Evidence map›Paper›PMID 23771030›Full record

ArticleHuman molecular genetics2013

Polar substitutions in helix 3 of the prion protein produce transmembrane isoforms that disturb vesicle trafficking.

Jonatan Sanchez-Garcia, Daniela Arbelaez, Kurt Jensen, Diego E Rincon-Limas, Pedro Fernandez-Funez

Abstract read
In one paragraph

Article in Human molecular genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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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

6 citing papers in PubMed.

  1. Prion disease modelled in Drosophila.Cell and tissue research · 2023
    Review
  2. Intrinsic determinants of prion protein neurotoxicity inFrontiers in molecular neuroscience · 2023
    Review
  3. Review
  4. Article
  5. Article
  6. 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

5 authors.

Jonatan Sanchez-GarciaDepartment of Neurology, McKnight Brain Institute.
Daniela Arbelaez
Kurt Jensen
Diego E Rincon-Limas
Pedro Fernandez-Funez

Funding

Mechanisms of Prion MisfoldingDP2OD002721 · OD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI FERNANDEZ-FUNEZ, PEDRO · 2007 to 2010
$2.2M
NIH HHS DP2 OD002721-01
6 · The paper itself

Abstract

Prion diseases encompass a diverse group of neurodegenerative conditions characterized by the accumulation of misfolded prion protein (PrP) isoforms. Other conformational variants of PrP have also been proposed to contribute to neurotoxicity in prion diseases, including misfolded intermediates as well as cytosolic and transmembrane isoforms. To better understand PrP neurotoxicity, we analyzed the role of two highly conserved methionines in helix 3 on PrP biogenesis, folding and pathogenesis. Expression of the PrP-M205S and -M205,212S mutants in Drosophila led to hyperglycosylation, intracellular accumulation and widespread conformational changes due to failure of oxidative folding. Surprisingly, PrP-M205S and -M205,212S acquired a transmembrane topology (Ctm) previously linked to mutations in the signal peptide (SP) and the transmembrane domain (TMD). PrP-M205,212S also disrupted the accumulation of key neurodevelopmental proteins in lipid rafts, resulting in shortened axonal projections. These results uncover a new role for the hydrophobic domain in promoting oxidative folding and preventing the formation of neurotoxic Ctm PrP, mechanisms that may be relevant in the pathogenesis of both inherited and sporadic prion diseases.

Indexed as

Protein TransportAnimalsAnimals, Genetically ModifiedCytoplasmic VesiclesDrosophilaFemaleGenotypeHumansMaleMembrane MicrodomainsMiceMutationOxidation-ReductionPrion DiseasesPrionsProtein FoldingPrionsProtein Isoforms

Identifiers

PMID23771030
PMCPMC3792687

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.