Evidence map›Paper›PMID 20161712›Full record

ArticlePloS one2010

Unexpected tolerance of alpha-cleavage of the prion protein to sequence variations.

José B Oliveira-Martins, Sei-ichi Yusa, Anna Maria Calella, Claire Bridel, Frank Baumann, Paolo Dametto, Adriano Aguzzi

Open access · goldAbstract read
In one paragraph

Article in PloS one, 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
2.6field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Prion Protein: The Molecule of Many Forms and Faces.International journal of molecular sciences · 2022
    Review
  5. Article
  6. Review
  7. Article
  8. Using NMR spectroscopy to investigate the role played by copper in prion diseases.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2020
    Review
  9. Intrinsic toxicity of the cellular prion protein is regulated by its conserved central region.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
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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

7 authors at 2 institutions in 1 country.

José B Oliveira-MartinsInstitute of Neuropathology, University Hospital of Zürich, Zurich, Switzerland.
Sei-ichi Yusa
Anna Maria Calella
Claire Bridel
Frank Baumann
Paolo Dametto
Adriano Aguzzi
University Hospital of Zurich · CHUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The cellular form of the prion protein, PrP(C), undergoes extensive proteolysis at the alpha site (109K [see text]H110). Expression of non-cleavable PrP(C) mutants in transgenic mice correlates with neurotoxicity, suggesting that alpha-cleavage is important for PrP(C) physiology. To gain insights into the mechanisms of alpha-cleavage, we generated a library of PrP(C) mutants with mutations in the region neighbouring the alpha-cleavage site. The prevalence of C1, the carboxy adduct of alpha-cleavage, was determined for each mutant. In cell lines of disparate origin, C1 prevalence was unaffected by variations in charge and hydrophobicity of the region neighbouring the alpha-cleavage site, and by substitutions of the residues in the palindrome that flanks this site. Instead, alpha-cleavage was size-dependently impaired by deletions within the domain 106-119. Almost no cleavage was observed upon full deletion of this domain. These results suggest that alpha-cleavage is executed by an alpha-PrPase whose activity, despite surprisingly limited sequence specificity, is dependent on the size of the central region of PrP(C).

Indexed as

MutationAmino Acid SequenceAnimalsBinding SitesBlotting, WesternCell LineGlycosylationHeLa CellsHumansHydrophobic and Hydrophilic InteractionsMiceMice, KnockoutMolecular Sequence DataNIH 3T3 CellsPeptide HydrolasesPrion ProteinsPeptide HydrolasesPrion ProteinsPrionsPrnp protein, mousePrPC ProteinsPrPSc Proteins

Identifiers

PMID20161712
PMCPMC2817006
OpenAlexW2031344732

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.