Yasuda et al accepted.pdf (66.99 MB)
Novel function of HATs and HDACs in homologous recombination through acetylation of human RAD52 at double-strand break sites
journal contribution
posted on 2023-06-09, 14:32 authored by Takeshi Yasuda, Wataru Kagawa, Tomoo Ogi, Takamitsu A Kato, Takehrio Suzuki, Naoshi Dohmae, Kazaya Takisawa, Yuka Nakazawa, Matthew D Genet, Mika Saotome, Michio Hama, Teruaki Konishi, Nakako Izumi Nakajima, Masaharu Hazawa, Masanori Tomita, Manabu Koike, Katsuko Noshiro, Kenichi Tomiyama, Chizuka Obara, Takaya Gotoh, Ayako Ui, Akira Fujimori, Fumiaki Nakayama, Fumio Hanaoka, Kaoru Sugasawa, Ryuichi Okayasu, Penny Jeggo, Katsushi TajimaThe p300 and CBP histone acetyltransferases are recruited to DNA double-strand break (DSB) sites where they induce histone acetylation, thereby influencing the chromatin structure and DNA repair process. Whether p300/CBP at DSB sites also acetylate non-histone proteins, and how their acetylation affects DSB repair, remain unknown. Here we show that p300/CBP acetylate RAD52, a human homologous recombination (HR) DNA repair protein, at DSB sites. Using in vitro acetylated RAD52, we identified 13 potential acetylation sites in RAD52 by a mass spectrometry analysis. An immunofluorescence microscopy analysis revealed that RAD52 acetylation at DSBs sites is counteracted by SIRT2- and SIRT3-mediated deacetylation, and that non-acetylated RAD52 initially accumulates at DSB sites, but dissociates prematurely from them. In the absence of RAD52 acetylation, RAD51, which plays a central role in HR, also dissociates prematurely from DSB sites, and hence HR is impaired. Furthermore, inhibition of ataxia telangiectasia mutated (ATM) protein by siRNA or inhibitor treatment demonstrated that the acetylation of RAD52 at DSB sites is dependent on the ATM protein kinase activity, through the formation of RAD52, p300/CBP, SIRT2, and SIRT3 foci at DSB sites. Our findings clarify the importance of RAD52 acetylation in HR and its underlying mechanism.
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Publication status
- Published
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- Published version
Journal
PLoS ONEISSN
1932-6203Publisher
Public Library of ScienceExternal DOI
Page range
1-38Department affiliated with
- Sussex Centre for Genome Damage Stability Publications
Research groups affiliated with
- Genome Damage and Stability Centre Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-08-14First Open Access (FOA) Date
2018-08-14First Compliant Deposit (FCD) Date
2018-08-13Usage metrics
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