. "Highly specific for 4-hydroxy-non-2-enal and non-2-enal." . "2-alkenals of shorter chain have lower affinities." . "Exhibits high activities also for 2-alkenones such as but-3-en-2-one and pent-3-en-2-one." . "Inactive with cyclohex-2-en-1-one and 12-oxophytodienoic acid." . "Involved in the detoxification of alpha,beta-unsaturated aldehydes and ketones." . . . "2-alkenal reductase" . "NAD(P)H-dependent alkenal/one oxidoreductase" . "NADPH:2-alkenal alpha,beta-hydrogenase" . "n-alkanal + NAD(P)(+) = alk-2-enal + NAD(P)H." .