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Information on EC 1.3.7.4 - phytochromobilin:ferredoxin oxidoreductase

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IUBMB Comments
Catalyses the two-electron reduction of biliverdin IXalpha. Can use [2Fe-2S] ferredoxins from a number of sources as acceptor but not the [4Fe-4S] ferredoxin from Clostridium pasteurianum. The isomerization of (3Z)-phytochromobilin to (3E)-phytochromobilin is thought to occur prior to covalent attachment to apophytochrome in the plant cell cytoplasm. Flavodoxins can be used instead of ferredoxin.
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The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
3Z-phytochromobilin:ferredoxin oxidoreductase, At3g09150, HT-HY2, HY2, PFB synthase, phytochromobilin synthase, PphiB synthase, ZMHy2, more
REACTION
REACTION DIAGRAM
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ORGANISM
UNIPROT
LITERATURE
(3Z)-phytochromobilin + 2 oxidized ferredoxin = biliverdin IXalpha + 2 reduced ferredoxin
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