ID 1.3.8.1 DE short-chain acyl-CoA dehydrogenase. AN butanoyl-CoA dehydrogenase. AN butyryl dehydrogenase. AN short-chain acyl CoA dehydrogenase. AN unsaturated acyl-CoA reductase. CA a short-chain 2,3-saturated fatty acyl-CoA + H(+) + oxidized [electron- CA transfer flavoprotein] = a short-chain (2E)-enoyl-CoA + reduced CA [electron-transfer flavoprotein]. CC -!- One of several enzymes that catalyze the first step in fatty acids CC beta-oxidation. CC -!- The enzyme catalyzes the oxidation of saturated short-chain acyl-CoA CC thioesters to give a trans 2,3-unsaturated product by removal of the CC two pro-R hydrogen atoms. CC -!- The enzyme from beef liver accepts substrates with acyl chain lengths CC of 3 to 8 carbon atoms. CC -!- The highest activity was reported with either butanoyl-CoA or CC pentanoyl-CoA. CC -!- The enzyme from rat has only 10% activity with hexanoyl-CoA (compared CC to butanoyl-CoA) and no activity with octanoyl-CoA. cf. EC 1.3.8.7, CC EC 1.3.8.8 and EC 1.3.8.9. CC -!- Formerly EC 1.3.2.1 and EC 1.3.99.2. DR Q3ZBF6, ACADS_BOVIN; P16219, ACADS_HUMAN; Q07417, ACADS_MOUSE; DR P79273, ACADS_PIG ; Q5RAS0, ACADS_PONAB; P15651, ACADS_RAT ; DR P52042, ACDS_CLOAB ; Q06319, ACDS_MEGEL ; Q0AVM4, BCD1_SYNWW ; DR Q0AVA8, BCD2_SYNWW ; Q3L887, FADE5_MYCS2; O53666, FADE5_MYCTU; DR Q3SZI8, IVD_BOVIN ; P26440, IVD_HUMAN ; Q9JHI5, IVD_MOUSE ; DR Q5RBD5, IVD_PONAB ; P12007, IVD_RAT ; //