Cited by 934Genetic Neurodegenerative DiseasesGenetic factors in colorectal cancerGenetics and Neurodevelopmental Disorders

Expandable DNA repeats and human disease

Mirkin, Sergei M.·2007·Nature

Abstract

Nearly 30 hereditary disorders in humans result from an increase in the number of copies of simple repeats in genomic DNA. These DNA repeats seem to be predisposed to such expansion because they have unusual structural features, which disrupt the cellular replication, repair and recombination machineries. The presence of expanded DNA repeats alters gene expression in human cells, leading to disease. Surprisingly, many of these debilitating diseases are caused by repeat expansions in the non-coding regions of their resident genes. It is becoming clear that the peculiar structures of repeat-containing transcripts are at the heart of the pathogenesis of these diseases.

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Crossref · 10.1038/nature05977

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  • A small number of specific normal-length STRs undergo somatic or germline expansion and transition to intermediate, pre-mutation, and mutation repeat unit tract lengths.

    “By a process that is poorly understood, a small number of specific normal-length STRs undergo somatic or germline expansion and transition to intermediate, pre-mutation, and mutation (affected) repeat unit tract lengths (Mirkin, 2007; Pearson et al., 2005).”
  • More than 25 inherited human disorders are caused by the unstable expansion of repetitive DNA sequences termed short tandem repeats (STRs).

    “More than 25 inherited human disorders are caused by the unstable expansion of repetitive DNA sequences termed short tandem repeats (STRs).”
  • Studies in model organisms show that mutations in genes encoding key machinery involved in DNA replication, repair, and recombination are linked to STR instability.

    “Studies in model organisms show that mutations in genes encoding key machinery involved in DNA replication, repair, and recombination are linked to STR instability (Iyer et al., 2015; McMurray, 2010; Mirkin, 2007; Pearson et al., 2005).”

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Authors
Mirkin, S. M.
Affiliations
Tufts University (US)
Corresponding author
Mirkin, Sergei M.
Venue
Nature
Published
2007-06
Volume
447
Issue
7147
Pages
932-940
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2131173813
Cited by
934
References
100
Citations by year
2026: 20 · 2025: 45 · 2024: 44 · 2023: 43 · 2022: 41 · 2021: 47 · 2020: 45 · 2019: 51 · 2018: 66 · 2017: 72 · 2016: 63 · 2015: 47 · 2014: 55 · 2013: 54 · 2012: 59
FWCI
3.42
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Genetic factors in colorectal cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
trinucleotide repeat expansion, genetic disorders, DNA replication, DNA repair, recombination, gene expression, non-coding regions, pathogenesis
MeSH terms
Animals, Disease, DNA Repair, DNA Replication, Humans, Models, Genetic, RNA, DNA Repeat Expansion

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