Definition: A macromolecule that acts as a catalyst to induce chemical changes in other substances, while itself remaining apparently unchanged by the process. Enzymes, with the exception of those discovered long ago (pepsin, emulsin), are generally named by adding -ase to the name of the substrate on which the enzyme acts (glucosidase), the substance activated (hydrogenase), and/or the type of reaction (oxidoreductase, transferase, hydrolase, lyase, isomerase, ligase or synthetase—these being the six main groups in the Enzyme Nomenclature Recommendations of the International Union of Biochemistry). For individual enzymes not listed below, see the specific name.
Synonym(s): organic catalyst1
[G. + L. en, in + zyme, leaven]
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.