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 [math]\displaystyle{ \rightleftharpoons }[/math] 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