ID 1.3.1.31 DE 2-enoate reductase. AN Enoate reductase. CA Butanoate + NAD(+) = but-2-enoate + NADH. CF FAD; Iron-sulfur. CC -!- Acts, in the reverse direction, on a wide range of alkyl and aryl CC alpha-beta-unsaturated carboxylate ions; 2-butenoate was the best CC substrate tested. DR P11887, 2ENR_CLOTY ; P40952, KYE1_KLULA ; //