RAD18 transmits DNA damage signalling to elicit homologous recombination repair.
RAD18 transmits DNA damage signalling to elicit homologous recombination repair.
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RAD18 传递 DNA 损伤信号以引发同源重组修复。
DOI:
10.1038/ncb1865
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发表时间:
2009-05
影响因子:
21.3
通讯作者:
Chen, Junjie
中科院分区:
文献类型:
--
作者:
Huang, Jun;Huen, Michael S. Y.;Kim, Hongtae;Leung, Charles Chung Yun;Glover, J. N. Mark;Yu, Xiaochun;Chen, Junjie
To maintain genome stability, cells respond to DNA damage by activating signaling pathways that govern cell cycle checkpoints and initiate DNA repair. Cell cycle checkpoint controls should somehow connect with DNA repair processes, however, exactly how such coordination occurs in vivo is largely unknown. Here we revealed a novel role of RAD18 as the integral component that translates the damage response signal to orchestrate homologous recombination (HR) repair. We show that RAD18 promotes HR in a manner strictly dependent upon its ability to be recruited to the sites of DNA breaks and this recruitment relies on a well-defined DNA damage-signaling pathway mediated by another E3 ligase RNF8. We further demonstrate that RAD18 functions as an adaptor to facilitate HR via a direct interaction with RAD51C. Together, our data uncovers RAD18 as a key factor that orchestrates HR repair via surveillance of the DNA damage signal.
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