label: 3,8'-biflaviolin + 2 oxidized [2Fe-2S]-[ferredoxin] + 2 H2O => 2 flaviolin + 2 reduced [2Fe-2S]-[ferredoxin] + O2 + H(+)
label_lc: 3,8'-biflaviolin + 2 oxidized [2fe-2s]-[ferredoxin] + 2 h2o => 2 flaviolin + 2 reduced [2fe-2s]-[ferredoxin] + o2 + h(+)