Coactivator condensation at super-enhancers links phase separation and gene control.
Coactivator condensation at super-enhancers links phase separation and gene control.
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DOI:
10.1126/science.aar3958
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发表时间:
2018-07-27
期刊:
影响因子:
--
通讯作者:
Young RA
中科院分区:
文献类型:
--
作者:
Sabari BR;Dall'Agnese A;Boija A;Klein IA;Coffey EL;Shrinivas K;Abraham BJ;Hannett NM;Zamudio AV;Manteiga JC;Li CH;Guo YE;Day DS;Schuijers J;Vasile E;Malik S;Hnisz D;Lee TI;Cisse II;Roeder RG;Sharp PA;Chakraborty AK;Young RA
Super-enhancers (SEs) are clusters of enhancers that cooperatively assemble a high density of transcriptional apparatus to drive robust expression of genes with prominent roles in cell identity. Here, we demonstrate that the SE-enriched transcriptional coactivators BRD4 and MED1 form nuclear puncta at SEs that exhibit properties of liquid-like condensates and are disrupted by chemicals that perturb condensates. The intrinsically disordered regions (IDRs) of BRD4 and MED1 can form phase-separated droplets and MED1-IDR droplets can compartmentalize and concentrate transcription apparatus from nuclear extracts. These results support the idea that coactivators form phase-separated condensates at SEs that compartmentalize and concentrate the transcription apparatus, suggest a role for coactivator IDRs in this process, and offer insights into mechanisms involved in control of key cell identity genes.
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影响因子:
16
作者:
Calo, Eliezer;Wysocka, Joanna
通讯作者:
Wysocka, Joanna
影响因子:
64.5
作者:
Hnisz D;Abraham BJ;Lee TI;Lau A;Saint-André V;Sigova AA;Hoke HA;Young RA
通讯作者:
Young RA
影响因子:
64.5
作者:
Dowen JM;Fan ZP;Hnisz D;Ren G;Abraham BJ;Zhang LN;Weintraub AS;Schujiers J;Lee TI;Zhao K;Young RA
通讯作者:
Young RA
影响因子:
7.7
作者:
Cho, Won-Ki;Jayanth, Namrata;Cisse, Ibrahim I.
通讯作者:
Cisse, Ibrahim I.
DOI:
10.1073/pnas.1706197114
发表时间:
2017-09-26
影响因子:
11.1
作者:
Brady, Jacob P.;Farber, Patrick J.;Kay, Lewis E.
通讯作者:
Kay, Lewis E.