umls-concept:C0007054 | skos:definition | MSH: Enzymes that catalyze the addition of a carboxyl group to a compound (carboxylases) or the removal of a carboxyl group from a compound (decarboxylases). EC 4.1.1.,CSP: enzymes which catalyze the nonhydrolytic removal of carbon dioxide from carboxylic acids. | lld:umls |