(3Z)-phytochromobilin + 2 oxidized [2Fe-2S]-[ferredoxin] = biliverdin IXalpha + 2 reduced [2Fe-2S]-[ferredoxin] + 2 H(+)
(3z)-phytochromobilin + 2 oxidized [2fe-2s]-[ferredoxin] = biliverdin ixalpha + 2 reduced [2fe-2s]-[ferredoxin] + 2 h(+)
"PPhiB synthase"
"pphib synthase"