Evidence map›Paper›PMID 19067491›Full record

ArticlePLoS biology2008

Prion switching in response to environmental stress.

Jens Tyedmers, Maria Lucia Madariaga, Susan Lindquist

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 157 papers.

0numbers the graph read from it
0cells of the map it votes in
157citing papers in PubMed
8.8field-weighted citation impact, top 1% 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

157 citing papers in PubMed, 264 citations in OpenAlex.

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  16. Co-option of stress mechanisms in the origin of evolutionary novelties.Evolution; international journal of organic evolution · 2022
    Article
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97 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

3 authors at 2 institutions in 1 country.

Jens TyedmersWhitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA.
Maria Lucia Madariaga
Susan Lindquist
Whitehead Institute for Biomedical Research · USHarvard–MIT Division of Health Sciences and Technology · US

Funding

THE FUNCTION OF HEAT SHOCK RESPONSE IN DROSOPHILAR01GM025874 · NIGMS · WHITEHEAD INSTITUTE FOR BIOMEDICAL RES · PI WHITESELL, LUKE J · 1985 to 2016
$4.7M
CHAPERONE PROTEIN AND PROTEIN CONFORMATIONAL SWITCHESR37GM025874 · NIGMS · WHITEHEAD INSTITUTE FOR BIOMEDICAL RES · PI LINDQUIST, SUSAN L. · 1997 to 2006
$2.7M
Howard Hughes Medical InstituteNIGMS NIH HHS GM25874NIGMS NIH HHS R01 GM025874NIGMS NIH HHS R37 GM025874
6 · The paper itself

Abstract

Evolution depends on the manner in which genetic variation is translated into new phenotypes. There has been much debate about whether organisms might have specific mechanisms for "evolvability," which would generate heritable phenotypic variation with adaptive value and could act to enhance the rate of evolution. Capacitor systems, which allow the accumulation of cryptic genetic variation and release it under stressful conditions, might provide such a mechanism. In yeast, the prion [PSI(+)] exposes a large array of previously hidden genetic variation, and the phenotypes it thereby produces are advantageous roughly 25% of the time. The notion that [PSI(+)] is a mechanism for evolvability would be strengthened if the frequency of its appearance increased with stress. That is, a system that mediates even the haphazard appearance of new phenotypes, which have a reasonable chance of adaptive value would be beneficial if it were deployed at times when the organism is not well adapted to its environment. In an unbiased, high-throughput, genome-wide screen for factors that modify the frequency of [PSI(+)] induction, signal transducers and stress response genes were particularly prominent. Furthermore, prion induction increased by as much as 60-fold when cells were exposed to various stressful conditions, such as oxidative stress (H2O2) or high salt concentrations. The severity of stress and the frequency of [PSI(+)] induction were highly correlated. These findings support the hypothesis that [PSI(+)] is a mechanism to increase survival in fluctuating environments and might function as a capacitor to promote evolvability.

Indexed as

Gene Expression Regulation, FungalAdaptation, PhysiologicalExtrachromosomal InheritanceFungal ProteinsGenes, FungalGenetic VariationGenome-Wide Association StudyPeptide Termination FactorsPhenotypePrionsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence DeletionStress, PhysiologicalTranscriptional ActivationFungal ProteinsPeptide Termination FactorsPrionsSaccharomyces cerevisiae ProteinsSUP35 protein, S cerevisiae

Identifiers

PMID19067491
PMCPMC2586387
OpenAlexW2136679442

What OpenQuestion holds

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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.