nonanoyl-CoA + oxidized [electron-transfer flavoprotein] + H(+) <=> (2E)-nonenoyl-CoA + reduced [electron-transfer flavoprotein]
nonanoyl-coa + oxidized [electron-transfer flavoprotein] + h(+) <=> (2e)-nonenoyl-coa + reduced [electron-transfer flavoprotein]
nonanoyl-CoA + oxidized [electron-transfer flavoprotein] + H(+) <=> (2E)-nonenoyl-CoA + reduced [electron-transfer flavoprotein]
nonanoyl-coa + oxidized [electron-transfer flavoprotein] + h(+) <=> (2e)-nonenoyl-coa + reduced [electron-transfer flavoprotein]