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Deoxyribonucleotides as Genetic and Metabolic Regulators

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Title Deoxyribonucleotides as Genetic and Metabolic Regulators
Names Mathews, Christopher K. (creator)
Date Issued 2014-09 (iso8601)
Note This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the Federation of American Societies for Experimental Biology and can be found at: http://www.fasebj.org/
Abstract For more than 35 years we have known that the accuracy of DNA replication is controlled in
large part by the relative concentrations of the four canonical deoxyribonucleoside 5'-triphosphates (dNTPs) at the replisome. Since this field was last reviewed, about eight years ago,
there has been increased understanding of the mutagenic pathways as they occur in living cells.
At the same time, aspects of deoxyribonucleotide metabolism have been shown to be critically
involved in processes as diverse as cell cycle control, protooncogene expression, cellular defense
against HIV infection, replication rate control, telomere length control, and mitochondrial
function. Evidence supports a relationship between dNTP pools and microsatellite repeat
instability. Relationships between dNTP synthesis and breakdown in controlling steady-state
pools have become better defined. In addition, new experimental approaches have allowed
definitive analysis of mutational pathways induced by dNTP pool abnormalities, both in E. coli
and in yeast. Finally, ribonucleoside triphosphate (rNTP) pools have been shown to be critical
determinants of DNA replication fidelity. These developments are discussed in this review
article.
Genre Article
Topic mutagenesis
Identifier Mathews, C. K. (2014). Deoxyribonucleotides as genetic and metabolic regulators. The FASEB Journal, 28(9), 3832-3840. doi:10.1096/fj.14-251249

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