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Mammalian mismatch repair: error-free or error-prone?


Peña-Diaz, Javier; Jiricny, Josef (2012). Mammalian mismatch repair: error-free or error-prone? Trends in Biochemical Sciences, 37(5):206-214.

Abstract

A considerable surge of interest in the mismatch repair (MMR) system has been brought about by the discovery of a link between Lynch syndrome, an inherited predisposition to cancer of the colon and other organs, and malfunction of this key DNA metabolic pathway. This review focuses on recent advances in our understanding of the molecular mechanisms of canonical MMR, which improves replication fidelity by removing misincorporated nucleotides from the nascent DNA strand. We also discuss the involvement of MMR proteins in two other processes: trinucleotide repeat expansion and antibody maturation, in which MMR proteins are required for mutagenesis rather than for its prevention.

Abstract

A considerable surge of interest in the mismatch repair (MMR) system has been brought about by the discovery of a link between Lynch syndrome, an inherited predisposition to cancer of the colon and other organs, and malfunction of this key DNA metabolic pathway. This review focuses on recent advances in our understanding of the molecular mechanisms of canonical MMR, which improves replication fidelity by removing misincorporated nucleotides from the nascent DNA strand. We also discuss the involvement of MMR proteins in two other processes: trinucleotide repeat expansion and antibody maturation, in which MMR proteins are required for mutagenesis rather than for its prevention.

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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > Institute of Molecular Cancer Research
07 Faculty of Science > Institute of Molecular Cancer Research
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:2012
Deposited On:06 Jul 2012 07:10
Last Modified:05 Apr 2016 15:51
Publisher:Elsevier
ISSN:0968-0004
Publisher DOI:https://doi.org/10.1016/j.tibs.2012.03.001
PubMed ID:22475811

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