Single-Particle Cryo-EM at Crystallographic Resolution.

Single-Particle Cryo-EM at Crystallographic Resolution.
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DOI:
10.1016/j.cell.2015.03.049
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发表时间:
2015-04-23
期刊:
影响因子:
64.5
通讯作者:
Cheng Y
Cheng Y
中科院分区:
生物学1区
文献类型:
--
作者:
Cheng Y

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直到几年前,单粒子电子冷冻显微镜(cryo-EM)通常不是许多结构生物学家的首选,因为它在纳米到亚纳米范围内的分辨率有限。现在,这种方法在分辨率方面可以与X射线晶体学相媲美,并且可以用于确定难以结晶或难以在特定功能状态下结晶的大分子的原子结构。在这篇综述中,我讨论了最近在硬件和软件方面的突破,这些突破改变了低温显微镜,使人们能够在原子水平上理解复杂的生物分子及其功能。
Until only a few years ago, single-particle electron cryo-microscopy (cryo-EM) was usually not the first choice for many structural biologists due to its limited resolution in the range of nanometer to subnanometer. Now, this method rivals X-ray crystallography in terms of resolution and can be used to determine atomic structures of macromolecules that are either refractory to crystallization or difficult to crystallize in specific functional states. In this review, I discuss the recent breakthroughs in both hardware and software that transformed cryo-microscopy, enabling understanding of complex biomolecules and their functions at atomic level.
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