Timing and spacing of ubiquitin-dependent DNA damage bypass - PubMed (original) (raw)
Review
. 2011 Sep 16;585(18):2861-7.
doi: 10.1016/j.febslet.2011.05.028. Epub 2011 May 18.
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- PMID: 21605556
- DOI: 10.1016/j.febslet.2011.05.028
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Review
Timing and spacing of ubiquitin-dependent DNA damage bypass
Helle D Ulrich. FEBS Lett. 2011.
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Abstract
During its duplication, DNA, the carrier of our genetic information, is particularly vulnerable to decay, and the capacity of cells to deal with replication stress has been recognised as a major factor protecting us from genome instability and cancer. One of the major pathways controlling the bypass of DNA lesions during replication is activated by ubiquitylation of the sliding clamp, PCNA. Whereas monoubiquitylation of PCNA allows mutagenic translesion synthesis by damage-tolerant DNA polymerases, polyubiquitylation is required mainly for an error-free pathway that likely involves template switching. This review is focussed on our understanding of the timing of damage bypass during the cell cycle and the question of how it is coordinated with the progression of replication forks.
Copyright © 2011 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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