Proteins containing this domain are lectins. It is found in 1 to 6 copies in these proteins. The domain is also found in the animal prostatic spermine-binding protein (Swiss:P15501).

1: A novel mode of carbohydrate recognition in jacalin, a Moraceae plant lectin with a beta-prism fold. Sankaranarayanan R, Sekar K, Banerjee R, Sharma V, Surolia A, Vijayan M; Nat Struct Biol 1996;3:596-603. PMID:8673603