title: Timing of DNA lesion recognition: Ubiquitin signaling in the NER pathway.
abstract: Damaged DNA is repaired by specialized repair factors that are recruited in a well-orchestrated manner to the damage site. The DNA damage response at UV inflicted DNA lesions is accompanied by posttranslational modifications of DNA repair factors and the chromatin environment sourrounding the lesion. In particular, mono- and poly-ubiquitylation events are an integral part of the DNA damage signaling. Whereas ubiquitin signaling at DNA doublestrand breaks has been subject to intensive studies comparatively little is known about the intricacies of ubiquitylation events occurring during nucleotide excision repair (NER), the major pathway to remove bulky helix lesions. Both, the global genomic (GG-NER) and the transcription-coupled (TC-NER) branches of NER are subject to ubiquitylation and deubiquitylation processes.Here we summarize our current knowledge of the ubiquitylation network that drives DNA repair in the NER pathway and we discuss the crosstalk of ubiquitin signaling with other prominent post-translational modfications that might be essential to time the DNA damage recognition step.
authors.affiliation: a Laboratory of Molecular Epigenetics, Institute of Molecular Biology (IMB) , Mainz , Germany.|b Faculty of Biology, Johannes Gutenberg University , Mainz , Germany.
authors.forename: Shalaka
authors.initials: S
authors.lastname: Chitale
authors.affiliation: a Laboratory of Molecular Epigenetics, Institute of Molecular Biology (IMB) , Mainz , Germany.
authors.forename: Holger
authors.initials: H
authors.lastname: Richly
mesh_terms: D000818:Animals; D004249:DNA Damage; D004260:DNA Repair; D006801:Humans; D015398:Signal Transduction; D013997:Time Factors; D025801:Ubiquitin / Q000378:metabolism*; D054875:Ubiquitination
chemical_list: D025801:Ubiquitin
keywords: DNA damage response; de-ubiquitylation; mono-ubiquitylation; nucleotide excision repair; poly-ubiquitylation; ubiquitin