Carbohydrate-binding protein binding preferentially 1,3-beta-glucans. May be involved in pollen tube wall re-formation during germination. Expressed in mature and germinating pollen. The N-terminus is blocked. Phosphorylated at Ser-24 when expressed as a recombinant protein in a heterologous system. Not glycosylated. Contains two additional disulfide bonds. Causes an allergic reaction in human. Allergen from olive pollen.