Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

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

Title data

Jacob, Thessa ; Seutter von Loetzen, Christian ; Reuter, Andreas ; Lacher, Ulrike ; Schiller, Dirk ; Schobert, Rainer ; Mahler, Vera ; Vieths, Stefan ; Rösch, Paul ; Schweimer, Kristian ; Wöhrl, Birgitta M.:
Identification of a natural ligand of the hazel allergen Cor a 1.
In: Scientific Reports. Vol. 9 (18 June 2019) . - No. 8714.
ISSN 2045-2322
DOI: https://doi.org/10.1038/s41598-019-44999-2

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
Open Access PublizierenNo information

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: allergens; major hazel allergen; solution structure; specific ligand
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Biopolymers > Chair Biopolymers - Apl. Prof. Dr. Birgitta Wöhrl
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Biopolymers
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
500 Science > 570 Life sciences, biology
Date Deposited: 05 Jul 2019 13:46
Last Modified: 23 Jul 2020 10:52
URI: https://eref.uni-bayreuth.de/id/eprint/49863