Transcription-coupled repair and the transcriptional response to UV-Irradiation
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Lesions in genes that result in RNA polymerase II (RNAPII) stalling or arrest are particularly toxic as they are a focal point of genome instability and potently block further transcription of the affected gene. Thus, cells have evolved the transcription-coupled nucleotide excision repair (TC-NER) pathway to identify damage-stalled RNAPIIs, so that the lesion can be rapidly repaired and transcription can continue. However, despite the identification of several factors required for TC-NER, how RNAPII is remodelled, modified, removed, or whether this is even necessary for repair remains enigmatic, and theories are intensely contested. Recent studies have further detailed the cellular response to UV-induced ubiquitylation and degradation of RNAPII and its consequences for transcription and repair. These advances make it pertinent to revisit the TC-NER process in general and with specific discussion of the fate of RNAPII stalled at DNA lesions.
Original language | English |
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Article number | 103208 |
Journal | DNA Repair |
Volume | 107 |
ISSN | 1568-7864 |
DOIs | |
Publication status | Published - 2021 |
Bibliographical note
Publisher Copyright:
© 2021
- Cockayne syndrome, Nucleotide excision repair, Transcription-coupled nucleotide excision repair, Ubiquitin, UVSSA, Xeroderma pigmentosum
Research areas
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