ID 1.3.8.5 DE short-chain 2-methylacyl-CoA dehydrogenase. AN 2-methylacyl-CoA dehydrogenase. AN 2-methyl branched chain acyl-CoA dehydrogenase. AN 2-methyl-branched-chain-enoyl-CoA reductase. AN branched-chain acyl-CoA dehydrogenase. CA 2-methylbutanoyl-CoA + H(+) + oxidized [electron-transfer flavoprotein] = CA (2E)-2-methylbut-2-enoyl-CoA + reduced [electron-transfer flavoprotein]. CC -!- The mammalian enzyme catalyzes an oxidative reaction as a step in the CC mitochondrial beta-oxidation of short-chain 2-methyl fatty acids and CC participates in isoleucine degradation. CC -!- The enzyme from the parasitic helminth Ascaris suum catalyzes a CC reductive reaction as part of a fermentation pathway, shuttling CC reducing power from the electron-transport chain to 2-methyl CC branched-chain enoyl CoA. CC -!- Formerly EC 1.3.1.52 and EC 1.3.99.12. DR Q0NXR6, ACAD8_BOVIN; Q9UKU7, ACAD8_HUMAN; Q9D7B6, ACAD8_MOUSE; DR Q5EAD4, ACDSB_BOVIN; Q54RR5, ACDSB_DICDI; P45954, ACDSB_HUMAN; DR Q9DBL1, ACDSB_MOUSE; Q5RF40, ACDSB_PONAB; P70584, ACDSB_RAT ; DR Q9FS88, MBCD_SOLTU ; //