Reaction: a long-chain acyl-CoA + electron-transfer flavoprotein = a long-chain trans-2,3-dehydroacyl-CoA + reduced electron-transfer flavoprotein
Glossary: a long-chain acyl-CoA = an acyl-CoA thioester where the acyl chain contains 13 to 22 carbon atoms.
Other name(s): palmitoyl-CoA dehydrogenase; palmitoyl-coenzyme A dehydrogenase; long-chain acyl-coenzyme A dehydrogenase; long-chain-acyl-CoA:(acceptor) 2,3-oxidoreductase; ACADL (gene name).
Systematic name: long-chain acyl-CoA:electron-transfer flavoprotein 2,3-oxidoreductase
Comments: Contains FAD as prosthetic group. One of several enzymes that catalyse the first step in fatty acids β-oxidation. The enzyme from pig liver can accept substrates with acyl chain lengths of 6 to at least 16 carbon atoms. The highest activity was found with C12, and the rates with C8 and C16 were 80 and 70%, respectively . The enzyme from rat can accept substrates with C8-C22. It is most active with C14 and C16, and has no activity with C4, C6 or C24 . cf. EC 22.214.171.124, short-chain acyl-CoA dehydrogenase, EC 126.96.36.199, medium-chain acyl-CoA dehydrogenase, and EC 188.8.131.52, very-long-chain acyl-CoA dehydrogenase.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 59536-74-2
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