MRC2020:对Ximdisp和MRC图像处理程序的改进
J M Short1, C M Palmer2, T Burnley2
1MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, United Kingdom.
IUCrJ
|July 26, 2023
概括
更新的MRC2020软件包增强了单粒子电子冷显微镜 (cryoEM) 数据处理. 这种灵活的工具支持新的计算方法,并保留了旧程序用于高级冷EM结构确定的多功能性.
科学领域:
- 结构生物学 结构生物学
- 生物物理学的生物物理.
- 计算生物学 计算生物学
背景情况:
- 由于复杂的软件包,单粒子电子冷显微镜 (cryoEM) 已经取得了重大进展.
- 当前的工作流程往往优先考虑标准化程序,这可能会限制新型图像处理步骤的灵活性.
- 像原始的MRC套件这样的较旧,高度灵活的程序对于专业应用仍然很有价值.
研究的目的:
- 引入MRC图像处理软件包的更新版本,命名为MRC2020.
- 通过改进功能和格式扩展来增强冷EM数据处理的能力.
- 提供一种多功能工具,用于测试冷EM中的新计算程序.
主要方法:
- 开发MRC2020,这是MRC原始图像处理程序的更新版本.
- 将扩展件纳入MRC格式以保持包的多功能性.
- 通过CCP-EM.EM免费提供MRC2020套餐.
主要成果:
- 与之前的版本相比,MRC2020提供了新的功能和改进.
- 更新的MRC格式扩展保留了该包的灵活性.
- 该软件对于在冷EM中探索和测试新型计算方法特别有用.
结论:
- 软件包MRC2020代表了对冷EM数据处理的重大更新.
- 它保留了多功能性和新功能,促进了先进的结构确定.
- MRC2020是研究人员开发和测试冷EM的创新计算方法的宝贵资源.
相关概念视频
Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Phase Contrast and Differential Interference Contrast Microscopy
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
X-ray Imaging
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with X-rays, and by 1900, X-ray was widely...


