The CMBL protein is a cysteine hydrolase that converts olmesartan medoxomil to its active form olmesartan, an angiotensin receptor blocker. It may also activate beta-lactam antibiotics such as faropenem etexil and renamcillin. CMBL Protein, Human (His) is the recombinant human-derived CMBL protein, expressed by E. coli , with N-His labeled tag.