Evidence map›Paper›PMID 21917921›Full record

ArticleThe Journal of biological chemistry2011

Structural and immunologic characterization of Ara h 1, a major peanut allergen.

Maksymilian Chruszcz, Soheila J Maleki, Karolina A Majorek, Matthew Demas, Merima Bublin, Robert Solberg, Barry K Hurlburt, Sanbao Ruan, Christopher P Mattison, Christopher P Mattisohn and 2 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

35 citing papers in PubMed, 100 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Food Allergens of Plant Origin.Foods (Basel, Switzerland) · 2023
    Review
  5. Article
  6. Review
  7. Article
  8. The Effector Function of Allergens.Frontiers in allergy · 2022
    Review
  9. Article
  10. Recent advances in the management of nut allergy.The World Allergy Organization journal · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Peanut allergens.Molecular immunology · 2018
    Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
    Mattisohn, Christopher P [corrected to Mattison, Christopher P]
5 · Who and what money

Authors and funding

12 authors at 4 institutions in 2 countries.

Maksymilian ChruszczDepartment of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia 22908, USA. maks@iwonka.med.virginia.edu
Soheila J Maleki
Karolina A Majorek
Matthew Demas
Merima Bublin
Robert Solberg
Barry K Hurlburt
Sanbao Ruan
Christopher P Mattison
Christopher P Mattisohn
Heimo Breiteneder
Wladek Minor
University of Virginia · USMedical University of Vienna · ATSouthern Regional Research Center · USUnited States Department of Agriculture · US

Funding

The NYSGRC: A Large Scale Center for PSI:BiologyU54GM094662 · NIGMS · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI ALMO, STEVEN C. · 2010 to 2014
$32.6M
X-RAY CRYSTALLOGRAPHY OF MACROMOLECULESR01GM053163 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI MINOR, WLADEK, OTWINOWSKI, ZBYSZEK · 1996 to 2014
$6.3M
NIGMS NIH HHS GM094662NIGMS NIH HHS GM53163NIGMS NIH HHS R01 GM053163NIGMS NIH HHS U54 GM094662
6 · The paper itself

Abstract

Allergic reactions to peanuts and tree nuts are major causes of anaphylaxis in the United States. We compare different properties of natural and recombinant versions of Ara h 1, a major peanut allergen, through structural, immunologic, and bioinformatics analyses. Small angle x-ray scattering studies show that natural Ara h 1 forms higher molecular weight aggregates in solution. In contrast, the full-length recombinant protein is partially unfolded and exists as a monomer. The crystal structure of the Ara h 1 core (residues 170-586) shows that the central part of the allergen has a bicupin fold, which is in agreement with our bioinformatics analysis. In its crystalline state, the core region of Ara h 1 forms trimeric assemblies, while in solution the protein exists as higher molecular weight assemblies. This finding reveals that the residues forming the core region of the protein are sufficient for formation of Ara h 1 trimers and higher order oligomers. Natural and recombinant variants of proteins tested in in vitro gastric and duodenal digestion assays show that the natural protein is the most stable form, followed by the recombinant Ara h 1 core fragment and the full-length recombinant protein. Additionally, IgE binding studies reveal that the natural and recombinant allergens have different patterns of interaction with IgE antibodies. The molecular basis of cross-reactivity between vicilin allergens is also elucidated.

Indexed as

Protein FoldingAntigens, PlantCrystallography, X-RayGlycoproteinsImmunoglobulin EMembrane ProteinsPlant ProteinsProtein MultimerizationProtein Structure, QuaternaryProtein Structure, TertiaryProteolysisRecombinant ProteinsSeed Storage ProteinsStructure-Activity RelationshipAntigens, PlantAra h 1 protein, Arachis hypogaeaGlycoproteinsImmunoglobulin EMembrane ProteinsPlant ProteinsRecombinant ProteinsSeed Storage Proteinsvicilin protein, plant

Identifiers

PMID21917921
PMCPMC3234756
OpenAlexW2088593188

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.