Exists in two variants: glycosylated and non-glycosylated. Carries a complex, major N-linked glycan, with a alpha-1,3-fucose residue in its structure and probably also a beta-1,2-xylose. The average modification of molecular mass due to glycosylation is approximately 969 Da. Causes an allergic reaction in human. Binds to IgE. The English plantain pollen is an important cause of pollinosis in the temperate regions of North America, Australia and Europe. The glycan moiety does not seem to constitute a relevant allergenic epitope. Belongs to the Ole e I family.