PreprintCited by 344DNA Repair MechanismsDNA and Nucleic Acid ChemistryTelomeres, Telomerase, and Senescence

Translesion DNA synthesis in eukaryotes: A one- or two-polymerase affair

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Prakash, Satya, Prakash, Louise·2002·Genes & Development

Abstract

Cellular DNA is continually damaged by a plethora of extrinsic and intrinsic sources, including UV light from the sun and reactive oxygen species resulting from aerobic respiration. Although cells possess a variety of repair processes to remove DNA lesions, lesions that escape repair can block the replicational machinery, and there has been little understanding of the mechanisms by which eukaryotic cells overcome such blocks and promote the continuity of the newly replicated DNA strand. The past three years, however, have witnessed phenomenal progress in this area of research, and here we highlight the important findings and major conclusions that have emerged regarding translesion DNA synthesis (TLS) in eukaryotes.

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  • Certain polymerases like Pol ζ and Pol η are reported to be particularly promiscuous at mismatch extension, which may reflect their special roles in extending damaged primer-templates following incorporation opposite a lesion by another polymerase.

    “Certain polymerases like Pol ␨ and Pol are reported to be particularly promiscuous at mismatch extension (10), which may reflect their special roles in extending damaged primer-templates following incorporation opposite a lesion by another polymerase (10).”

    From DNA Replication Fidelity (2004) · cites this paper as [10]

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Authors
Prakash, S., & Prakash, L.
Affiliations
The University of Texas Medical Branch at Galveston (US)
Venue
Genes & Development
Published
2002-08-01
Volume
16
Issue
15
Pages
1872-1883
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2139137226
Cited by
344
References
85
Citations by year
2026: 2 · 2025: 6 · 2024: 8 · 2023: 5 · 2022: 6 · 2021: 8 · 2020: 11 · 2019: 8 · 2018: 7 · 2017: 10 · 2016: 14 · 2015: 12 · 2014: 10 · 2013: 11 · 2012: 21
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health
Topics
  • 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
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
translesion synthesis, DNA polymerase, DNA replication, DNA damage, replication fork stalling, DNA repair, UV-induced DNA damage, reactive oxygen species, eukaryotic DNA replication
MeSH terms
Y-Family DNA Polymerases, Animals, Bacterial Proteins, DNA, DNA Damage, DNA-Directed DNA Polymerase, Eukaryotic Cells, Humans, Models, Molecular, Neoplastic Syndromes, Hereditary, Nucleic Acid Conformation, Prokaryotic Cells, Protein Conformation, Proteins, Pyrimidine Dimers, Substrate Specificity, Xeroderma Pigmentosum, Archaeal Proteins, Base Pair Mismatch, Saccharomyces cerevisiae Proteins, Escherichia coli Proteins, Mice

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