Maltose synthase

Maltose synthase
maltose synthase
Identifiers
EC number 2.4.1.139
CAS number 81669-74-1
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 synthase (EC 2.4.1.139) is an enzyme that catalyzes the chemical reaction

2 alpha-D-glucose 1-phosphate + H2O \rightleftharpoons maltose + 2 phosphate

Thus, the two substrates of this enzyme are alpha-D-glucose 1-phosphate and H2O, whereas its two products are maltose and phosphate.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is alpha-D-glucose-1-phosphate:alpha-D-glucose-1-phosphate 4-alpha-D-glucosyltransferase (dephosphorylating).

References

  • Schilling N (1982). "Characterization of maltose biosynthesis from alpha-D-glucose-1-phosphate in Spinacia oleracea L". Planta 154: 87–93. doi:10.1007/BF00385502.