Evidence map›Paper›PMID 25122752›Full record

ArticleNucleic acids research2014

The 9-1-1 checkpoint clamp stimulates DNA resection by Dna2-Sgs1 and Exo1.

Greg H P Ngo, Lata Balakrishnan, Marion Dubarry, Judith L Campbell, David Lydall

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

36 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
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  4. Mechanisms of loading and release of the 9-1-1 checkpoint clamp.Nature structural & molecular biology · 2022
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  8. Review
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  10. CaMolecular cell · 2019
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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

5 authors at 3 institutions in 2 countries.

Greg H P NgoInstitute for Cell and Molecular Biosciences (ICaMB), Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK.
Lata BalakrishnanDepartment of Biochemistry and Biophysics, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA.
Marion DubarryInstitute for Cell and Molecular Biosciences (ICaMB), Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK.
Judith L CampbellDivisions of Biology and Chemistry, Caltech, Braun Laboratories, Pasadena, CA 91125, USA.
David LydallInstitute for Cell and Molecular Biosciences (ICaMB), Medical School, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK d.a.lydall@ncl.ac.uk.
Newcastle University · GBCalifornia Institute of Technology · USUniversity of Rochester · US

Funding

Regulating Pathways and Fidelity of DNA Replication and Repair by AcetylationR00GM098328 · NIGMS · INDIANA UNIVERSITY INDIANAPOLIS · PI BALAKRISHNAN, LATA · 2014 to 2016
$746k
Regulating Pathways and Fidelity of DNA Replication and Repair by AcetylationK99GM098328 · NIGMS · UNIVERSITY OF ROCHESTER · PI BALAKRISHNAN, LATA · 2012 to 2013
$180k
Cancer Research UK 13314Medical Research Council MR/L001284/1NIGMS NIH HHS GM098328NIGMS NIH HHS GM100186NIGMS NIH HHS R00 GM098328Wellcome Trust 075294
6 · The paper itself

Abstract

Single-stranded DNA (ssDNA) at DNA ends is an important regulator of the DNA damage response. Resection, the generation of ssDNA, affects DNA damage checkpoint activation, DNA repair pathway choice, ssDNA-associated mutation and replication fork stability. In eukaryotes, extensive DNA resection requires the nuclease Exo1 and nuclease/helicase pair: Dna2 and Sgs1(BLM). How Exo1 and Dna2-Sgs1(BLM) coordinate during resection remains poorly understood. The DNA damage checkpoint clamp (the 9-1-1 complex) has been reported to play an important role in stimulating resection but the exact mechanism remains unclear. Here we show that the human 9-1-1 complex enhances the cleavage of DNA by both DNA2 and EXO1 in vitro, showing that the resection-stimulatory role of the 9-1-1 complex is direct. We also show that in Saccharomyces cerevisiae, the 9-1-1 complex promotes both Dna2-Sgs1 and Exo1-dependent resection in response to uncapped telomeres. Our results suggest that the 9-1-1 complex facilitates resection by recruiting both Dna2-Sgs1 and Exo1 to sites of resection. This activity of the 9-1-1 complex in supporting resection is strongly inhibited by the checkpoint adaptor Rad9(53BP1). Our results provide important mechanistic insights into how DNA resection is regulated by checkpoint proteins and have implications for genome stability in eukaryotes.

Indexed as

Cell Cycle ProteinsDNADNA HelicasesExodeoxyribonucleasesGene DeletionHumansRecQ HelicasesSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsTelomereCell Cycle ProteinsDNADNA2 protein, humanDNA2 protein, S cerevisiaeDNA Helicasesexodeoxyribonuclease IExodeoxyribonucleasesRecQ HelicasesSaccharomyces cerevisiae ProteinsSGS1 protein, S cerevisiae

Identifiers

PMID25122752
PMCPMC4176354
OpenAlexW2161639057

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.