Evidence map›Paper›PMID 15572688›Full record

ArticleMolecular and cellular biology2004

Counting of Rif1p and Rif2p on Saccharomyces cerevisiae telomeres regulates telomere length.

Daniel L Levy, Elizabeth H Blackburn

Abstract read
In one paragraph

Article in Molecular and cellular biology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
–field-weighted citation impact
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

79 citing papers in PubMed.

  1. Rap1-mediated steric hindrance protects telomeres from MRX sensing.Nature structural & molecular biology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article

19 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

2 authors.

Daniel L LevyDepartment of Biochemistry and Biophysics, University of California-San Francisco, San Francisco, CA 94143-2200, USA.
Elizabeth H Blackburn

Funding

THE FUNCTION OF TELOMERASE AND TELOMERESR01GM026259 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BLACKBURN, ELIZABETH H · 1985 to 2014
$8.9M
STRUCTURE AND FUNCTION OF TELOMERESR37GM026259 · NIGMS · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI BLACKBURN, ELIZABETH H · 1989 to 1998
–
NIGMS NIH HHS GM 26259NIGMS NIH HHS R01 GM026259NIGMS NIH HHS R37 GM026259
6 · The paper itself

Abstract

Telomere length is negatively regulated by proteins of the telomeric DNA-protein complex. Rap1p in Saccharomyces cerevisiae binds the telomeric TG(1-3) repeat DNA, and the Rap1p C terminus interacts with Rif1p and Rif2p. We investigated how these three proteins negatively regulate telomere length. We show that direct tethering of each Rif protein to a telomere shortens that telomere proportionally to the number of tethered molecules, similar to previously reported counting of Rap1p. Surprisingly, Rif proteins could also regulate telomere length even when the Rap1p C terminus was absent, and tethered Rap1p counting was completely dependent on the Rif proteins. Thus, Rap1p counting is in fact Rif protein counting. In genetic settings that cause telomeres to be abnormally long, tethering even a single Rif2p molecule was sufficient for maximal effectiveness in preventing the telomere overelongation. We show that a heterologous protein oligomerization domain, the mammalian PDZ domain, when fused to Rap1p can confer telomere length control. We propose that a nucleation and spreading mechanism is involved in forming the higher-order telomere structure that regulates telomere length.

Indexed as

TelomereBinding SitesCarrier ProteinsDNA-Binding ProteinsDNA, FungalFungal ProteinsModels, BiologicalRepressor ProteinsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsShelterin ComplexTelomere-Binding ProteinsTranscription FactorsCarrier ProteinsDNA-Binding ProteinsDNA, FungalFungal ProteinsRAP1 protein, S cerevisiaeRepressor ProteinsRIF1 protein, S cerevisiaeRIF2 protein, S cerevisiaeSaccharomyces cerevisiae ProteinsShelterin ComplexTelomere-Binding ProteinsTranscription Factors

Identifiers

PMID15572688
PMCPMC533994

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.