Evidence map›Paper›PMID 21399625›Full record

ArticleNature2011

TERRA and hnRNPA1 orchestrate an RPA-to-POT1 switch on telomeric single-stranded DNA.

Rachel Litman Flynn, Richard C Centore, Roderick J O'Sullivan, Rekha Rai, Alice Tse, Zhou Songyang, Sandy Chang, Jan Karlseder, Lee Zou

Abstract read
In one paragraph

Article in Nature, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 214 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
214citing papers in PubMed, 1 pooled it
12.9field-weighted citation impact, top 1% 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

214 citing papers in PubMed, 1 synthesis or guideline pooled it, 342 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Fission yeast RPA-TERT-Tpz1bioRxiv : the preprint server for biology · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Alternative Lengthening of Telomeres: The Need forInternational journal of molecular sciences · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Telomere Reprogramming and Cellular Metabolism: Is There a Link?International journal of molecular sciences · 2024
    Review
  17. HeterozygousGenes & development · 2024
    Article
  18. Article
  19. Article
  20. Review

154 more citing papers are in PubMed but not listed here.

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

9 authors at 5 institutions in 1 country.

Rachel Litman FlynnMassachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, Massachusetts 02129, USA.
Richard C Centore
Roderick J O'Sullivan
Rekha Rai
Alice Tse
Zhou Songyang
Sandy Chang
Jan Karlseder
Lee Zou
Harvard University · USMassachusetts General Hospital · USSalk Institute for Biological Studies · USYale University · USBaylor College of Medicine · US

Funding

MOLECULAR IMMUNOLOGY AND TUMOR BIOLOGYT32CA009216 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI David Michael Langenau · 1985 to 2026
$10.6M
Regulation of the ATR Checkpoint Kinase by DNA DamageR01GM076388 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI ZOU, LEE · 2006 to 2018
$4.3M
Telomere induced senescence as a supressor of tumorigenesisR01CA129037 · NCI · YALE UNIVERSITY · PI CHANG, SANDY S · 2007 to 2017
$3.1M
Telomeric Function in Aging SyndromesR01AG025837 · NIA · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI KARLSEDER, JAN · 2006 to 2010
$1.5M
Regulating the ATR checkpoint through protein ubiquitylationF32GM089150 · NIGMS · MASSACHUSETTS GENERAL HOSPITAL · PI CENTORE, RICHARD C. · 2009 to 2012
$152k
NCI NIH HHS 5T32CA009216-28NCI NIH HHS CA129037NCI NIH HHS R01 CA129037NCI NIH HHS T32 CA009216NIA NIH HHS AG025837NIA NIH HHS R01 AG025837NIGMS NIH HHS F32 GM089150NIGMS NIH HHS F32-GM089150NIGMS NIH HHS GM06525NIGMS NIH HHS GM076388NIGMS NIH HHS R01 GM076388PHS HHS C133249
6 · The paper itself

Abstract

Maintenance of telomeres requires both DNA replication and telomere 'capping' by shelterin. These two processes use two single-stranded DNA (ssDNA)-binding proteins, replication protein A (RPA) and protection of telomeres 1 (POT1). Although RPA and POT1 each have a critical role at telomeres, how they function in concert is not clear. POT1 ablation leads to activation of the ataxia telangiectasia and Rad3-related (ATR) checkpoint kinase at telomeres, suggesting that POT1 antagonizes RPA binding to telomeric ssDNA. Unexpectedly, we found that purified POT1 and its functional partner TPP1 are unable to prevent RPA binding to telomeric ssDNA efficiently. In cell extracts, we identified a novel activity that specifically displaces RPA, but not POT1, from telomeric ssDNA. Using purified protein, here we show that the heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1) recapitulates the RPA displacing activity. The RPA displacing activity is inhibited by the telomeric repeat-containing RNA (TERRA) in early S phase, but is then unleashed in late S phase when TERRA levels decline at telomeres. Interestingly, TERRA also promotes POT1 binding to telomeric ssDNA by removing hnRNPA1, suggesting that the re-accumulation of TERRA after S phase helps to complete the RPA-to-POT1 switch on telomeric ssDNA. Together, our data suggest that hnRNPA1, TERRA and POT1 act in concert to displace RPA from telomeric ssDNA after DNA replication, and promote telomere capping to preserve genomic integrity.

Indexed as

Ataxia Telangiectasia Mutated ProteinsBinding, CompetitiveCell Cycle ProteinsCell ExtractsDNA ReplicationDNA, Single-StrandedHeLa CellsHeterogeneous Nuclear Ribonucleoprotein A1Heterogeneous-Nuclear Ribonucleoprotein Group A-BHumansProtein BindingReplication Protein ARNAShelterin ComplexS PhaseTelomereACD protein, humanAtaxia Telangiectasia Mutated ProteinsATR protein, humanCell Cycle ProteinsCell ExtractsDNA, Single-StrandedHeterogeneous Nuclear Ribonucleoprotein A1Heterogeneous-Nuclear Ribonucleoprotein Group A-BhnRNPA1 protein, humanPOT1 protein, humanReplication Protein ARNAShelterin ComplexTelomere-Binding Proteins

Identifiers

PMID21399625
PMCPMC3078637
OpenAlexW2062046532

What OpenQuestion holds

Textmetadata
LicenceTDM
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.