A primer to single-particle cryo-electron microscopy.

A primer to single-particle cryo-electron microscopy.
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DOI:
10.1016/j.cell.2015.03.050
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发表时间:
2015-04-23
期刊:
影响因子:
64.5
通讯作者:
Walz T
Walz T
中科院分区:
生物学1区
文献类型:
--
作者:
Cheng Y;Grigorieff N;Penczek PA;Walz T

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单颗粒样品的冷冻电子显微镜(cryo-EM)用于确定蛋白质和大分子复合物的结构,而不需要晶体。探测器技术和软件算法的最新进展现在允许记录前所未有的质量的图像,并以近原子分辨率确定结构。然而,与X射线晶体学相比,cryo-EM是一种具有独特挑战性的年轻技术。本入门书解释了通过单粒子冷冻EM进行结构测定所涉及的不同步骤和注意事项,为希望更多了解该技术的科学家提供了概述,并解释了使用该技术获得的数据,以及为新从业者提供了入门指南。
Cryo-electron microscopy (cryo-EM) of single-particle specimens is used to determine the structure of proteins and macromolecular complexes without the need for crystals. Recent advances in detector technology and software algorithms now allow images of unprecedented quality to be recorded and structures to be determined at near-atomic resolution. However, compared with X-ray crystallography, cryo-EM is a young technique with distinct challenges. This primer explains the different steps and considerations involved in structure determination by single-particle cryo-EM to provide an overview for scientists wishing to understand more about this technique and the interpretation of data obtained with it, as well as a starting guide for new practitioners.
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