Isoamylase

An enzyme that hydrolyzes 1,6-alpha-glucosidic branch linkages in glycogen, amylopectin, and their beta-limit dextrins. It is distinguished from pullulanase (EC 3.2.1.41) by its inability to attack pullulan and by the feeble action of alpha-limit dextrins. It is distinguished from amylopectin 6-glucanohydrolase (EC 3.2.1.69) by its action on glycogen. With EC 3.2.1.69, it produces the activity called debranching enzyme. EC 3.2.1.68.

Year introduced: 1991(1975)

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Tree Number(s): D08.811.277.450.585

MeSH Unique ID: D007517

Registry Number: EC 3.2.1.68

Previous Indexing:

• Glycoside Hydrolases (1974)
• Polysaccharides (1974)

All MeSH Categories
Chemicals and Drugs Category
Enzymes and Coenzymes
Enzymes
Hydrolases
Glycoside Hydrolases
Isoamylase