Evidence map›Paper›PMID 31213622›Full record

ArticleScientific reports2019

Identification of a natural ligand of the hazel allergen Cor a 1.

Thessa Jacob, Christian Seutter von Loetzen, Andreas Reuter, Ulrike Lacher, Dirk Schiller, Rainer Schobert, Vera Mahler, Stefan Vieths, Paul Rösch, Kristian Schweimer and 1 more

Open access · greenAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed, 20 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Role of Small Molecule Ligands in IgE-Mediated Allergy.Current allergy and asthma reports · 2023
    Review
  7. Article
  8. Review
  9. Food Allergens of Plant Origin.Foods (Basel, Switzerland) · 2023
    Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Tree nut allergy.Postepy dermatologii i alergologii · 2021
    Review
  16. Article
  17. Article
  18. Review
  19. Article
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

11 authors at 1 institution in 1 country.

Thessa JacobUniversität Bayreuth, Lehrstuhl Biopolymere, Bayreuth, Germany.
Christian Seutter von LoetzenUniversität Bayreuth, Lehrstuhl Biopolymere, Bayreuth, Germany.
Andreas ReuterDivision of Allergology, Paul-Ehrlich-Institut, D-63225, Langen, Germany.ORCID http://orcid.org/0000-0002-6082-9000
Ulrike LacherUniversität Bayreuth, Lehrstuhl Organische Chemie I, D-95447, Bayreuth, Germany.
Dirk SchillerDivision of Allergology, Paul-Ehrlich-Institut, D-63225, Langen, Germany.
Rainer SchobertUniversität Bayreuth, Lehrstuhl Organische Chemie I, D-95447, Bayreuth, Germany.ORCID http://orcid.org/0000-0002-8413-4342
Vera MahlerDivision of Allergology, Paul-Ehrlich-Institut, D-63225, Langen, Germany.
Stefan ViethsDivision of Allergology, Paul-Ehrlich-Institut, D-63225, Langen, Germany.
Paul RöschUniversität Bayreuth, Lehrstuhl Biopolymere, Bayreuth, Germany.
Kristian SchweimerUniversität Bayreuth, Lehrstuhl Biopolymere, Bayreuth, Germany.
Birgitta M WöhrlUniversität Bayreuth, Lehrstuhl Biopolymere, Bayreuth, Germany. birgitta.woehrl@uni-bayreuth.de.
University of Bayreuth · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hazelnut is one of the most frequent causes of food allergy. The major hazel allergen in Northern Europe is Cor a 1, which is homologous to the major birch pollen allergen Bet v 1. Both allergens belong to the pathogenesis related class PR-10. We determined the solution structure of Cor a 1.0401 from hazelnut and identified a natural ligand of the protein. The structure reveals the protein fold characteristic for PR-10 family members, which consists of a seven-stranded antiparallel β-sheet, two short α-helices arranged in V-shape and a long C-terminal α-helix encompassing a hydrophobic pocket. However, despite the structural similarities between Cor a 1 and Bet v 1, they bind different ligands. We have shown previously that Bet v 1 binds to quercetin-3-O-sophoroside. Here, we isolated Cor a 1 from hazel pollen and identified the bound ligand, quercetin-3-O-(2"-O-β-D-glucopyranosyl)-β-D-galactopyranoside, by mass spectrometry and nuclear magnetic resonance spectroscopy (NMR). NMR experiments were performed to confirm binding. Remarkably, although it has been shown that PR-10 allergens show promiscuous binding behaviour in vitro, we can demonstrate that Cor a 1.0401 and Bet v 1.0101 exhibit highly selective binding for their specific ligand but not for the respective ligand of the other allergen.

Indexed as

AlgorithmsAllergensAmino Acid SequenceAntigens, PlantCorylusFood HypersensitivityGalactoseLigandsMagnetic Resonance SpectroscopyMass SpectrometryModels, MolecularMolecular StructurePlant ProteinsPollenProtein BindingProtein ConformationAllergensAntigens, PlantCor a I protein, hazelGalactoseLigandsPlant ProteinsPR-10 protein, walnut birch pollen

Identifiers

PMID31213622
PMCPMC6582051
OpenAlexW2952079275

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.