noun
- any of two or more forms of an enzyme that catalyze the same chemical reaction but differ in amino acid sequence and physical properties
Usage: biochemistry; also called isozyme
Examples
- Lactate dehydrogenase exists as five different isoenzymes in human tissues.
- The presence of specific isoenzymes in the blood can indicate which organ has been damaged.
- Researchers identified multiple isoenzymes of the same enzyme in different cell types.
- Isoenzymes allow organisms to fine-tune enzyme activity for specific tissues and conditions.
- The isoenzyme pattern in muscle tissue differs significantly from that in the liver.