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Structure and Zeatin Binding of the Peach Allergen . | LitMetric

Structure and Zeatin Binding of the Peach Allergen .

J Agric Food Chem

Institute of Organic Chemistry, Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria.

Published: July 2021

AI Article Synopsis

Article Abstract

Peach () is among the fruits most frequently reported to cause food allergies. Allergic reactions commonly result from previous sensitization to the birch pollen allergen Bet v 1, followed by immunological cross-reactivity of IgE antibodies to structurally related proteins in peach. In this study, we present the three-dimensional NMR solution structure of the cross-reactive peach allergen (isoform Pru p 1.0101). This 17.5 kDa protein adopts the canonical Bet v 1 fold, composed of a seven-stranded β-sheet and three α-helices enclosing an internal cavity. In , the inner surface of the cavity contains an array of hydroxyl-bearing amino acids surrounded by a hydrophobic patch, constituting a docking site for amphiphilic molecules. NMR-guided docking of the cytokinin molecule zeatin to the internal cavity of provides a structure-based rationale for the effect that zeatin binding has on the protein's RNase activity.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8323099PMC
http://dx.doi.org/10.1021/acs.jafc.1c01876DOI Listing

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