Requirement of ATM-dependent monoubiquitylation of histone H2B for timely repair of DNA double-strand breaks.
Requirement of ATM-dependent monoubiquitylation of histone H2B for timely repair of DNA double-strand breaks.
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DOI:
10.1016/j.molcel.2011.02.015
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发表时间:
2011-03-04
期刊:
影响因子:
16
通讯作者:
Shiloh Y
中科院分区:
文献类型:
--
作者:
Moyal L;Lerenthal Y;Gana-Weisz M;Mass G;So S;Wang SY;Eppink B;Chung YM;Shalev G;Shema E;Shkedy D;Smorodinsky NI;van Vliet N;Kuster B;Mann M;Ciechanover A;Dahm-Daphi J;Kanaar R;Hu MC;Chen DJ;Oren M;Shiloh Y
The cellular response to DNA double-strand breaks (DSBs) is mobilized by the protein kinase ATM, which phosphorylates key players in the DNA damage response (DDR) network. A major question is how ATM controls DSB repair. Optimal repair requires chromatin relaxation at damaged sites. Chromatin reorganization is coupled to dynamic alterations in histone posttranslational modifications. Here, we show that in human cells, DSBs induce monoubiquitylation of histone H2B, a modification that is associated in undamaged cells with transcription elongation. We find that this process relies on recruitment to DSB sites and ATM-dependent phosphorylation of the responsible E3 ubiquitin ligase: the RNF20-RNF40 heterodimer. H2B monoubiquitylation is required for timely recruitment of players in the two major DSB repair pathways—nonhomologous end-joining and homologous recombination repair—and optimal repair via both pathways. Our data and previous data suggest a two-stage model for chromatin decondensation that facilitates DSB repair.
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影响因子:
3.4
作者:
Chernikova SB;Dorth JA;Razorenova OV;Game JC;Brown JM
通讯作者:
Brown JM
DOI:
10.1083/jcb.200510130
发表时间:
2006-04-24
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bekker-Jensen S;Lukas C;Kitagawa R;Melander F;Kastan MB;Bartek J;Lukas J
通讯作者:
Lukas J
影响因子:
3.3
作者:
Game, John C.;Williamson, Marsha S.;Brown, J. Martin
通讯作者:
Brown, J. Martin
影响因子:
16.8
作者:
通讯作者:
--
影响因子:
16
作者:
Ciccia A;Elledge SJ
通讯作者:
Elledge SJ