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Rpd3 regulates single-copy origins independently of the rDNA array by opposing origin stimulation by Fkh1

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE200351 | GEO | 2022/04/06

REPOSITORIES: GEO

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Rpd3 regulates single-copy origins independently of the rDNA array by opposing origin stimulation by Fkh1 [ChIP-seq]

Project description:The replication of eukaryotic genomes is highly regulated to ensure faithful transmission of all genetic information through cell divisions. In addition to stringent control of origin initiation by cell cycle controls and DNA damage checkpoints, spatial and temporal control of origins serves to stage and balance replication of different genomic regions, with potential implications for development and genome stability. Replication of highly repetitive sequences creates stressful competition between genomic regions for sufficient replication resources. Here, we examined histone deacetylases Rpd3 and Sir2 in balancing replication between unique sequences and the multi-copy ribosomal DNA gene cluster(s), which has emerged as an evolutionarily conserved node of genomic instability. We elucidate Rpd3's mechanism of origin regulation, which is distinct and independent of Sir2.

2022-04-01 | GSE199728 | GEO