4-carboxy-2-hydroxymuconate semialdehyde hemiacetal dehydrogenase activity
Catalysis of the reaction: 4-carboxy-2-hydroxymuconate semialdehyde hemiacetal + NADP+ = 2-oxo-2H-pyran-4,6-dicarboxylate + H+ + NADPH.
GO:0016616
oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor
is_a
2-hydroxy-4-carboxymuconate 6-semialdehyde dehydrogenase activity
related
4-carboxy-2-hydroxy-cis,cis-muconate-6-semialdehyde:NADP(+) oxidoreductase activity
related
4-carboxy-2-hydroxymuconate-6-semialdehyde dehydrogenase activity
related
alpha-hydroxy-gamma-carboxymuconic epsilon-semialdehyde dehydrogenase activity
related