ID 1.3.1.31 DE 2-enoate reductase. AN enoate reductase. CA butanoate + NAD(+) = (2E)-2-butenoate + H(+) + NADH. CC -!- Acts, in the reverse direction, on a wide range of alkyl and aryl CC alphabeta-unsaturated carboxylate ions; 2-butenoate was the best CC substrate tested. DR P11887, 2ENR_CLOTY ; P40952, KYE1_KLULA ; //