Cited by 463Telomeres, Telomerase, and SenescenceDNA Repair MechanismsDNA and Nucleic Acid Chemistry

Replication and protection of telomeres

Verdun, Ramiro E., Karlseder, Jan·2007·Nature

Abstract

During the evolution of linear genomes, it became essential to protect the natural chromosome ends to prevent triggering of the DNA-damage repair machinery and enzymatic attack. Telomeres - tightly regulated complexes consisting of repetitive G-rich DNA and specialized proteins - accomplish this task. Telomeres not only conceal linear chromosome ends from detection and inappropriate repair but also provide a buffer to counteract replication-associated shortening. Lessons from many model organisms have taught us about the complications of maintaining these specialized structures. Here, we discuss how telomeres interact and cooperate with the DNA replication and DNA-damage repair machineries.

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Crossref · 10.1038/nature05976

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  • Telomeres that can no longer exert end-protective functions are dysfunctional, and these can arise from progressive telomere attrition or perturbation of shelterin components, resulting in inappropriate chromosomal end-to-end fusions through NHEJ or HR.

    “Telomeres that can no longer exert end-protective functions are said to be dysfunctional, and these telomeres could arise either from progressive telomere attrition, or when components of the shelterin complex are perturbed, resulting in inappropriate chromosomal end-to-end fusions through the non-homologous end joining (NHEJ) or homologous recombination (HR) DNA repair pathways 17.”

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Authors
Verdun, R. E., & Karlseder, J.
Affiliations
Salk Institute for Biological Studies (US)
Venue
Nature
Published
2007-06-20
Volume
447
Issue
7147
Pages
924-931
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2086095857
Cited by
463
References
102
Citations by year
2026: 4 · 2025: 5 · 2024: 16 · 2023: 9 · 2022: 17 · 2021: 15 · 2020: 14 · 2019: 14 · 2018: 19 · 2017: 29 · 2016: 28 · 2015: 30 · 2014: 28 · 2013: 31 · 2012: 32
FWCI
4.84
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Leukemia and Lymphoma Society
  • National Institutes of Health
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
telomeres, telomere replication, telomere protection, DNA repair, chromosome ends, DNA replication, telomere shortening, telomere proteins
MeSH terms
Animals, DNA Damage, DNA Repair, DNA Replication, Humans, Neoplasms, Telomere, Cellular Senescence

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