Reaction catalyzed by sorbose dehydrogenase (1.1.99.12), glucoside 3-dehydrogenase (acceptor) (1.1.99.13)
+
=
+
maltose
+
2,6-dichlorophenolindophenol
=
4-O-alpha-D-ribo-hexopyranosyl-3-ulose-beta-D-glucopyranose
+
reduced 2,6-dichlorophenolindophenol