Characterization of allergens in mango fruit and ripening dependence of the allergenic potency
2001
The topic of the present paper is the detection of IgE-related allergens in mango fruit. Furthermore the occurrence of allergens during ripening of mango fruit is investigated. In order to identify the molecular weights of IgE-binding allergens SDS-PAGE/immunoblotting was performed. Fifty-two sera from patients with IgE-mediated sensitization to mango fruit were used. Forty-six of the 52 patient sera detected two allergens with molecular weights of approximately 40 and 30 kDa. These can be described as the so-called major allergens. Other IgE-binding patterns were detected for fewer than 50% of the assigned sera. By 2D-electrophoresis it could be proved that the major allergen with a molecular weight of approximately 40 kDa exists as an isoallergen with isoelectric points of 4.6 and 4.8. The allergen with a molecular weight of approximately 30 kDa had an isoelectric point of 4.9. According to international rules, the 40 kDa allergen was named Mangifera indica 1 (Man i 1) and the 30 kDa allergen , Mangifer...
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