Evidence map›Paper›PMID 17954556›Full record

ArticleMolecular and cellular biology2008

The hsp90 molecular chaperone modulates multiple telomerase activities.

Oyetunji A Toogun, Diane C Dezwaan, Brian C Freeman

Abstract read
In one paragraph

Article in Molecular and cellular biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

48 citing papers in PubMed, 90 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. HSP90 multi-functionality in cancer.Frontiers in immunology · 2024
    Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Regulation of human telomerase in homeostasis and disease.Nature reviews. Molecular cell biology · 2020
    Review
  16. Review
  17. Article
  18. Article
  19. The Nuclear and DNA-Associated Molecular Chaperone Network.Cold Spring Harbor perspectives in biology · 2019
    Review
  20. 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

3 authors at 1 institution in 1 country.

Oyetunji A ToogunDepartment of Cell and Developmental Biology, University of Illinois, Urbana-Champaign, 601 S. Goodwin Avenue, Urbana, IL 61801, USA.
Diane C Dezwaan
Brian C Freeman
University of Illinois Urbana-Champaign · US

Funding

Dynamic signaling by intracellular hormone receptorsR01DK074270 · NIDDK · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI FREEMAN, BRIAN C · 2006 to 2010
$1.5M
NIDDK NIH HHS DK074270NIDDK NIH HHS R01 DK074270
6 · The paper itself

Abstract

The Hsp90 molecular chaperone is a highly abundant eukaryotic molecular chaperone. While it is understood that Hsp90 modulates a significant number of proteins, the mechanistic contributions made by Hsp90 to a client protein typically are not well understood. Here we investigate the yeast Hsp90 regulatory roles with telomerase. Telomerase lengthens chromosome termini by specifically associating with single-stranded telomeric DNA and appending nucleotides by reverse transcription. We have found that the yeast Hsp90 homolog Hsp82p promotes both telomerase DNA binding and nucleotide addition properties. By isolating telomerase from different allelic backgrounds we observed distinct defects. For example, in an hsp82 T101I strain telomerase displayed decreased nucleotide processivity, whereas both DNA binding and extension activities were lowered in a G170D background. The decline in telomerase DNA binding correlated with a loss of Hsp82p association. No matter the defect, telomerase activity was recovered upon Hsp82p addition. Importantly, telomere length and telomerase telomere occupancy was yeast Hsp90 dependent. Taken together, our results indicate that Hsp82p promotes telomerase DNA association and facilitates DNA extension once telomerase is engaged with the DNA.

Indexed as

Adenosine TriphosphatasesDNA, FungalGlycineHSP90 Heat-Shock ProteinsHumansMutationProtein BindingSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsTelomeraseAdenosine TriphosphatasesDNA, FungalGlycineHSP82 protein, S cerevisiaeHSP90 Heat-Shock ProteinsSaccharomyces cerevisiae ProteinsTelomerase

Identifiers

PMID17954556
PMCPMC2223280
OpenAlexW2116682918

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.