Cohesin Loss Eliminates All Loop Domains.
Cohesin Loss Eliminates All Loop Domains.
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DOI:
10.1016/j.cell.2017.09.026
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发表时间:
2017-10-05
期刊:
影响因子:
64.5
通讯作者:
Aiden EL
中科院分区:
文献类型:
--
作者:
Rao SSP;Huang SC;Glenn St Hilaire B;Engreitz JM;Perez EM;Kieffer-Kwon KR;Sanborn AL;Johnstone SE;Bascom GD;Bochkov ID;Huang X;Shamim MS;Shin J;Turner D;Ye Z;Omer AD;Robinson JT;Schlick T;Bernstein BE;Casellas R;Lander ES;Aiden EL
The human genome folds to create thousands of intervals, called “contact domains,” that exhibit enhanced contact frequency within themselves. “Loop domains” form because of tethering between two loci – almost always bound by CTCF and cohesin – lying on the same chromosome. “Compartment domains” form when genomic intervals with similar histone marks co-segregate. Here, we explore the effects of degrading cohesin. All loop domains are eliminated, but neither compartment domains nor histone marks are affected. Loss of loop domains does not lead to widespread ectopic gene activation, but does affect a significant minority of active genes. In particular, cohesin loss causes superenhancers to co-localize, forming hundreds of links within and across chromosomes, and affecting the regulation of nearby genes. We then restore cohesin and monitor the re-formation of each loop. Although reformation rates vary greatly, many megabase-sized loops recovered in under an hour, consistent with a model where loop extrusion is rapid. Cohesin loss results in elimination of loop domains, but neither compartment domains nor histone marks are affected.
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影响因子:
64.5
作者:
Haarhuis JHI;van der Weide RH;Blomen VA;Yáñez-Cuna JO;Amendola M;van Ruiten MS;Krijger PHL;Teunissen H;Medema RH;van Steensel B;Brummelkamp TR;de Wit E;Rowland BD
通讯作者:
Rowland BD
影响因子:
48
作者:
Langmead, Ben;Salzberg, Steven L.
通讯作者:
Salzberg, Steven L.
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:
3.3
作者:
Bascom, Gavin D.;Kim, Taejin;Schlick, Tamar
通讯作者:
Schlick, Tamar
影响因子:
64.8
作者:
Larson AG;Elnatan D;Keenen MM;Trnka MJ;Johnston JB;Burlingame AL;Agard DA;Redding S;Narlikar GJ
通讯作者:
Narlikar GJ