Evidence map›Paper›PMID 23506842›Full record

ArticleDNA repair2013

PCNA trimer instability inhibits translesion synthesis by DNA polymerase η and by DNA polymerase δ.

Lynne M Dieckman, M Todd Washington

Abstract read
In one paragraph

Article in DNA repair, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
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  8. The PCNA interaction motifs revisited: thinking outside the PIP-box.Cellular and molecular life sciences : CMLS · 2019
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  9. Review
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  20. Chronology in lesion tolerance gives priority to genetic variability.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Lynne M DieckmanDepartment of Biochemistry, University of Iowa College of Medicine, Iowa City, IA 52242-1109, United States.
M Todd Washington
University of Iowa · US

Funding

Mechanisms of Damaged DNA Replication in EukaryotesR01GM081433 · NIGMS · UNIVERSITY OF IOWA · PI WASHINGTON, M. TODD · 2008 to 2021
$4.2M
NIGMS NIH HHS GM081433NIGMS NIH HHS R01 GM081433
6 · The paper itself

Abstract

Translesion synthesis (TLS), the process by which DNA polymerases replicate through DNA lesions, is the source of most DNA damage-induced mutations. Sometimes TLS is carried out by replicative polymerases that have evolved to synthesize DNA on non-damaged templates. Most of the time, however, TLS is carried out by specialized translesion polymerases that have evolved to synthesize DNA on damaged templates. TLS requires the mono-ubiquitylation of the replication accessory factor proliferating cell nuclear antigen (PCNA). PCNA and ubiquitin-modified PCNA (UbPCNA) stimulate TLS by replicative and translesion polymerases. Two mutant forms of PCNA, one with an E113G substitution and one with a G178S substitution, support normal cell growth but inhibit TLS thereby reducing mutagenesis in yeast. A re-examination of the structures of both mutant PCNA proteins revealed substantial disruptions of the subunit interface that forms the PCNA trimer. Both mutant proteins have reduced trimer stability with the G178S substitution causing a more severe defect. The mutant forms of PCNA and UbPCNA do not stimulate TLS of an abasic site by either replicative Pol δ or translesion Pol η. Normal replication by Pol η was also impacted, but normal replication by Pol δ was much less affected. These findings support a model in which reduced trimer stability causes these mutant PCNA proteins to occasionally undergo conformational changes that compromise their ability to stimulate TLS by both replicative and translesion polymerases.

Indexed as

DNA ReplicationBinding SitesDNA-Directed DNA PolymeraseDNA, FungalDNA Polymerase IIIDNA RepairMutation, MissenseMutation RateProliferating Cell Nuclear AntigenProtein BindingProtein MultimerizationProtein StabilityProtein SubunitsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsUbiquitinationDNA-Directed DNA PolymeraseDNA, FungalDNA Polymerase IIIProliferating Cell Nuclear AntigenProtein SubunitsRad30 proteinSaccharomyces cerevisiae ProteinsY-Family DNA Polymerases

Identifiers

PMID23506842
PMCPMC3636165
OpenAlexW2000517603

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.