In enzymology, a maltose synthase (EC 2.4.1.139) is an enzyme that catalyzes the chemical reaction

maltose synthase
Identifiers
EC no.2.4.1.139
CAS no.81669-74-1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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NCBIproteins
2 alpha-D-glucose 1-phosphate + H2O 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

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  • Schilling N (March 1982). "Characterization of maltose biosynthesis from α-D-glucose-1-phosphate in Spinacia oleracea. L". Planta. 154 (1): 87–93. doi:10.1007/BF00385502. PMID 24275923.