Evidence map›Paper›PMID 25217642›Full record

ArticleThe Journal of biological chemistry2014

A C-terminal membrane anchor affects the interactions of prion proteins with lipid membranes.

Nam K Chu, Waheed Shabbir, Erin Bove-Fenderson, Can Araman, Rosa Lemmens-Gruber, David A Harris, Christian F W Becker

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

16 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Chemische Synthese und Semisynthese von lipidierten Proteinen.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2022
    Review
  3. Chemical Synthesis and Semisynthesis of Lipidated Proteins.Angewandte Chemie (International ed. in English) · 2022
    Review
  4. What is the role of lipids in prion conversion and disease?Frontiers in molecular neuroscience · 2022
    Review
  5. Review
  6. Prion protein-Semisynthetic prion protein (PrP) variants with posttranslational modifications.Journal of peptide science : an official publication of the European Peptide Society · 2019
    Review
  7. Prion neurotoxicity.Brain pathology (Zurich, Switzerland) · 2019
    Review
  8. Article
  9. 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 1 institution in 1 country.

Nam K ChuFrom the Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria.
Waheed Shabbirthe Department of Pharmacology and Toxicology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria, and.
Erin Bove-Fendersonthe Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts 02118.
Can AramanFrom the Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria.
Rosa Lemmens-Gruberthe Department of Pharmacology and Toxicology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria, and.
David A Harristhe Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts 02118.
Christian F W BeckerFrom the Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria, christian.becker@univie.ac.at.
Boston University · US

Funding

Mechanisms of Prion Protein ToxicityR01NS065244 · NINDS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI HARRIS, DAVID A · 2010 to 2025
$8.9M
MURINE TRANSGENIC MODELS OF PRION DISEASESR01NS040975 · NINDS · WASHINGTON UNIVERSITY · PI HARRIS, DAVID A · 2001 to 2015
$7.0M
Intramural NIH HHSNINDS NIH HHS R01 NS040975NINDS NIH HHS R01 NS065244
6 · The paper itself

Abstract

Membrane attachment via a C-terminal glycosylphosphatidylinositol anchor is critical for conversion of PrP(C) into pathogenic PrP(Sc). Therefore the effects of the anchor on PrP structure and function need to be deciphered. Three PrP variants, including full-length PrP (residues 23-231, FL_PrP), N-terminally truncated PrP (residues 90-231, T_PrP), and PrP missing its central hydrophobic region (Δ105-125, ΔCR_PrP), were equipped with a C-terminal membrane anchor via a semisynthesis strategy. Analyses of the interactions of lipidated PrPs with phospholipid membranes demonstrated that C-terminal membrane attachment induces a different binding mode of PrP to membranes, distinct from that of non-lipidated PrPs, and influences the biochemical and conformational properties of PrPs. Additionally, fluorescence-based assays indicated pore formation by lipidated ΔCR_PrP, a variant that is known to be highly neurotoxic in transgenic mice. This finding was supported by using patch clamp electrophysiological measurements of cultured cells. These results provide new evidence for the role of the membrane anchor in PrP-lipid interactions, highlighting the importance of the N-terminal and the central hydrophobic domain in these interactions.

Indexed as

4-Chloro-7-nitrobenzofurazanAnimalsElectrophysiological PhenomenaEndopeptidase KFluoresceinsFluorescenceGlycosylphosphatidylinositolsHEK293 CellsHumansKineticsLiposomesMembrane LipidsMiceMutant ProteinsPeptidesPhospholipids4-Chloro-7-nitrobenzofurazanEndopeptidase KFluoresceinsfluorexonGlycosylphosphatidylinositolsLiposomesMembrane LipidsMutant ProteinsPeptidesPhospholipidsPrionsTryptophanlipid-Protein InteractionsLiposomeMembrane AnchorPore FormationPrionProtein AggregationProtein ChemistryProtein ConformationProtein Semisynthesis

Identifiers

PMID25217642
PMCPMC4208020
OpenAlexW2084103500

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.