Reaction catalyzed by mannitol 2-dehydrogenase (1.1.1.67)
+
polyethyleneglycol-NH-succinyl-NAD+
=
+
polyethyleneglycol-NH-succinyl-NADH
D-mannitol
+
polyethyleneglycol-NH-succinyl-NAD+
=
D-fructose
+
polyethyleneglycol-NH-succinyl-NADH