Cryo-EM in the study of challenging systems: the human transcription pre-initiation complex.
Cryo-EM in the study of challenging systems: the human transcription pre-initiation complex.
复制标题
DOI:
10.1016/j.sbi.2016.09.009
复制
发表时间:
2016-10
影响因子:
6.8
通讯作者:
He, Yuan
中科院分区:
文献类型:
--
作者:
Nogales, Eva;Louder, Robert K.;He, Yuan
Single particle cryo-Electron Microscopy (cryo-EM) is a technique that allows the structural characterization of macromolecules without the need for crystallization. For certain type of samples that are ideally suited for cryo-EM studies it has been possible to reach high-resolution structures following relatively standard procedures. Other biological systems remain highly challenging, even for cryo-EM. Challenges may involve the scarcity of the sample, poor stability of the complexes, and most often, the intrinsic flexibility of biological molecules. Among these challenging samples are large eukaryotic transcription complexes, which suffer from all such shortcomings. Here we report how we have recently tried to overcome those challenges in order to improve our structural understanding of the human transcription pre-initiation complex assembly and the transcription initiation process. Parallel efforts have also been carried out for budding yeast transcription initiation complexes, allowing comparisons that establish both the overall conservation and the specific structural differences between the two systems.
登录
查看更多内容
影响因子:
48
作者:
Li, Xueming;Mooney, Paul;Zheng, Shawn;Booth, Christopher R.;Braunfeld, Michael B.;Gubbens, Sander;Agard, David A.;Cheng, Yifan
通讯作者:
Cheng, Yifan
影响因子:
3
作者:
Leschziner, AE;Nogales, E
通讯作者:
Nogales, E
影响因子:
48
作者:
Nogales E
通讯作者:
Nogales E
影响因子:
3
作者:
Penczek, PA;Frank, J;Spahn, CMT
通讯作者:
Spahn, CMT
DOI:
10.1016/j.ymeth.2016.02.007
发表时间:
2016-05-01
期刊:
Methods (San Diego, Calif.)
影响因子:
--
作者:
Frank J;Ourmazd A
通讯作者:
Ourmazd A