label: heme b + 6 reduced [2Fe-2S]-[ferredoxin] + 3 O2 + 8 H(+) => biliverdin IXalpha + CO + Fe(2+) + 6 oxidized [2Fe-2S]-[ferredoxin] + 3 H2O
label_lc: heme b + 6 reduced [2fe-2s]-[ferredoxin] + 3 o2 + 8 h(+) => biliverdin ixalpha + co + fe(2+) + 6 oxidized [2fe-2s]-[ferredoxin] + 3 h2o