Reaction catalyzed by 5-formyl-3-hydroxy-2-methylpyridine 4-carboxylic acid 5-dehydrogenase (1.2.1.100)
+
NAD+
+
H2O
=
+
NADH
+
5-formyl-3-hydroxy-2-methylpyridine-4-carboxylate
+
NAD+
+
H2O
=
3-hydroxy-2-methylpyridine-4,5-dicarboxylate
+
NADH
+
H+
