ID   1.3.7.4
DE   Phytochromobilin:ferredoxin oxidoreductase.
AN   P-Phi-B synthase.
AN   PFB synthase.
AN   Phytochromobilin synthase.
CA   (3Z)-phytochromobilin + oxidized ferredoxin = biliverdin IX-alpha +
CA   reduced ferredoxin.
CC   -!- Catalyzes the two-electron reduction of biliverdin IX-alpha.
CC   -!- Can use 2Fe-2S ferredoxins from a number of sources as acceptor but
CC       not the 4Fe-4S ferredoxin from Clostridium pasteurianum.
CC   -!- The isomerization of (3Z)-phytochromobilin to (3E)-phytochromobilin
CC       is thought to occur prior to covalent attachment to apophytochrome in
CC       the plant cell cytoplasm.
CC   -!- Flavodoxins can be used instead of ferredoxin.
DR   Q9SR43, PFBS_ARATH ;
//