May have a structural role to stabilize the lipid body during desiccation of the seed by preventing coalescence of the oil. Probably interacts with both lipid and phospholipid moieties of lipid bodies. May also provide recognition signals for specific lipase anchorage in lipolysis during seedling growth. Surface of oil bodies. Oleosins exist at a monolayer lipid/water interface. Expressed in seeds (at protein level). Causes an allergic reaction in human. Pooled with Ara h 15 binds to IgE in 75% of the 4 peanut-allergic patients tested. Belongs to the oleosin family.