Evidence map›Paper›PMID 20442412›Full record

ArticleThe Journal of biological chemistry2010

Analysis of the [RNQ+] prion reveals stability of amyloid fibers as the key determinant of yeast prion variant propagation.

Tejas Kalastavadi, Heather L True

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

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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

2 authors at 1 institution in 1 country.

Tejas KalastavadiDepartment of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MI 63108, USA.
Heather L True
Washington University in St. Louis · US

Funding

A PRION REVEALS COMPLEX TRAITS AND PHENOTYPIC DIVERSITYR01GM072778 · NIGMS · WASHINGTON UNIVERSITY · PI TRUE-KROB, HEATHER L · 2005 to 2014
$3.1M
NIGMS NIH HHS GM072228NIGMS NIH HHS R01 GM072778
6 · The paper itself

Abstract

Variation in pathology of human prion disease is believed to be caused, in part, by distinct conformations of aggregated protein resulting in different prion strains. Several prions also exist in yeast and maintain different self-propagating structures, referred to as prion variants. Investigation of the yeast prion [PSI(+)] has been instrumental in deciphering properties of prion variants and modeling the physical basis of their formation. Here, we describe the generation of specific variants of the [RNQ(+)] prion in yeast transformed with fibers formed in vitro in different conditions. The fibers of the Rnq1p prion-forming domain (PFD) that induce different variants in vivo have distinct biochemical properties. The physical basis of propagation of prion variants has been previously correlated to rates of aggregation and disaggregation. With [RNQ(+)] prion variants, we found that the prion variant does not correlate with the rate of aggregation as anticipated but does correlate with stability. Interestingly, we found that there are differences in the ability of the [RNQ(+)] prion variants to faithfully propagate themselves and to template the aggregation of other proteins. Incorporating the mechanism of variant formation elucidated in this study with that previously proposed for [PSI(+)] variants has provided a framework to separate general characteristics of prion variant properties from those specific to individual prion proteins.

Indexed as

Genetic VariationAnimalsDrug StabilityEscherichia coliGenes, ReporterHumansKineticsMammalsMitosisPrion DiseasesPrionsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSolubilityThermodynamicsPrionsRNQ1 protein, S cerevisiaeSaccharomyces cerevisiae Proteins

Identifiers

PMID20442412
PMCPMC2898305
OpenAlexW1984568200

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.