ID 1.3.1.124 DE 2,4-dienoyl-CoA reductase [(3E)-enoyl-CoA-producing]. AN Delta(2),Delta(4)-dienoyl-CoA reductase. CA (1) a (2E,4E)-dienoyl-CoA + H(+) + NADPH = a 4,5-saturated-(3E)-enoyl-CoA CA + NADP(+). CA (2) a (2E,4Z)-dienoyl-CoA + H(+) + NADPH = a 4,5-saturated-(3E)-enoyl-CoA CA + NADP(+). CC -!- This enzyme, characterized from eukaryotic organisms, catalyzes the CC reduction of either (2E,4E)-2,4-dienoyl-CoA or (2E,4Z)-2,4-dienoyl- CC CoA to (3E)-3-enoyl-CoA. CC -!- The best substrates for the enzyme from bovine liver have a chain- CC length of 8 or 10. CC -!- Mammals possess both mitochondrial and peroxisomal variants of this CC enzyme. cf. EC 1.3.1.34. DR Q23116, DEC12_CAEEL; Q9LTV6, DECR2_ARATH; Q6NV34, DECR2_DANRE; DR Q9NUI1, DECR2_HUMAN; Q9WV68, DECR2_MOUSE; Q5RBV3, DECR2_PONAB; DR Q9Z2M4, DECR2_RAT ; Q22230, DECR_CAEEL ; Q16698, DECR_HUMAN ; DR Q9CQ62, DECR_MOUSE ; Q64591, DECR_RAT ; P32573, SPS19_YEAST; //