Allergenic (glyco)proteins are the elicitors of food allergies and can caus
e acute severe hypersensitivity reactions. Recombinant food allergens are a
vailable in standardised quantity and constant quality. Therefore, they off
er new perspectives to overcome current difficulties in the diagnosis, trea
tment and investigation of food allergies. This review summarises the expre
ssion strategies and characteristics of more than 40 recombinant food aller
gens that have been produced until today. Their IgE-binding properties are
compared to those of their natural counterparts, in addition their applicat
ion as diagnostic tools, the generation of hypoallergenic recombinant isofo
rms and mutants for therapeutic purposes, the determination of epitopes and
cross-reactive structures are described. (C) 2001 Elsevier Science B.V. Al
l rights reserved.