label: L-prolyl-[peptidyl-carrier protein] + 2 oxidized [electron-transfer flavoprotein] + H(+) => (1H-pyrrole-2-carbonyl)-[peptidyl-carrier protein] + 2 reduced [electron-transfer flavoprotein]
label_lc: l-prolyl-[peptidyl-carrier protein] + 2 oxidized [electron-transfer flavoprotein] + h(+) => (1h-pyrrole-2-carbonyl)-[peptidyl-carrier protein] + 2 reduced [electron-transfer flavoprotein]