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Secret of the major birch pollen allergen Bet v 1 : identification of the physiological ligand

Title data

Seutter von Loetzen, Christian ; Hoffmann, Thomas ; Hartl, Maximilian J. ; Schweimer, Kristian ; Schwab, Wilfried ; Rösch, Paul ; Hartl-Spiegelhauer, Olivia:
Secret of the major birch pollen allergen Bet v 1 : identification of the physiological ligand.
In: Biochemical Journal. Vol. 457 (2014) Issue 3 . - pp. 379-390.
ISSN 1470-8728
DOI: https://doi.org/10.1042/BJ20130413

Abstract in another language

The major birch pollen allergen Bet v 1 is the main elicitor of airborne type I allergies and belongs to the family 10 of pathogenesis related proteins. Bet v 1 is the most extensively studied allergen, and is well characterized on the biochemical and immunological level. However, its physiological function remained elusive. Here we present the identification of quercetin-3-O-sophoroside (Q3OS) as the natural ligand of Bet v 1. We isolated Q3OS bound to Bet v 1 from mature birch pollen and confirmed its binding by reconstitution of the Bet v 1:Q3OS complex. Fluorescence, UV/VIS as well as HSQC titration experiments and the comparison with model compounds, such as quercetin, indicated the specificity of Q3OS binding. Elucidation of the binding site by NMR combined with a computational model resulted in a more detailed understanding and shed light on the physiological function of Bet v 1. We postulate that the binding of Q3OS to Bet v 1 plays an important but as yet unclear role during the inflammation response and Bet v 1 recognition by IgE.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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 > Former Professors
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Biopolymers
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Biopolymers - Univ.-Prof. Dr. Paul Rösch
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Biopolymers > Lehrstuhl Biopolymere - Apl. Prof. Dr. Birgitta Wöhrl
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 500 Natural sciences
500 Science > 540 Chemistry
500 Science > 570 Life sciences, biology
Date Deposited: 15 Jan 2015 07:17
Last Modified: 29 May 2019 06:25
URI: https://eref.uni-bayreuth.de/id/eprint/5560