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Genetic interaction of the histone chaperone with double strand break repair genes in . | LitMetric

AI Article Synopsis

Article Abstract

(human HIRA) is a histone chaperone and transcription factor involved in establishment of the centromeric chromatin and chromosome segregation, regulation of histone transcription, and cellular response to stress. We carried out a double mutant genetic screen of and mutations in double strand break repair pathway. We find that functions after the MRN complex which initiates resection of blunt double strand break ends but before recruitment of the DNA damage repair machinery. Further, deletion of partially suppresses sensitivity to DNA damaging agents of mutations in genes involved in Break Induced Replication (BIR), one mechanism of rescue of stalled or collapses replication forks ( , ). also suppresses mutations in two checkpoint genes ( , ) on hydroxyurea a drug that stalls replication forks. Our results show that forms complex interactions with the DNA double strand break repair genes and may be involved in facilitating communication between damage sensors and downstream factors.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9005195PMC
http://dx.doi.org/10.17912/micropub.biology.000545DOI Listing

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