3.4.22.38 Cat K, Cat-K, cath K, cathepsin K, Cathepsin O2, cathepsin-K, catK, Ctk, CTSK, Human osteoclast cathepsin K, OC-2 protein, rhCK - 3.4.22.38 additional information cathepsin K is a member of the papain family of cysteine proteases 3.4.22.38 additional information cysteine protease of the papain family 3.4.22.38 cathepsin O, Cathepsin O2 initial name