Maltose alpha-D-glucosyltransferase

Maltose alpha-D-glucosyltransferase
maltose alpha-D-glucosyltransferase
Identifiers
EC number 5.4.99.16
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 / EGO

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

maltose \rightleftharpoons 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

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