An Igh distal enhancer modulates antigen receptor diversity by determining locus conformation.
An Igh distal enhancer modulates antigen receptor diversity by determining locus conformation.
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DOI:
10.1038/s41467-023-36414-2
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发表时间:
2023-03-03
影响因子:
16.6
通讯作者:
Kenter, Amy L.
中科院分区:
文献类型:
--
作者:
Bhat, Khalid H.;Priyadarshi, Saurabh;Naiyer, Sarah;Qu, Xinyan;Farooq, Hammad;Kleiman, Eden;Xu, Jeffery;Lei, Xue;Cantillo, Jose F.;Wuerffel, Robert;Baumgarth, Nicole;Liang, Jie;Feeney, Ann J.;Kenter, Amy L.
The mouse Igh locus is organized into a developmentally regulated topologically associated domain (TAD) that is divided into subTADs. Here we identify a series of distal VH enhancers (EVHs) that collaborate to configure the locus. EVHs engage in a network of long-range interactions that interconnect the subTADs and the recombination center at the DHJH gene cluster. Deletion of EVH1 reduces V gene rearrangement in its vicinity and alters discrete chromatin loops and higher order locus conformation. Reduction in the rearrangement of the VH11 gene used in anti-PtC responses is a likely cause of the observed reduced splenic B1 B cell compartment. EVH1 appears to block long-range loop extrusion that in turn contributes to locus contraction and determines the proximity of distant VH genes to the recombination center. EVH1 is a critical architectural and regulatory element that coordinates chromatin conformational states that favor V(D)J rearrangement. Here the authors show enhancers in the Igh locus play a major role in configuring locus architecture and in V(D)J recombination, and identify a link between enhancer hub formation, locus contraction and cohesin-mediated loop extrusion.
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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:
4.4
作者:
Degner, Stephanie C.;Wong, Timothy P.;Jankevicius, Gytis;Feeney, Ann J.
通讯作者:
Feeney, Ann J.
影响因子:
64.8
作者:
Ba Z;Lou J;Ye AY;Dai HQ;Dring EW;Lin SG;Jain S;Kyritsis N;Kieffer-Kwon KR;Casellas R;Alt FW
通讯作者:
Alt FW
影响因子:
64.8
作者:
Dixon JR;Jung I;Selvaraj S;Shen Y;Antosiewicz-Bourget JE;Lee AY;Ye Z;Kim A;Rajagopal N;Xie W;Diao Y;Liang J;Zhao H;Lobanenkov VV;Ecker JR;Thomson JA;Ren B
通讯作者:
Ren B
影响因子:
5.3
作者:
Bolland, Daniel J.;Wood, Andrew L.;Corcoran, Anne E.
通讯作者:
Corcoran, Anne E.