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Products: Almonds
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Purification; identification and preliminary crystallographic studies of Pru du amandin; an allergenic protein from Prunus dulcis
Authors: Gaur V, Sethi DK, Salunke DM
- Journals: Acta Crystallogr Sect F Struct Biol Cryst Commun
- Pages: 32-5
- Volume: 64(Pt 1)
- Year: 2008
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Food allergies appear to be one of the foremost causes of hypersensitivity reactions. Nut allergies account for most food allergies and are often permanent. The 360 kDa hexameric protein Pru du amandin; a known allergen; was purified from almonds (Prunus dulcis) by ammonium sulfate fractionation and ion-exchange chromatography. The protein was identified by a BLAST homology search against the nonredundant sequence database. Pru du amandin belongs to the 11S legumin family of seed storage proteins characterized by the presence of a cupin motif. Crystals were obtained by the hanging-drop vapour-diffusion method. The crystals belong to space group P4(1) (or P4(3)); with unit-cell parameters a = b = 150.7; c = 164.9 A.