BET inhibition disrupts transcription but retains enhancer-promoter contact
BET inhibition disrupts transcription but retains enhancer-promoter contact
复制标题
BET 抑制会破坏转录但保留增强子-启动子接触
DOI:
10.1101/848325
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Crump N
中科院分区:
文献类型:
--
作者:
Crump N
Enhancers are DNA sequences that enable complex temporal and tissue-specific regulation of genes in higher eukaryotes. Although it is not entirely clear how enhancer-promoter interactions can increase gene expression, this proximity has been observed in multiple systems at multiple loci and is thought to be essential for the maintenance of gene expression. Bromodomain and Extra-Terminal domain (BET) and Mediator proteins have been shown capable of forming phase condensates and are thought to be essential for super-enhancer function. Here, we show that targeting of cells with inhibitors of BET proteins or pharmacological degradation of BET protein Bromodomain-containing protein 4 (BRD4) has a strong impact on transcription but very little impact on enhancer-promoter interactions. Dissolving phase condensates reduces BRD4 and Mediator binding at enhancers and can also strongly affect gene transcription, without disrupting enhancer-promoter interactions. These results suggest that activation of transcription and maintenance of enhancer-promoter interactions are separable events. Our findings further indicate that enhancer-promoter interactions are not dependent on high levels of BRD4 and Mediator, and are likely maintained by a complex set of factors including additional activator complexes and, at some sites, CTCF and cohesin.
登录
查看更多内容
影响因子:
16
作者:
Cajigas I;Chakraborty A;Swyter KR;Luo H;Bastidas M;Nigro M;Morris ER;Chen S;VanGompel MJW;Leib D;Kohtz SJ;Martina M;Koh S;Ay F;Kohtz JD
通讯作者:
Kohtz JD
DOI:
10.1101/393413
发表时间:
2018
期刊:
bioRxiv
影响因子:
--
作者:
Jelena M. Telenius;J. Hughes
通讯作者:
J. Hughes
影响因子:
16
作者:
Heinz S;Benner C;Spann N;Bertolino E;Lin YC;Laslo P;Cheng JX;Murre C;Singh H;Glass CK
通讯作者:
Glass CK
影响因子:
64.5
作者:
Boija A;Klein IA;Sabari BR;Dall'Agnese A;Coffey EL;Zamudio AV;Li CH;Shrinivas K;Manteiga JC;Hannett NM;Abraham BJ;Afeyan LK;Guo YE;Rimel JK;Fant CB;Schuijers J;Lee TI;Taatjes DJ;Young RA
通讯作者:
Young RA
影响因子:
64.8
作者:
通讯作者:
--