Evidence map›Paper›PMID 20515974›Full record

ArticleThe Plant cell2010

Protection of Telomeres 1 is required for telomere integrity in the moss Physcomitrella patens.

Eugene V Shakirov, Pierre-François Perroud, Andrew D Nelson, Maren E Cannell, Ralph S Quatrano, Dorothy E Shippen

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.5field-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

25 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Telomere Length Variation in Model Bryophytes.Plants (Basel, Switzerland) · 2024
    Article
  4. Article
  5. Article
  6. Quantification of 8-International journal of molecular sciences · 2022
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Extending the model of Arabidopsis telomere length and composition across Brassicaceae.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2014
    Article
  18. Article
  19. Article
  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

6 authors at 2 institutions in 1 country.

Eugene V ShakirovDepartment of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843-2128, USA.
Pierre-François Perroud
Andrew D Nelson
Maren E Cannell
Ralph S Quatrano
Dorothy E Shippen
Texas A&M University · USWashington University in St. Louis · US

Funding

Telomere Structure and Function in ArabidopsisR01GM065383 · NIGMS · TEXAS A&M UNIVERSITY SYSTEM · PI SHIPPEN, DOROTHY · 2002 to 2023
$6.8M
NIGMS NIH HHS GM065383NIGMS NIH HHS R01 GM065383
6 · The paper itself

Abstract

In vertebrates, the single-stranded telomeric DNA binding protein Protection of Telomeres 1 (POT1) shields chromosome ends and prevents them from eliciting a DNA damage response. By contrast, Arabidopsis thaliana encodes two divergent full-length POT1 paralogs that do not exhibit telomeric DNA binding in vitro and have evolved to mediate telomerase regulation instead of chromosome end protection. To further investigate the role of POT1 in plants, we established the moss Physcomitrella patens as a new model for telomere biology and a counterpoint to Arabidopsis. The sequence and architecture of the telomere tract is similar in P. patens and Arabidopsis, but P. patens harbors only a single-copy POT1 gene. Unlike At POT1 proteins, Pp POT1 efficiently bound single-stranded telomeric DNA in vitro. Deletion of the P. patens POT1 gene resulted in the rapid onset of severe developmental defects and sterility. Although telomerase activity levels were unperturbed, telomeres were substantially shortened, harbored extended G-overhangs, and engaged in end-to-end fusions. We conclude that the telomere capping function of POT1 is conserved in early diverging land plants but is subsequently lost in Arabidopsis.

Indexed as

Amino Acid SequenceBryopsidaDNA, PlantDNA, Single-StrandedGene DeletionGenetic Complementation TestGenomic InstabilityMolecular Sequence DataPlant ProteinsSequence AlignmentTelomereTelomere-Binding ProteinsDNA, PlantDNA, Single-StrandedPlant ProteinsTelomere-Binding Proteins

Identifiers

PMID20515974
PMCPMC2910979
OpenAlexW2151863902

What OpenQuestion holds

Textmetadata
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.