Poly(ADP-ribose)-dependent regulation of DNA repair by the chromatin remodeling enzyme ALC1.
Authors
Ahel, DraganaHorejsí, Zuzana
Wiechens, Nicola
Polo, Sophie E
Garcia-Wilson, Elisa
Ahel, Ivan
Flynn, Helen
Skehel, Mark
West, Stephen C
Jackson, Stephen P
Owen-Hughes, Tom
Boulton, Simon J
Affiliation
DNA Damage Response Laboratory, Clare Hall, London Research Institute, South Mimms EN6 3LD, UK.Issue Date
2009-09-04
Metadata
Show full item recordAbstract
Posttranslational modifications play key roles in regulating chromatin plasticity. Although various chromatin-remodeling enzymes have been described that respond to specific histone modifications, little is known about the role of poly[adenosine 5'-diphosphate (ADP)-ribose] in chromatin remodeling. Here, we identify a chromatin-remodeling enzyme, ALC1 (Amplified in Liver Cancer 1, also known as CHD1L), that interacts with poly(ADP-ribose) and catalyzes PARP1-stimulated nucleosome sliding. Our results define ALC1 as a DNA damage-response protein whose role in this process is sustained by its association with known DNA repair factors and its rapid poly(ADP-ribose)-dependent recruitment to DNA damage sites. Furthermore, we show that depletion or overexpression of ALC1 results in sensitivity to DNA-damaging agents. Collectively, these results provide new insights into the mechanisms by which poly(ADP-ribose) regulates DNA repair.Citation
Poly(ADP-ribose)-dependent regulation of DNA repair by the chromatin remodeling enzyme ALC1. 2009, 325 (5945):1240-3 ScienceJournal
ScienceDOI
10.1126/science.1177321PubMed ID
19661379Type
ArticleLanguage
enISSN
1095-9203ae974a485f413a2113503eed53cd6c53
10.1126/science.1177321
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