Evidence map›Paper›PMID 35213141›Full record

ArticleBiochemistry2022

Effects of Familial Alzheimer's Disease Mutations on the Assembly of a β-Hairpin Peptide Derived from Aβ

Kate J McKnelly, Adam G Kreutzer, William J Howitz, Katelyn Haduong, Stan Yoo, Candace Hart, James S Nowick

Open access · greenAbstract read
In one paragraph

Article in Biochemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 11 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

7 authors at 1 institution in 1 country.

Kate J McKnellyDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.ORCID 0000-0003-0063-6423
Adam G KreutzerDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.ORCID 0000-0002-9724-6298
William J HowitzDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.ORCID 0000-0001-6323-7126
Katelyn HaduongDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.
Stan YooDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.ORCID 0000-0002-8982-7631
Candace HartDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.
James S NowickDepartment of Chemistry, University of California Irvine, Irvine, California 92697, United States.ORCID 0000-0002-2273-1029
University of California, Irvine · US

Funding

Purchase of an Microwave Peptide SynthesizerR01GM097562 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI NOWICK, JAMES S · 2012 to 2019
$2.5M
Structural and Biological Characterization of Diverse Oligomers Derived from AbetaRF1AG072587 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI NOWICK, JAMES S · 2021 to 2021
$1.4M
Structural and Biological Characterization of Diverse Oligomers Derived from AbetaR01AG072587 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI NOWICK, JAMES S · 2024 to 2025
$994k
NIA NIH HHS R01 AG072587NIA NIH HHS RF1 AG072587NIGMS NIH HHS R01 GM097562
6 · The paper itself

Abstract

Familial Alzheimer's disease (FAD) is associated with mutations in the β-amyloid peptide (Aβ) or the amyloid precursor protein (APP). FAD mutations of Aβ were incorporated into a macrocyclic peptide that mimics a β-hairpin to study FAD point mutations K16N, A21G, E22Δ, E22G, E22Q, E22K, and L34V and their effect on assembly, membrane destabilization, and cytotoxicity. The X-ray crystallographic structures of the four E22 mutant peptides reveal that the peptides assemble to form the same compact hexamer. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) experiments reveal that the mutant FAD peptides assemble as trimers or hexamers, with peptides that have greater positive charge assembling as more stable hexamers. Mutations that increase the positive charge also increase the cytotoxicity of the peptides and their propensity to destabilize lipid membranes.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorHumansMutationPeptide FragmentsAmyloid beta-PeptidesAmyloid beta-Protein PrecursorPeptide Fragments

Identifiers

PMID35213141
PMCPMC9042424
OpenAlexW4214492730

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.