Evidence map›Paper›PMID 23959898›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2013

Pulsed hydrogen-deuterium exchange mass spectrometry probes conformational changes in amyloid beta (Aβ) peptide aggregation.

Ying Zhang, Don L Rempel, Jun Zhang, Anuj K Sharma, Liviu M Mirica, Michael L Gross

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

63 citing papers in PubMed, 117 citations in OpenAlex.

  1. Article
  2. Mass spectrometry footprinting reveals how kinetic stabilizers counteract transthyretin dynamics altered by pathogenic mutations.Proceedings of the National Academy of Sciences of the United States of America · 2026
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3 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Ying ZhangDepartment of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA.
Don L Rempel
Jun Zhang
Anuj K Sharma
Liviu M Mirica
Michael L Gross
Washington University in St. Louis · USCalifornia Institute of Technology · US

Funding

WASHINGTON UNIVERSITY ALZHEIMERS DISEASE RESEARCH CENTERP50AG005681 · NIA · WASHINGTON UNIVERSITY · PI MORRIS, JOHN · 1985 to 2019
$52.1M
TrainingP41GM103422 · NIGMS · WASHINGTON UNIVERSITY · PI YARASHESKI, KEVIN E · 2012 to 2019
$12.0M
NIA NIH HHS P50 AG005681NIA NIH HHS P50-AG05681NIGMS NIH HHS 8 P41 GM103422-35NIGMS NIH HHS P41 GM103422
6 · The paper itself

Abstract

Probing the conformational changes of amyloid beta (Aβ) peptide aggregation is challenging owing to the vast heterogeneity of the resulting soluble aggregates. To investigate the formation of these aggregates in solution, we designed an MS-based biophysical approach and applied it to the formation of soluble aggregates of the Aβ42 peptide, the proposed causative agent in Alzheimer's disease. The approach incorporates pulsed hydrogen-deuterium exchange coupled with MS analysis. The combined approach provides evidence for a self-catalyzed aggregation with a lag phase, as observed previously by fluorescence methods. Unlike those approaches, pulsed hydrogen-deuterium exchange does not require modified Aβ42 (e.g., labeling with a fluorophore). Furthermore, the approach reveals that the center region of Aβ42 is first to aggregate, followed by the C and N termini. We also found that the lag phase in the aggregation of soluble species is affected by temperature and Cu(2+) ions. This MS approach has sufficient structural resolution to allow interrogation of Aβ aggregation in physiologically relevant environments. This platform should be generally useful for investigating the aggregation of other amyloid-forming proteins and neurotoxic soluble peptide aggregates.

Indexed as

Protein ConformationAlzheimer DiseaseAmyloidAmyloid beta-PeptidesBlotting, WesternCopperDeuteriumDeuterium Exchange MeasurementHumansHydrogenMass SpectrometryMicroscopy, Electron, TransmissionPeptide FragmentsTemperatureAmyloidAmyloid beta-Peptidesamyloid beta-protein (1-40)amyloid beta-protein (1-42)CopperDeuteriumHydrogenPeptide Fragmentsamyloid beta peptidecopperelectrospray ionizationFinke–Watsky modesoluble Aβ oligomers

Identifiers

PMID23959898
PMCPMC3767558
OpenAlexW2165610594

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.