Evidence map›Paper›PMID 21423195›Full record

ArticleNature structural & molecular biology2011

Dominant prion mutants induce curing through pathways that promote chaperone-mediated disaggregation.

Susanne DiSalvo, Aaron Derdowski, John A Pezza, Tricia R Serio

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing 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

34 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Multiple aspects of amyloid dynamicsFrontiers in molecular neuroscience · 2024
    Article
  5. Article
  6. Design of a New [Frontiers in molecular neuroscience · 2019
    Article
  7. Article
  8. Review
  9. Article
  10. Prions, Chaperones, and Proteostasis in Yeast.Cold Spring Harbor perspectives in biology · 2017
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Overexpression of Q-rich prion-like proteins suppresses polyQ cytotoxicity and alters the polyQ interactome.Proceedings of the National Academy of Sciences of the United States of America · 2014
    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

4 authors.

Susanne DiSalvoDepartment of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island, USA.
Aaron Derdowski
John A Pezza
Tricia R Serio

Funding

TRAINING IN MOLECULAR &CELL BIOLOGY &BIOCHEMISTRYT32GM007601 · NIGMS · BROWN UNIVERSITY · PI MOWRY, KIMBERLY L. · 1985 to 2019
$6.4M
Prion Cycle Regulation In VivoR01GM069802 · NIGMS · UNIVERSITY OF ARIZONA · PI SERIO, TRICIA R. · 2006 to 2014
$2.7M
In vivo analysis of Dynamic protein conformationsF32GM080907 · NIGMS · BROWN UNIVERSITY · PI PEZZA, JOHN ANTHONY · 2007 to 2009
$148k
Investigating the Mechanism of Prion Curing by [PSI+] No More MutationsF31AG032818 · NIA · BROWN UNIVERSITY · PI DISALVO, SUSANNE · 2008 to 2010
$81k
Role of the Actin Cytoskeleton in Yeast Prion PropagationF32GM085976 · NIGMS · BROWN UNIVERSITY · PI DERDOWSKI, AARON · 2008 to 2009
$72k
NIA NIH HHS AG032818NIA NIH HHS F31 AG032818NIGMS NIH HHS F32 GM080907NIGMS NIH HHS F32 GM085976NIGMS NIH HHS GM069802NIGMS NIH HHS GM080907NIGMS NIH HHS GM085976NIGMS NIH HHS R01 GM069802NIGMS NIH HHS T32 GM007601
6 · The paper itself

Abstract

Protein misfolding underlies many neurodegenerative diseases, including the transmissible spongiform encephalopathies (prion diseases). Although cells typically recognize and process misfolded proteins, prion proteins evade protective measures by forming stable, self-replicating aggregates. However, coexpression of dominant-negative prion mutants can overcome aggregate accumulation and disease progression through currently unknown pathways. Here we determine the mechanisms by which two mutants of the Saccharomyces cerevisiae Sup35 protein cure the [PSI(+)] prion. We show that both mutants incorporate into wild-type aggregates and alter their physical properties in different ways, diminishing either their assembly rate or their thermodynamic stability. Whereas wild-type aggregates are recalcitrant to cellular intervention, mixed aggregates are disassembled by the molecular chaperone Hsp104. Thus, rather than simply blocking misfolding, dominant-negative prion mutants target multiple events in aggregate biogenesis to enhance their susceptibility to endogenous quality-control pathways.

Indexed as

Genes, DominantMutationMolecular ChaperonesPrionsMolecular ChaperonesPrions

Identifiers

PMID21423195
PMCPMC3082495

What OpenQuestion holds

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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.