Evidence map›Paper›PMID 22970795›Full record

ArticleBiochemistry2012

Phosphatidylethanolamine enhances amyloid fiber-dependent membrane fragmentation.

Michele F M Sciacca, Jeffrey R Brender, Dong-Kuk Lee, Ayyalusamy Ramamoorthy

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
7.1field-weighted citation impact, top 2% 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

48 citing papers in PubMed, 106 citations in OpenAlex.

  1. An edge β-strand mutation turns ubiquitin into a pore-forming amyloid.Protein science : a publication of the Protein Society · 2026
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  16. Zinc boosts EGCG's hIAPP amyloid Inhibition both in solution and membrane.Biochimica et biophysica acta. Proteins and proteomics · 2019
    Article
  17. The Journal of biological chemistry · 2018
    Article
  18. Review
  19. Impact of membrane curvature on amyloid aggregation.Biochimica et biophysica acta. Biomembranes · 2018
    Review
  20. Review
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

4 authors at 1 institution in 2 countries.

Michele F M SciaccaDepartments of Biophysics and Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States.
Jeffrey R Brender
Dong-Kuk Lee
Ayyalusamy Ramamoorthy
University of Michigan–Ann Arbor · US

Funding

Rapid and efficient production of functional Cytochrome P450 enzymatic complex foR01GM095640 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAMAMOORTHY, AYYALUSAMY · 2010 to 2013
$1.3M
NIGMS NIH HHS GM095640NIGMS NIH HHS R01 GM095640
6 · The paper itself

Abstract

The toxicity of amyloid-forming peptides has been hypothesized to reside in the ability of protein oligomers to interact with and disrupt the cell membrane. Much of the evidence for this hypothesis comes from in vitro experiments using model membranes. However, the accuracy of this approach depends on the ability of the model membrane to accurately mimic the cell membrane. The effect of membrane composition has been overlooked in many studies of amyloid toxicity in model systems. By combining measurements of membrane binding, membrane permeabilization, and fiber formation, we show that lipids with the phosphatidylethanolamine (PE) headgroup strongly modulate the membrane disruption induced by IAPP (islet amyloid polypeptide protein), an amyloidogenic protein involved in type II diabetes. Our results suggest that PE lipids hamper the interaction of prefibrillar IAPP with membranes but enhance the membrane disruption correlated with the growth of fibers on the membrane surface via a detergent-like mechanism. These findings provide insights into the mechanism of membrane disruption induced by IAPP, suggesting a possible role of PE and other amyloids involved in other pathologies.

Indexed as

Amino Acid SequenceCell MembraneCircular DichroismHumansIslet Amyloid PolypeptideLiposomesMolecular Sequence DataNuclear Magnetic Resonance, BiomolecularPermeabilityPhosphatidylcholinesPhosphatidylethanolaminesIslet Amyloid PolypeptideLiposomesPhosphatidylcholinesphosphatidylethanolaminePhosphatidylethanolamines

Identifiers

PMID22970795
PMCPMC3464957
OpenAlexW2070004512

What OpenQuestion holds

Textmetadata
LicenceTDM
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.