What is "isoamylase"

n. (context enzyme English) An enzyme, glycogen 6-alpha-D-glucanohydrolase, that catalyses the hydrolysis of (1->6)-alpha-D-glucosidic branch linkages in glycogen, amylopectin and their beta-limit dextrins.

Isoamylase (, debranching enzyme, glycogen alpha-1,6-glucanohydrolase) is an enzyme with systematic name glycogen 6-alpha-D-glucanohydrolase. This enzyme catalyses the following chemical reaction

Hydrolysis of (1->6)-alpha-D-glucosidic branch linkages in glycogen, amylopectin and their beta-limit dextrins

This enzyme also readily hydrolyses amylopectin.