| isoenzymes | One of various structurally related forms of an enzyme, each having the same mechanism but with differing chemical, physical, or immunologically characteristics. (12 Dec 1998) |
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| creatine kinase isoenzymes | <enzyme> Three isoenzymes of creatine kinase have been identified in human tissues: mm from skeletal muscle, mb from myocardial tissue and bb from nervous tissue. Plasma from healthy humans contains mm almost exclusively. Elevated mb creatine kinase activity is a possible indicator of myocardial injury. Registry number: EC 2.7.3.- (12 Dec 1998) |
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| lactate dehydrogenase isoenzymes | <enzyme> Registry number: EC 1.1.1.- (12 Dec 1998) |