Inhibits papain and ficin (cysteine proteinases) but not trypsin (a serine proteinase). Bradykinin is released from kininogen by kallikrein. N-glycosylated. Contains sulfated N-acetylglucosamine and O-acetylated sialic acids as terminal elements on biantennary and triantennary N-glycans. The measured range is 1-123. The order of the last 3 peptides shown is unknown.