Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.2 Acting on the aldehyde or oxo group of donors
1.2.1 With NAD+ or NADP+ as acceptor
1.2.1.102
R12265 Isopyridoxal + NAD+ + H2O <=> 3-Hydroxy-4-hydroxymethyl-2-methylpyridine-5-carboxylate + NADH + H+