a ubiquinone + reduced [electron-transfer flavoprotein] = a ubiquinol + oxidized [electron-transfer flavoprotein] + H(+)
a ubiquinone + reduced [electron-transfer flavoprotein] = a ubiquinol + oxidized [electron-transfer flavoprotein] + h(+)
"electron-transferring-flavoprotein dehydrogenase"
"electron-transferring-flavoprotein dehydrogenase"