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Information on EC 1.3.7.5 - phycocyanobilin:ferredoxin oxidoreductase

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IUBMB Comments
Catalyses the four-electron reduction of biliverdin IXalpha (2-electron reduction at both the A and D rings). Reaction proceeds via an isolatable 2-electron intermediate, 181,182-dihydrobiliverdin. Flavodoxins can be used instead of ferredoxin. The direct conversion of biliverdin IXalpha (BV) to (3Z)-phycocyanolbilin (PCB) in the cyanobacteria Synechocystis sp. PCC 6803, Anabaena sp. PCC7120 and Nostoc punctiforme is in contrast to the proposed pathways of PCB biosynthesis in the red alga Cyanidium caldarium, which involves (3Z)-phycoerythrobilin (PEB) as an intermediate and in the green alga Mesotaenium caldariorum, in which PCB is an isolable intermediate.
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The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
3Z-phycocyanobilin:ferredoxin oxidoreductase, ferredoxin:3Z-phycocyanobilin oxidoreductase, oxidoreductase, ferredoxin:3Z-phycocyanobilin, Pcb:Fd oxidoreductase, PCB:ferredoxin oxidoreductase, PcyA, phycocyanobilin synthase, phycocyanobilin-ferredoxin oxidoreductase, phycocyanobilin:ferredoxin oxidoreductase, more
REACTION
REACTION DIAGRAM
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ORGANISM
UNIPROT
LITERATURE
(3Z)-phycocyanobilin + 4 oxidized ferredoxin = biliverdin IXalpha + 4 reduced ferredoxin
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