Features of trinucleotide repeat instability in vivo

Unstable repeats are associated with various types of cancer and have been implicated in more than 40 neurode-generative disorders. Trinucleotide repeats are located in non-coding and coding regions of the genome. Studies of bacteria, yeast, mice and man have helped to unravel some features of the m...

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Veröffentlicht in:Cell research 2008, Vol.18 (1), p.198-213
Hauptverfasser: Kovtun, Irina V, McMurray, Cynthia T
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description Unstable repeats are associated with various types of cancer and have been implicated in more than 40 neurode-generative disorders. Trinucleotide repeats are located in non-coding and coding regions of the genome. Studies of bacteria, yeast, mice and man have helped to unravel some features of the mechanism of trinucleotide expansion. Looped DNA structures comprising trinucleotide repeats are processed during replication and/or repair to generate deletions or expansions. Most in vivo data are consistent with a model in which expansion and deletion occur by different mechanisms. In mammals, microsatellite instability is complex and appears to be influenced by genetic, epigenetic and developmental factors.
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; SpringerLink Journals - AutoHoldings
subjects Animals
Base Sequence
Biomedical and Life Sciences
Cell Biology
Chromatin - physiology
Deoxyribonucleic acid
DNA
Gene Frequency
Genetic Diseases, Inborn - epidemiology
Genetic Diseases, Inborn - genetics
Humans
Incidence
Life Sciences
Mammals
Microsatellite Instability
Models, Biological
Molecular Sequence Data
Nucleic Acid Conformation
Regulatory Elements, Transcriptional - physiology
review
Trinucleotide Repeats - genetics
Trinucleotide Repeats - physiology
Yeasts
三核苷酸
不稳定性
生物结构
title Features of trinucleotide repeat instability in vivo
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