlight: Exploring Cellular Processes by Modeling Ligands in Cryo-EM Maps
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Author Spotlight: Exploring Cellular Processes by Modeling Ligands in Cryo-EM Maps

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DiffModeler:使用扩散模型在低分辨率的冷EM地图中建模大型宏分子结构.

Xiao Wang1, Han Zhu1, Genki Terashi2

  • 1Department of Computer Science, Purdue University, West Lafayette, Indiana, 47907, USA.

bioRxiv : the preprint server for biology
|February 8, 2024
PubMed
概括
此摘要是机器生成的。

一种自动化方法DiffModeler从中等分辨率的冷电子显微镜 (cryo-EM) 地图准确地建模复杂的蛋白质结构. 它集成了扩散模型和AlphaFold2预测,即使对于大型复杂物来说也能达到高精度.

科学领域:

  • 结构生物学是结构生物学.
  • 计算生物学是一种计算生物学.

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Do's and Don'ts of Cryo-electron Microscopy: A Primer on Sample Preparation and High Quality Data Collection for Macromolecular 3D Reconstruction
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Single Particle Cryo-Electron Microscopy: From Sample to Structure
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Single Particle Cryo-Electron Microscopy: From Sample to Structure

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相关实验视频

Last Updated: Jul 4, 2025

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Single Particle Cryo-Electron Microscopy: From Sample to Structure
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  • 生物物理学的生物物理.

    • 背景情况:

    • 电子显微镜 (cryo-EM) 对于确定多链蛋白质复杂结构至关重要.
    • 以中等分辨率 (5-10 Å) 建模蛋白质复合体仍然是一个重大挑战.
    • 现有的方法在这个分辨率范围内难以准确的结构拟合和de novo建模.

    结论:

    • DiffModeler显著推进了自动化蛋白质复杂结构建模,特别是在中间分辨率.
    • 为具有挑战性的冷EM数据提供了强大的解决方案.
    • 显示了模拟大型复杂生物组件和核酸相互作用的潜力.