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Structural, immunological and functional properties of natural recombinant Pen a 1, the major allergen of Brown Shrimp, Penaeus aztecus

Background Recombinant allergens are considered the basis for new diagnostic approaches and development of novel strategies of allergen‐specific immunotherapy. As Pen a 1 from brown shrimp Penaeus aztecus is the only major allergen of shrimp and binds up to 75% of all shrimp‐specific IgE antibodies this molecule may be an excellent model for the usage of allergens with reduced IgE antibody‐binding capacity for specific immunotherapy.