Isoenzymes are the physically distinct forms of the same enzyme.
They catalyze the same chemical reaction but differ from each other structurally electrophoretically and immunologically.
Isoenzyme variants are coded by different genes
1)LDH: 5 isoenzymes
2)CK: 3 Isoenzymes
3)ALP: 6 Isoenzymes; 2 variants i.e Regan and Nagao Isoenzyme are seen in abnormal condition
4)ACP:
5)TROPONIN: 3
Enzyme Markers of Cardiac Function and Liver function are discussed here
