Evidence map›Paper›PMID 25474551›Full record

ArticlePLoS genetics2014

Increased and imbalanced dNTP pools symmetrically promote both leading and lagging strand replication infidelity.

Robert J Buckland, Danielle L Watt, Balasubramanyam Chittoor, Anna Karin Nilsson, Thomas A Kunkel, Andrei Chabes

Open access · goldAbstract read
In one paragraph

Article in PLoS genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 65 citations in OpenAlex.

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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

6 authors at 2 institutions in 2 countries.

Robert J BucklandDepartment of Medical Biochemistry and Biophysics, Umea University, Umea, Sweden; Laboratory for Molecular Infection Medicine Sweden (MIMS), Umea University, Umea, Sweden.
Danielle L WattLaboratory of Molecular Genetics and Laboratory of Structural Biology, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, North Carolina, United States of America.
Balasubramanyam ChittoorDepartment of Medical Biochemistry and Biophysics, Umea University, Umea, Sweden.
Anna Karin NilssonDepartment of Medical Biochemistry and Biophysics, Umea University, Umea, Sweden.
Thomas A KunkelLaboratory of Molecular Genetics and Laboratory of Structural Biology, National Institute of Environmental Health Sciences, NIH, DHHS, Research Triangle Park, North Carolina, United States of America.
Andrei ChabesDepartment of Medical Biochemistry and Biophysics, Umea University, Umea, Sweden; Laboratory for Molecular Infection Medicine Sweden (MIMS), Umea University, Umea, Sweden.
Umeå University · SENational Institute of Environmental Health Sciences · US

Funding

Structure-Function Studies Of DNA Replication FidelityZIAES065070 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI KUNKEL, THOMAS A · 2009 to 2025
$30.6M
Structure-Function Studies Of DNA Replication FidelityZ01ES065070 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI KUNKEL, THOMAS A · 1991 to 2008
$4.3M
Intramural NIH HHS Z01 ES065070NIEHS NIH HHS Z01 ES065070
6 · The paper itself

Abstract

The fidelity of DNA replication requires an appropriate balance of dNTPs, yet the nascent leading and lagging strands of the nuclear genome are primarily synthesized by replicases that differ in subunit composition, protein partnerships and biochemical properties, including fidelity. These facts pose the question of whether imbalanced dNTP pools differentially influence leading and lagging strand replication fidelity. Here we test this possibility by examining strand-specific replication infidelity driven by a mutation in yeast ribonucleotide reductase, rnr1-Y285A, that leads to elevated dTTP and dCTP concentrations. The results for the CAN1 mutational reporter gene present in opposite orientations in the genome reveal that the rates, and surprisingly even the sequence contexts, of replication errors are remarkably similar for leading and lagging strand synthesis. Moreover, while many mismatches driven by the dNTP pool imbalance are efficiently corrected by mismatch repair, others are repaired less efficiently, especially those in sequence contexts suggesting reduced proofreading due to increased mismatch extension driven by the high dTTP and dCTP concentrations. Thus the two DNA strands of the nuclear genome are at similar risk of mutations resulting from this dNTP pool imbalance, and this risk is not completely suppressed even when both major replication error correction mechanisms are genetically intact.

Indexed as

Base Pair MismatchBase SequenceDeoxyadenine NucleotidesDeoxycytosine NucleotidesDeoxyguanine NucleotidesDNA Mismatch RepairDNA ReplicationGenomic InstabilityMolecular Sequence DataMutagenesisMutation RateOrganisms, Genetically ModifiedSaccharomyces cerevisiaeThymine Nucleotides2'-deoxyadenosine triphosphate2'-deoxycytidine 5'-triphosphateDeoxyadenine NucleotidesDeoxycytosine NucleotidesDeoxyguanine Nucleotidesdeoxyguanosine triphosphatethymidine 5'-triphosphateThymine Nucleotides

Identifiers

PMID25474551
PMCPMC4256292
OpenAlexW2142808389

What OpenQuestion holds

Textmetadata
LicenceCC0
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.