Active regulatory elements recruit cohesin to establish cell-specific chromatin domains
Active regulatory elements recruit cohesin to establish cell-specific chromatin domains
复制标题
主动调控元件招募粘连蛋白以建立细胞特异性染色质结构域
DOI:
10.1101/2023.10.13.562171
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Georgiades E
中科院分区:
文献类型:
--
作者:
Georgiades E
As the 3D structure of the genome is analysed at ever increasing resolution it is clear that there is considerable variation in the 3D chromatin architecture across different cell types. It has been proposed that this may, in part, be due to increased recruitment of cohesin to activated cis-elements (enhancers and promoters) leading to cell-type specific loop extrusion underlying the formation of new sub-TADs. Here we show that cohesin correlates well with the presence of active enhancers and that this varies in an allele-specific manner with the presence or absence of polymorphic enhancers which vary from one individual to another. Using the alpha globin cluster as a model, we show that when all enhancers are removed, peaks of cohesin disappear from these regions and the erythroid specific sub-TAD is no longer formed. Re-insertion of the major alpha globin enhancer (R2) is associated with re-establishment of recruitment and increased interactions. In complementary experiments insertion of the R2 enhancer element into a “neutral” region of the genome recruits cohesin, induces transcription and creates a new large (75 kb) erythroid-specific domain. Together these findings support the proposal that active enhancers recruit cohesin, stimulate loop extrusion and promote the formation of cell specific sub-TADs.
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影响因子:
16.8
作者:
Rinzema, Niels J.;Sofiadis, Konstantinos;Tjalsma, Sjoerd J. D.;Verstegen, Marjon J. A. M.;Oz, Yuva;Valdes-Quezada, Christian;Felder, Anna-Karina;Filipovska, Teodora;van der Elst, Stefan;dos Ramos, Zaria de Andrade;Han, Ruiqi;Krijger, Peter H. L.;de laat, Wouter
通讯作者:
de laat, Wouter
影响因子:
64.8
作者:
通讯作者:
--
DOI:
10.1101/2023.09.06.556325
发表时间:
2023-09
期刊:
bioRxiv
影响因子:
--
作者:
Felice H. Tsang;Rosa J. Stolper;Muhammad Hanifi;Lucy J. Cornell;Helena S. Francis;Benjamin Davies;D. Higgs;Mira T. Kassouf
通讯作者:
Felice H. Tsang;Rosa J. Stolper;Muhammad Hanifi;Lucy J. Cornell;Helena S. Francis;Benjamin Davies;D. Higgs;Mira T. Kassouf
影响因子:
7
作者:
Stamatoyannopoulos JA
通讯作者:
Stamatoyannopoulos JA
影响因子:
48
作者:
Buenrostro, Jason D.;Giresi, Paul G.;Zaba, Lisa C.;Chang, Howard Y.;Greenleaf, William J.
通讯作者:
Greenleaf, William J.