EC 3.2.1.68 - Isoamylase

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IntEnz Enzyme Nomenclature
EC 3.2.1.68

Names

Accepted name:
isoamylase
Other names:
debranching enzyme
glycogen α-1,6-glucanohydrolase
Systematic name:
glycogen 6-α-D-glucanohydrolase

Reaction

Comments:

Also readily hydrolyses amylopectin. Differs from EC 3.2.1.41 (pullulanase) and EC 3.2.1.142 (limit dextrinase) by its inability to hydrolyse pullulan, and by limited action on α-limit dextrins. Maltose is the smallest sugar it can release from an α-(1→6)-linkage.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0019156
CAS Registry Number: 9067-73-6
UniProtKB/Swiss-Prot:

References

  1. Yokobayashi, K., Misaki, A. and Harada, T.
    Purification and properties of Pseudomonas isoamylase.
    Biochim. Biophys. Acta 212: 458-469 (1970). [PMID: 5456995]

[EC 3.2.1.68 created 1972, modified 1976, modified 2000]