Evidence map›Paper›PMID 21107010›Full record

ArticleThe Journal of biological chemistry2011

Molecular cooperation between the Werner syndrome protein and replication protein A in relation to replication fork blockage.

Amrita Machwe, Enerlyn Lozada, Marc S Wold, Guo-Min Li, David K Orren

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

33 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. RecQ Helicase Somatic Alterations in Cancer.Frontiers in molecular biosciences · 2022
    Review
  7. Article
  8. Article
  9. Review
  10. Werner Syndrome Protein and DNA Replication.International journal of molecular sciences · 2018
    Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. The BLM dissolvasome in DNA replication and repair.Cellular and molecular life sciences : CMLS · 2013
    Review
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 1 country.

Amrita MachweGraduate Center for Toxicology, University of Kentucky College of Medicine, Lexington, Kentucky 40536, USA.
Enerlyn Lozada
Marc S Wold
Guo-Min Li
David K Orren
The Graduate Center, CUNY · USUniversity of Kentucky · USUniversity of Iowa · US

Funding

Regulation WRN deacetylation by SIRT1 after DNA damageR01AG026534 · NIA · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LUO, JIANYUAN JACK · 2008 to 2012
$1.2M
Biochemical basis of WRN and RecQ helicase functionR01CA113371 · NCI · UNIVERSITY OF KENTUCKY · PI ORREN, DAVID KEITH · 2004 to 2007
$989k
Telomeric dysfunction and the premature aging and cancer-prone disease Werner synR01AG027258 · NIA · UNIVERSITY OF KENTUCKY · PI ORREN, DAVID KEITH · 2008 to 2011
$947k
NCI NIH HHS R01 CA113371NIA NIH HHS AG027258NIA NIH HHS R01 AG026534NIA NIH HHS R01 AG027258
6 · The paper itself

Abstract

The premature aging and cancer-prone disease Werner syndrome is caused by loss of function of the RecQ helicase family member Werner syndrome protein (WRN). At the cellular level, loss of WRN results in replication abnormalities and chromosomal aberrations, indicating that WRN plays a role in maintenance of genome stability. Consistent with this notion, WRN possesses annealing, exonuclease, and ATPase-dependent helicase activity on DNA substrates, with particularly high affinity for and activity on replication and recombination structures. After certain DNA-damaging treatments, WRN is recruited to sites of blocked replication and co-localizes with the human single-stranded DNA-binding protein replication protein A (RPA). In this study we examined the physical and functional interaction between WRN and RPA specifically in relation to replication fork blockage. Co-immunoprecipitation experiments demonstrated that damaging treatments that block DNA replication substantially increased association between WRN and RPA in vivo, and a direct interaction between purified WRN and RPA was confirmed. Furthermore, we examined the combined action of RPA (unmodified and hyperphosphorylation mimetic) and WRN on model replication fork and gapped duplex substrates designed to bind RPA. Even with RPA bound stoichiometrically to this gap, WRN efficiently catalyzed regression of the fork substrate. Further analysis showed that RPA could be displaced from both substrates by WRN. RPA displacement by WRN was independent of its ATPase- and helicase-dependent remodeling of the fork. Taken together, our results suggest that, upon replication blockage, WRN and RPA functionally interact and cooperate to help properly resolve replication forks and maintain genome stability.

Indexed as

DNA ReplicationAdenosine TriphosphatasesDNA DamageDNA HelicasesExodeoxyribonucleasesGenomic InstabilityHumansProtein BindingRecQ HelicasesReplication Protein AWerner Syndrome HelicaseAdenosine TriphosphatasesDNA HelicasesExodeoxyribonucleasesRecQ HelicasesReplication Protein AWerner Syndrome HelicaseWRN protein, human

Identifiers

PMID21107010
PMCPMC3030355
OpenAlexW1979485290

What OpenQuestion holds

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LicenceCC BY-NC
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.