Cited by 71DNA Repair MechanismsFungal and yeast genetics researchCarcinogens and Genotoxicity Assessment

DNA synthesis in UV-irradiated yeast

di Caprio, Laura, Cox, B.S.·1981·Mutation Research

Abstract

The amount and quality of DNA synthesized in excision-defective strains of yeast was assayed using alkaline sucrose gradients. It was observed that, in such strains, there was less newly synthesized DNA in irradiated cells and that this material was in smaller pieces than in unirradiated controls. The molecular weight was inversely proportional to dose. The low molecular weight DNA chased into normally high molecular weight material during a post-pulse incubation period. This chase was inhibited by higher doses of UV, by hydroxyurea, and required the function of the RAD18 gene. The RAD6 gene function was necessary to prevent degradation of template DNA in irradiated excision-defective strains.

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Crossref · 10.1016/0027-5107(81)90139-1

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37 of 37 references verified0 citation errors · 0 not checkable

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  • Blocked polymerases can leave the lesion and PCNA behind and re-initiate downstream via re-priming, generating numerous ssDNA gaps behind forks that likely cause strong Mec1 activation during S phase in UV-irradiated cells.

    “Blocked polymerase can leave the lesion and PCNA behind and re-initiate downstream of the lesion via a re-priming mechanism, generating numerous ssDNA gaps behind the forks, which are likely responsible for the strong activation of Mec1 during S phase in UV-irradiated cells [51,82–85].”

    From Mind the gap: keeping UV lesions in check (2011) · cites this paper as [84]

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Authors
di Caprio, L., & Cox, B. S.
Affiliations
University of Oxford (GB)
Venue
Mutation Research
Publisher
Elsevier BV
Published
1981-06
Volume
82
Issue
1
Pages
69-85
ISSN
0027-5107 (ISSN-L)
OpenAlex
W1965436872
Cited by
71
References
37
Citations by year
2022: 2 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 2 · 2013: 2 · 2012: 1
FWCI
1.24
Type
journal article
Language
en
Open access
closed
Locations
  • Mutation research. Fundamental and molecular mechanisms of mutagenesis (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
Keywords
DNA synthesis, UV irradiation, DNA repair, RAD18, Rad6, hydroxyurea, DNA fragment size
MeSH terms
Centrifugation, Density Gradient, DNA Repair, DNA Replication, DNA, Fungal, Dose-Response Relationship, Radiation, Molecular Weight, Saccharomyces cerevisiae, Templates, Genetic, Ultraviolet Rays

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