ID 1.3.8.9 DE very-long-chain acyl-CoA dehydrogenase. CA a very-long-chain 2,3-saturated fatty acyl-CoA + H(+) + oxidized CA [electron-transfer flavoprotein] = a very-long-chain (2E)-enoyl-CoA + CA reduced [electron-transfer flavoprotein]. CC -!- One of several enzymes that catalyze the first step in fatty acids CC beta-oxidation. CC -!- The enzyme is most active toward long-chain acyl-CoAs such as C14, CC C16 and C18, but is also active with very-long-chain acyl-CoAs up to CC 24 carbons. CC -!- It shows no activity for substrates of less than 12 carbons. CC -!- It's specific activity toward palmitoyl-CoA is more than 10-fold that CC of the long-chain acyl-CoA dehydrogenase. cf. EC 1.3.8.1, EC 1.3.8.7 CC and EC 1.3.8.8. CC -!- Formerly EC 1.3.99.3. DR P48818, ACADV_BOVIN; P49748, ACADV_HUMAN; Q8HXY7, ACADV_MACFA; DR P50544, ACADV_MOUSE; P45953, ACADV_RAT ; //