In enzymology, a maltose epimerase (EC 188.8.131.52) is an enzyme that catalyzes the chemical reaction
- alpha-maltose beta-maltose
Hence, this enzyme has one substrate, alpha-maltose, and one product, beta-maltose.
This enzyme belongs to the family of isomerases, specifically those racemases and epimerases acting on carbohydrates and derivatives. The systematic name of this enzyme class is maltose 1-epimerase.