In enzymology, a maltose O-acetyltransferase () is an enzyme that catalyzes the chemical reaction acetyl-CoA + maltose CoA + 6-O-acetyl-alpha-D-glucopyranosyl-(1->4)-D-glucose Thus, the two substrates of this enzyme are acetyl-CoA and maltose, whereas its two products are CoA and [[6-O-acetyl-alpha-D-glucopyranosyl-(1->4)-D-glucose]]. This enzyme belongs to the family of transferases, specifically those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is acetyl-CoA:maltose O-acetyltransferase. Other names in common use include maltose transacetylase, maltose O-acetyltransferase, and MAT. Structural studies As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes , , and . References EC 2.3.1 Enzymes of known structure