Cathepsin K

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Cathepsin K (329 aa, ~37 kDa) is encoded by the human CTSK gene. This protein is involved in proteolysis.

**Synonyms:** - CTSK - Cathepsin O - Cathepsin O2 - Cathepsin X - EC 3.4.22.38