Journal
MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS
Volume 577, Issue 1-2, Pages 131-145Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mrfmmm.2005.03.014
Keywords
RNA polymerase; transcription elongation; transcription arrest; transcription-coupled repair; DNA damage
Funding
- NCI NIH HHS [CA-77712] Funding Source: Medline
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Transcription arrest by RNA polymerase II at a DNA damage site on the transcribed strand is considered an essential step in initiation of transcription-coupled repair (TCR), a specialized repair pathway, which specifically removes lesions from transcribed strands of expressed genes. To understand how initiation of TCR occurs, it is necessary to characterize the properties of the transcription complex when it encounters a lesion in its path. The analysis of different types of arrested complexes should help us understand how an arrested RNA polymerase may signal the repair proteins to initiate a repair event. This article will review the recent literature describing how the presence of DNA damage along the DNA affects transcription elongation by RNA polymerase II and its implications for the initial steps of TCR. (C) 2005 Elsevier B.V. All rights reserved.
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