Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.1 Acting on the CH-OH group of donors
1.1.1 With NAD+ or NADP+ as acceptor
1.1.1.312
R04419 2-Hydroxy-5-carboxymethylmuconate semialdehyde + NADP+ + H2O <=> 5-Carboxymethyl-2-hydroxymuconate + NADPH + H+