Biology:Maltose alpha-D-glucosyltransferase

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Maltose α-D-glucosyltransferase
Identifiers
EC number5.4.99.16
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

In enzymology, a maltose α-D-glucosyltransferase (EC 5.4.99.16) is an enzyme that catalyzes the chemical reaction

maltose [math]\displaystyle{ \rightleftharpoons }[/math] alpha,alpha-trehalose

Hence, this enzyme has one substrate, maltose, and one product, alpha,alpha-trehalose.

This enzyme belongs to the family of isomerases, specifically those intramolecular transferases transferring other groups. The systematic name of this enzyme class is maltose alpha-D-glucosylmutase. Other names in common use include trehalose synthase, and maltose glucosylmutase. This enzyme participates in starch and sucrose metabolism.

References

  • "Existence of a novel enzyme converting maltose to trehalose". Biosci. Biotechnol. Biochem. 59 (11): 2189–2190. 1995. doi:10.1271/bbb.59.2189. 
  • "Purification and properties of a novel enzyme, trehalose synthase, from Pimelobacter sp. R48". Biosci. Biotechnol. Biochem. 60 (4): 640–4. 1996. doi:10.1271/bbb.60.640. PMID 8829531.