Definitions for "Isoenzyme"
An enzyme performing the same function as another enzyme but having a different set of amino acids.
a varied molecular form of an enzyme
An isoenzyme (or isozyme) is one of a group of enzymes that are very similar in catalytic properties, but may be differentiated by variations in physical properties, such as isoelectric point or electrophoretic mobility.
One of many forms of a protein catalyst differing in characteristics (chemical, physical, immunological) but catalyzing the same reaction. For example, lactate dehydrogenase may exist in five different forms.