Structure of the human Mediator-bound transcription preinitiation complex.
Structure of the human Mediator-bound transcription preinitiation complex.
复制标题
DOI:
10.1126/science.abg3074
复制
发表时间:
2021-04-02
期刊:
影响因子:
--
通讯作者:
He Y
中科院分区:
文献类型:
--
作者:
Abdella R;Talyzina A;Chen S;Inouye CJ;Tjian R;He Y
Eukaryotic transcription requires the assembly of a multi-subunit pre-initiation complex (PIC) comprised of RNA polymerase II (Pol II) and the general transcription factors. The co-activator Mediator is recruited by transcription factors, facilitates the assembly of the PIC, and stimulates phosphorylation of the Pol II C-terminal domain (CTD) by the TFIIH subunit CDK7. Here, we present the cryo-electron microscopy structure of the human Mediator-bound PIC at sub-4 Å. Transcription factor binding sites within Mediator are primarily flexibly tethered to the tail module. CDK7 is stabilized by multiple contacts with Mediator. Two binding sites exist for the Pol II CTD, one between the head and middle modules of Mediator and the other in the active site of CDK7, providing structural evidence for Pol II CTD phosphorylation within the Mediator-bound PIC. Cryo-electron microscopy reveals the high-resolution structure of the human Mediator-bound transcription pre-initiation complex.
登录
查看更多内容
影响因子:
64.5
作者:
El Khattabi L;Zhao H;Kalchschmidt J;Young N;Jung S;Van Blerkom P;Kieffer-Kwon P;Kieffer-Kwon KR;Park S;Wang X;Krebs J;Tripathi S;Sakabe N;Sobreira DR;Huang SC;Rao SSP;Pruett N;Chauss D;Sadler E;Lopez A;Nóbrega MA;Aiden EL;Asturias FJ;Casellas R
通讯作者:
Casellas R
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
16
作者:
Esnault, Cyril;Ghavi-Helm, Yad;Werner, Michel
通讯作者:
Werner, Michel
影响因子:
5.6
作者:
Bernecky, Carrie;Taatjes, Dylan J.
通讯作者:
Taatjes, Dylan J.
影响因子:
14.9
作者:
Drozdetskiy A;Cole C;Procter J;Barton GJ
通讯作者:
Barton GJ