Source:http://linkedlifedata.com/resource/umls/id/C0597979
MSH: Enzymes found in many bacteria which catalyze the hydrolysis of the amide bond in the beta-lactam ring. Well known antibiotics destroyed by these enzymes are penicillins and cephalosporins.,CSP: enzymes found in many bacteria which catalyze the hydrolysis of the amide bond in the beta-lactam ring well known antibiotics destroyed by these enzymes are penicillins and cephalosporins.,NCI: An enzyme that brings about the hydrolysis of a beta-lactam (as penicillin to penicilloic acid); found in most staphylococcus strains that are naturally resistant to penicillin.