Evidence map›Paper›PMID 29127155›Full record

ArticleThe EMBO journal2017

Tumor suppressor Tsc1 is a new Hsp90 co-chaperone that facilitates folding of kinase and non-kinase clients.

Mark R Woodford, Rebecca A Sager, Elijah Marris, Diana M Dunn, Adam R Blanden, Ryan L Murphy, Nicholas Rensing, Oleg Shapiro, Barry Panaretou, Chrisostomos Prodromou and 6 more

Open access · hybridAbstract read
In one paragraph

Article in The EMBO journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

63 citing papers in PubMed, 89 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. The role of Aha1 in cancer and neurodegeneration.Frontiers in molecular neuroscience · 2024
    Review
  18. Review
  19. Article
  20. Article

3 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

16 authors at 4 institutions in 2 countries.

Mark R WoodfordDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Rebecca A SagerDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Elijah MarrisDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Diana M DunnDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Adam R BlandenUpstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY, USA.
Ryan L MurphyDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Nicholas RensingDepartment of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
Oleg ShapiroDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Barry PanaretouInstitute of Pharmaceutical Science, King's College London, London, UK.
Chrisostomos ProdromouGenome Damage and Stability Centre, University of Sussex, Brighton, UK.
Stewart N LohUpstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY, USA.
David H GutmannDepartment of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
Dimitra BourbouliaDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Gennady BratslavskyDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA.
Michael WongDepartment of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
Mehdi MollapourDepartment of Urology, SUNY Upstate Medical University, Syracuse, NY, USA mollapom@upstate.edu.ORCID 0000-0002-2144-1361
SUNY Upstate Medical University · USWashington University in St. Louis · USKing's College London · GBUniversity of Sussex · GB

Funding

Design of switchable proteins and enzymes.R01GM115762 · NIGMS · UPSTATE MEDICAL UNIVERSITY · PI LOH, STEWART N · 2015 to 2018
$1.3M
Crosstalk between post-translational regulations of the FNIP co-chaperones and their impact on Hsp90 chaperone function and drug bindingR01GM124256 · NIGMS · UPSTATE MEDICAL UNIVERSITY · PI MOLLAPOUR, MEHDI · 2017 to 2020
$1.3M
NIGMS NIH HHS R01 GM115762NIGMS NIH HHS R01 GM124256Wellcome Trust 095605/Z11/Z
6 · The paper itself

Abstract

The tumor suppressors Tsc1 and Tsc2 form the tuberous sclerosis complex (TSC), a regulator of mTOR activity. Tsc1 stabilizes Tsc2; however, the precise mechanism involved remains elusive. The molecular chaperone heat-shock protein 90 (Hsp90) is an essential component of the cellular homeostatic machinery in eukaryotes. Here, we show that Tsc1 is a new co-chaperone for Hsp90 that inhibits its ATPase activity. The C-terminal domain of Tsc1 (998-1,164 aa) forms a homodimer and binds to both protomers of the Hsp90 middle domain. This ensures inhibition of both subunits of the Hsp90 dimer and prevents the activating co-chaperone Aha1 from binding the middle domain of Hsp90. Conversely, phosphorylation of Aha1-Y223 increases its affinity for Hsp90 and displaces Tsc1, thereby providing a mechanism for equilibrium between binding of these two co-chaperones to Hsp90. Our findings establish an active role for Tsc1 as a facilitator of Hsp90-mediated folding of kinase and non-kinase clients-including Tsc2-thereby preventing their ubiquitination and proteasomal degradation.

Indexed as

HEK293 CellsHSP90 Heat-Shock ProteinsHumansPhosphorylationPhosphotransferasesProteasome Endopeptidase ComplexProtein FoldingProteolysisTuberous Sclerosis Complex 1 ProteinTuberous Sclerosis Complex 2 ProteinTumor Suppressor ProteinsUbiquitinationHSP90 Heat-Shock ProteinsPhosphotransferasesProteasome Endopeptidase ComplexTSC1 protein, humanTSC2 protein, humanTuberous Sclerosis Complex 1 ProteinTuberous Sclerosis Complex 2 ProteinTumor Suppressor ProteinsAha1heat‐shock protein 90Tsc1Tsc2tuberous sclerosis complex

Identifiers

PMID29127155
PMCPMC5730846
OpenAlexW2767266192

What OpenQuestion holds

Textmetadata
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.