Evidence map›Paper›PMID 20679490›Full record

ArticleMolecular and cellular biology2010

Distinct subregions of Swi1 manifest striking differences in prion transmission and SWI/SNF function.

Zhiqiang Du, Emily T Crow, Hyun Seok Kang, Liming Li

Abstract read
In one paragraph

Article in Molecular and cellular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

32 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. How Big Is the Yeast Prion Universe?International journal of molecular sciences · 2023
    Review
  5. Article
  6. Article
  7. Article
  8. Protein aggregation and the evolution of stress resistance in clinical yeast.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Analysis of [SWIMolecular microbiology · 2017
    Article
  18. Article
  19. Review
  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.

Zhiqiang DuDepartment of Molecular Pharmacology and Biological Chemistry, Feinberg School of Medicine, Northwestern University, Searle 5-474, MC S205, 320 E. Superior Street, Chicago, IL 60611, USA.
Emily T Crow
Hyun Seok Kang
Liming Li

Funding

Elucidating the Relations of Heat Shock Factors, Molecular Chaperones and PrionsR01NS056086 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI LI, LIMING · 2008 to 2012
$1.8M
NINDS NIH HHS R01 NS056086NINDS NIH HHS R01NS056086
6 · The paper itself

Abstract

We have recently reported that the yeast chromatin-remodeling factor Swi1 can exist as a prion, [SWI(+)], demonstrating a link between prionogenesis and global transcriptional regulation. To shed light on how the Swi1 conformational switch influences Swi1 function and to define the sequence and structural requirements for [SWI(+)] formation and propagation, we functionally dissected the Swi1 molecule. We show here that the [SWI(+)] prion features are solely attributable to the first 327 amino acid residues (N), a region that is asparagine rich. N was aggregated in [SWI(+)] cells but diffuse in [swi(-)] cells; chromosomal deletion of the N-coding region resulted in [SWI(+)] loss, and recombinant N peptide was able to form infectious amyloid fibers in vitro, enabling [SWI(+)] de novo formation through a simple transformation. Although the glutamine-rich middle region (Q) was not sufficient to aggregate in [SWI(+)] cells or essential for SWI/SNF function, it significantly modified the Swi1 aggregation pattern and Swi1 function. We also show that excessive Swi1 incurred Li(+)/Na(+) sensitivity and that the N/Q regions are important for this gain of sensitivity. Taken together, our results provide the final proof of "protein-only" transmission of [SWI(+)] and demonstrate that the widely distributed "dispensable" glutamine/asparagine-rich regions/motifs might have important and divergent biological functions.

Indexed as

Amino Acid MotifsAmyloidAsparagineChromosomal Proteins, Non-HistoneChromosome DeletionChromosomes, FungalGlutamineImmunoblottingLuminescent ProteinsMicroscopy, ConfocalMicroscopy, ElectronMutationPrionsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsTranscription FactorsAmyloidAsparagineChromosomal Proteins, Non-HistoneGlutamineLuminescent ProteinsPrionsSaccharomyces cerevisiae ProteinsSWI1 protein, S cerevisiaeSWI-SNF-B chromatin-remodeling complexTranscription Factors

Identifiers

PMID20679490
PMCPMC2950522

What OpenQuestion holds

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Registered trials

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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.