Evidence map›Paper›PMID 19165339›Full record

ArticlePloS one2009

Interplay of Mre11 nuclease with Dna2 plus Sgs1 in Rad51-dependent recombinational repair.

Martin E Budd, Judith L Campbell

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

48 citing papers in PubMed, 65 citations in OpenAlex.

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  7. Sae2 antagonizes Rad9 accumulation at DNA double-strand breaks to attenuate checkpoint signaling and facilitate end resection.Proceedings of the National Academy of Sciences of the United States of America · 2018
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  17. End resection at double-strand breaks: mechanism and regulation.Cold Spring Harbor perspectives in biology · 2014
    Review
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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

2 authors at 1 institution in 1 country.

Martin E BuddDivisions of Biology and Chemistry, Caltech, Braun Laboratories, Pasadena, California, United States of America.
Judith L Campbell
California Institute of Technology · US

Funding

NIGMS NIH HHS GM087666
6 · The paper itself

Abstract

The Mre11/Rad50/Xrs2 complex initiates IR repair by binding to the end of a double-strand break, resulting in 5' to 3' exonuclease degradation creating a single-stranded 3' overhang competent for strand invasion into the unbroken chromosome. The nuclease(s) involved are not well understood. Mre11 encodes a nuclease, but it has 3' to 5', rather than 5' to 3' activity. Furthermore, mutations that inactivate only the nuclease activity of Mre11 but not its other repair functions, mre11-D56N and mre11-H125N, are resistant to IR. This suggests that another nuclease can catalyze 5' to 3' degradation. One candidate nuclease that has not been tested to date because it is encoded by an essential gene is the Dna2 helicase/nuclease. We recently reported the ability to suppress the lethality of a dna2Delta with a pif1Delta. The dna2Delta pif1Delta mutant is IR-resistant. We have determined that dna2Delta pif1Delta mre11-D56N and dna2Delta pif1Delta mre11-H125N strains are equally as sensitive to IR as mre11Delta strains, suggesting that in the absence of Dna2, Mre11 nuclease carries out repair. The dna2Delta pif1Delta mre11-D56N triple mutant is complemented by plasmids expressing Mre11, Dna2 or dna2K1080E, a mutant with defective helicase and functional nuclease, demonstrating that the nuclease of Dna2 compensates for the absence of Mre11 nuclease in IR repair, presumably in 5' to 3' degradation at DSB ends. We further show that sgs1Delta mre11-H125N, but not sgs1Delta, is very sensitive to IR, implicating the Sgs1 helicase in the Dna2-mediated pathway.

Indexed as

DNA RepairGene Expression Regulation, FungalRecombination, GeneticAllelesDNA DamageDNA HelicasesEndodeoxyribonucleasesExodeoxyribonucleasesModels, BiologicalMutationPlasmidsRad51 RecombinaseRecQ HelicasesSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsX-RaysDNA2 protein, S cerevisiaeDNA HelicasesEndodeoxyribonucleasesExodeoxyribonucleasesMRE11 protein, S cerevisiaeRAD51 protein, S cerevisiaeRad51 RecombinaseRecQ HelicasesSaccharomyces cerevisiae ProteinsSGS1 protein, S cerevisiae

Identifiers

PMID19165339
PMCPMC2625443
OpenAlexW2058279229

What OpenQuestion holds

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LicenceCC BY
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.