Evidence map›Paper›PMID 22327026›Full record

ArticleGene2012

A telomerase-associated RecQ protein-like helicase resolves telomeric G-quadruplex structures during replication.

Jan Postberg, Maksym Tsytlonok, Daniela Sparvoli, Daniela Rhodes, Hans J Lipps

Open access · hybridAbstract read
In one paragraph

Article in Gene, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

24 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
  2. Review
  3. Mutations atMolecular and cellular biology · 2024
    Article
  4. Article
  5. Targeting MYC Regulation with Polypurine Reverse Hoogsteen Oligonucleotides.International journal of molecular sciences · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Investigating the role of G-quadruplexes atMicrobial cell (Graz, Austria) · 2022
    Article
  10. Review
  11. G-Quadruplexes at Telomeres: Friend or Foe?Molecules (Basel, Switzerland) · 2020
    Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. 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

5 authors at 3 institutions in 2 countries.

Jan PostbergCentre for Biomedical Education and Research, Institute of Cell Biology, Witten, Germany.
Maksym Tsytlonok
Daniela Sparvoli
Daniela Rhodes
Hans J Lipps
Witten/Herdecke University · DEHelios Universitätsklinikum Wuppertal · DEMedical Research Council · GB

Funding

Medical Research Council MC_U105184333
6 · The paper itself

Abstract

It is well established that G-quadruplex DNA structures form at ciliate telomeres and their formation throughout the cell-cycle by telomere-end-binding proteins (TEBPs) has been analyzed. During replication telomeric G-quadruplex structure has to be resolved to allow telomere replication by telomerase. It was shown that both phosphorylation of TEBPβ and binding of telomerase are prerequisites for this process, but probably not sufficient to unfold G-quadruplex structure in timely manner to allow replication to proceed. Here we describe a RecQ-like helicase required for unfolding of G-quadruplex structures in vivo. This helicase is highly reminiscent of human RecQ protein-like 4 helicase as well as other RecQ-like helicase found in various eukaryotes and E. coli. In situ analyses combined with specific silencing of either the telomerase or the helicase by RNAi and co-immunoprecipitation experiments demonstrate that this helicase is associated with telomerase during replication and becomes recruited to telomeres by this enzyme. In vitro assays showed that a nuclear extract prepared from cells in S-phase containing both the telomerase as well as the helicase resolves telomeric G-quadruplex structure. This finding can be incorporated into a mechanistic model about the replication of telomeric G-quadruplex structures during the cell cycle.

Indexed as

G-QuadruplexesAmino Acid SequenceDNA HelicasesDNA ReplicationGenomeImmunoprecipitationMacronucleusMolecular Sequence DataRecQ HelicasesS PhaseSporadotrichinaTelomeraseTelomereTelomere-Binding ProteinsDNA HelicasesRecQ HelicasesTelomeraseTelomere-Binding Proteins

Identifiers

PMID22327026
PMCPMC3650557
OpenAlexW1996154258

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.