Cyclomaltodextrinase

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cyclomaltodextrinase
Identifiers
EC number 3.2.1.54
CAS number 37288-41-8
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO

In enzymology, a cyclomaltodextrinase (EC 3.2.1.54) is an enzyme that catalyzes the chemical reaction

cyclomaltodextrin + H2O linear maltodextrin

Thus, the two substrates of this enzyme are cyclomaltodextrin and H2O, whereas its product is linear maltodextrin.

This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is cyclomaltodextrin dextrin-hydrolase (decyclizing). Other names in common use include cycloheptaglucanase, cyclohexaglucanase, and cyclodextrinase. This enzyme participates in starch and sucrose metabolism.

Structural studies[edit]

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1EA9 and 1H3G.

References[edit]

  • DePinto JA, Campbell LL (1968). "Purification and properties of the cyclodextrinase of Bacillus macerans". Biochemistry. 7 (1): 121–5. doi:10.1021/bi00841a016. PMID 4922856.