Biology:Cyclomaltodextrinase

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Cyclomaltodextrinase
Identifiers
EC number3.2.1.54
CAS number37288-41-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

The enzyme cyclomaltodextrinase (EC 3.2.1.54) catalyzes the chemical reaction

cyclomaltodextrin + H2O ⇌ linear maltodextrin

It 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. The enzyme participates in starch and sucrose metabolism and acarbose degradation.[1][2] The cyclomaltodextrinase is capable of degradation of acarbose to glucose and acarviosine-glucose.[3]

Structural studies

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

References

  1. ↑ "Gene Cluster Analysis and Functional Characterization of Cyclomaltodextrinase from Listeria innocua". Microbiology and Biotechnology Letters 44 (3): 363–369. 2016. doi:10.4014/mbl.1608.08008. ISSN 1598-642X. 
  2. ↑ "Functional expression and enzymatic characterization of Lactobacillus plantarum cyclomaltodextrinase catalyzing novel acarbose hydrolysis". Journal of Microbiology 56 (2): 113–118. February 2018. doi:10.1007/s12275-018-7551-3. PMID 29392561. 
  3. ↑ "Function and Tertiary- and Quaternary-structure of Cyclodextrin-hydrolyzing Enzymes (CDase), a Group of Multisubstrate Specific Enzymes Belonging to the α-Amylase Family". Journal of Applied Glycoscience 53 (1): 35–44. 2006. doi:10.5458/jag.53.35. 

Further reading