Members of this family consist of two nearly antiparallel alpha-helices, that are connected by a short loop and followed by a long, unstructured C-terminal tail. They are highly allergenic, primarily mediating olive allergy [1].

1: NMR solution structure of Ole e 6, a major allergen from olive tree pollen. Trevino MA, Garcia-Mayoral MF, Barral P, Villalba M, Santoro J, Rico M, Rodriguez R, Bruix M; J Biol Chem. 2004;279:39035-39041. PMID:15247256