Abstract:
:The cellular response to DNA breaks is influenced by chromatin compaction. To identify chromatin regulators involved in the DNA damage response, we screened for genes that affect recovery following DNA damage using an RNAi library of chromatin regulators. We identified genes involved in chromatin remodeling, sister chromatid cohesion, and histone acetylation not previously associated with checkpoint recovery. Among these is the PHD finger protein 6 (PHF6), a gene mutated in Börjeson-Forssman-Lehmann syndrome and leukemic cancers. We find that loss of PHF6 dramatically compromises checkpoint recovery in G2 phase cells. Moreover, PHF6 is rapidly recruited to sites of DNA lesions in a PARP-dependent manner and required for efficient DNA repair through classical non-homologous end joining. These results indicate that PHF6 is a novel DNA damage response regulator that promotes end joining-mediated repair, thereby stimulating timely recovery from the G2 checkpoint.
journal_name
EMBO Repjournal_title
EMBO reportsauthors
Warmerdam DO,Alonso-de Vega I,Wiegant WW,van den Broek B,Rother MB,Wolthuis RM,Freire R,van Attikum H,Medema RH,Smits VAdoi
10.15252/embr.201948460subject
Has Abstractpub_date
2020-01-07 00:00:00pages
e48460issue
1eissn
1469-221Xissn
1469-3178journal_volume
21pub_type
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