Regulation of chromatin architecture by the PWWP domain-containing DNA damage-responsive factor EXPAND1/MUM1.
Regulation of chromatin architecture by the PWWP domain-containing DNA damage-responsive factor EXPAND1/MUM1.
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DOI:
10.1016/j.molcel.2009.12.040
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发表时间:
2010-03-26
期刊:
影响因子:
16
通讯作者:
Chen, Junjie
中科院分区:
文献类型:
--
作者:
Huen, Michael S. Y.;Huang, Jun;Leung, Justin W. C.;Sy, Shirley M. -H.;Leung, Ka Man;Ching, Yick-Pang;Tsao, Sai Wah;Chen, Junjie
Dynamic changes of chromatin structure facilitate diverse biological events, including DNA replication, repair, recombination, and gene transcription. Recent evidence revealed that DNA damage elicits alterations to the chromatin to facilitate proper checkpoint activation and DNA repair. Here we report the identification of the PWWP domain-containing protein EXPAND1 as an architectural component of the chromatin, which in response to DNA damage, serves as an accessory factor to promote cell survival. Depletion of EXPAND1 or inactivation of its PWWP domain resulted in chromatin compaction. Upon DNA damage, EXPAND1 rapidly concentrates at the vicinity of DNA damage sites via its direct interaction with 53BP1. Ablation of this interaction impaired damage-induced chromatin decondensation, which is accompanied by sustained DNA damage and hypersensitivity to genotoxic stress. Collectively, our study uncovers a chromatin bound factor that serves an accessory role in coupling damage signaling with chromatin changes in response to DNA damage.
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影响因子:
30.5
作者:
Manis, JP;Morales, JC;Carpenter, PB
通讯作者:
Carpenter, PB
DOI:
10.1083/jcb.200704140
发表时间:
2007-09-24
期刊:
The Journal of cell biology
影响因子:
--
作者:
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Fernandez-Capetillo O
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作者:
Fernandez-Capetillo, O;Chen, HT;Nussenzweig, A
通讯作者:
Nussenzweig, A
影响因子:
64.8
作者:
Ayoub, Nabieh;Jeyasekharan, Anand D.;Venkitaraman, Ashok R.
通讯作者:
Venkitaraman, Ashok R.