Ara h 1 is one of the major allergenic proteins from peanut (Arachis hypogaea) which contains approximately 13 potential allergenic proteins.

Ara h 1 is a member of the 7/8 S globulin (vicilin) family of seed storage proteins belonging to the cupin superfamily and is the most abundant allergen present in the peanut kernel. Ara h 1 plays an important role in the allergy sensitising procedure and can be recognised by 90% of patients with a peanut allergy.

This peptide represents a tryptic peptide of Ara h 1.