title: Emerging roles for histone modifications in DNA excision repair.
abstract: DNA repair is critical to maintain genome stability. In eukaryotic cells, DNA repair is complicated by the packaging of the DNA 'substrate' into chromatin. DNA repair pathways utilize different mechanisms to overcome the barrier presented by chromatin to efficiently locate and remove DNA lesions in the genome. DNA excision repair pathways are responsible for repairing a majority of DNA lesions arising in the genome. Excision repair pathways include nucleotide excision repair (NER) and base excision repair (BER), which repair bulky and non-bulky DNA lesions, respectively. Numerous studies have suggested that chromatin inhibits both NER and BER in vitro and in vivo Growing evidence demonstrates that histone modifications have important roles in regulating the activity of NER and BER enzymes in chromatin. Here, we will discuss the roles of different histone modifications and the corresponding modifying enzymes in DNA excision repair, highlighting the role of yeast as a model organism for many of these studies.
authors.affiliation: School of Molecular Biosciences, Washington State University, Pullman, WA 99164, USA.
authors.forename: Peng
authors.initials: P
authors.lastname: Mao
authors.affiliation: School of Molecular Biosciences, Washington State University, Pullman, WA 99164, USA Center for Reproductive Biology, Washington State University, Pullman, WA 99164, USA jwyrick@vetmed.wsu.edu.
authors.forename: John J
authors.initials: JJ
authors.lastname: Wyrick
mesh_terms: D002843:Chromatin / Q000378:metabolism*; D004247:DNA / Q000378:metabolism*; D004249:DNA Damage; D004260:DNA Repair; D042822:Genomic Instability; D042421:Histone Code
chemical_list: D002843:Chromatin; D004247:DNA
keywords: BER; DNA repair; NER; chromatin; histone acetylation