Multifaceted roles of cohesin in regulating transcriptional loops.
Multifaceted roles of cohesin in regulating transcriptional loops.
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粘连蛋白在调节转录环中的多方面作用。
DOI:
10.1101/2024.03.25.586715
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发表时间:
2024
期刊:
影响因子:
--
通讯作者:
Ruan,Yijun
中科院分区:
文献类型:
--
作者:
Kim,Minji;Wang,Ping;Clow,PatriciaA;Chien,IEli;Wang,Xiaotao;Peng,Jianhao;Chai,Haoxi;Liu,Xiyuan;Lee,Byoungkoo;Ngan,ChewYee;Yue,Feng;Milenkovic,Olgica;Chuang,JeffreyH;Wei,Chia-Lin;Casellas,Rafael;Cheng,AlbertW;Ruan,Yijun
Cohesin is required for chromatin loop formation. However, its precise role in regulating gene transcription remains largely unknown. We investigated the relationship between cohesin and RNA Polymerase II (RNAPII) using single-molecule mapping and live-cell imaging methods in human cells. Cohesin-mediated transcriptional loops were highly correlated with those of RNAPII and followed the direction of gene transcription. Depleting RAD21, a subunit of cohesin, resulted in the loss of long-range (>100 kb) loops between distal (super-)enhancers and promoters of cell-type-specific genes. By contrast, the short-range (<50 kb) loops were insensitive to RAD21 depletion and connected genes that are mostly housekeeping. This result explains why only a small fraction of genes are affected by the loss of long-range chromatin interactions due to cohesin depletion. Remarkably, RAD21 depletion appeared to up-regulate genes located in early initiation zones (EIZ) of DNA replication, and the EIZ signals were amplified drastically without RAD21. Our results revealed new mechanistic insights of cohesin’s multifaceted roles in establishing transcriptional loops, preserving long-range chromatin interactions for cell-specific genes, and maintaining timely order of DNA replication.
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影响因子:
4.2
作者:
S. Leach;P. Critchley;A. Kolendo;C. Saxton
通讯作者:
C. Saxton
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
K. Minaguchi;A. Bennick
通讯作者:
A. Bennick
影响因子:
2.9
作者:
D. Kauffman;A. Bennick;Max Blum;Patricia J. Keller
通讯作者:
Patricia J. Keller
DOI:
10.1042/bj2340043
发表时间:
1986
期刊:
The Biochemical journal
影响因子:
--
作者:
Bergey,EJ;Levine,MJ;Reddy,MS;Bradway,SD;Al-Hashimi,I
通讯作者:
Al-Hashimi,I
DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Moreno,EC;Kresak,M;Hay,DI
通讯作者:
Hay,DI