ArticleBiochimie2016
Kinetic analysis of bypass of 7,8-dihydro-8-oxo-2'-deoxyguanosine by the catalytic core of yeast DNA polymerase η.
Article in Biochimie, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 17 citations in OpenAlex.
- Lsm12 Mediates Deubiquitination of DNA Polymerase η To HelpApplied and environmental microbiology · 2019Article
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- Increased Processivity, Misincorporation, and Nucleotide Incorporation Efficiency in Sulfolobus solfataricus Dpo4 Thumb Domain Mutants.Applied and environmental microbiology · 2017Article
- Article
- Pseudomonas aeruginosa phage PaP1 DNA polymerase is an A-family DNA polymerase demonstrating ssDNA and dsDNA 3'-5' exonuclease activity.Virus genes · 2016Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Reactive oxygen species damage DNA bases to produce 7,8-dihydro-8-oxo-2'-deoxyguanosine (8-oxoG), which results in G:C to T:A transversions. To better understand mechanisms of dNTP incorporation opposite 8-oxoG, we performed pre-steady-state kinetic analysis of nucleotide incorporation using the catalytic core of yeast DNA polymerase η (Pol ηcore, residues 1-513) instead of full-length Pol η, eliminating potential effects of the C-terminal C2H2 sequence motif on dNTP incorporation. Kinetic analysis showed that Pol ηcore preferred to incorporate dCTP opposite 8-oxoG. A lack of a pre-steady-state kinetic burst for Pol ηcore suggested that dCTP incorporation is slower than the dissociation of the polymerase from DNA. The extension products beyond the 8-oxoG were determined by LC-MS/MS and showed that 57% of the products corresponded to the correct incorporation (C) and 43% corresponded to dATP misincorporation. More dATP was incorporated opposite 8-oxoG with a mixture of dNTPs than predicted using only a single dNTP. The kinetic analysis of 8-oxoG bypass by yeast DNA Pol ηcore provides further understanding of the mechanism of mutation at this oxidation lesion with yeast DNA polymerase η.
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Registered trials
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