4-pyridoxate + A = 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylate + AH2
4-pyridoxate + a = 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylate + ah2
4-pyridoxate + A = 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylate + AH2
4-pyridoxate + a = 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylate + ah2