phytochromobilin:ferredoxin oxidoreductase

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Word Map on EC


+ 2 oxidized ferredoxin =
biliverdin IXalpha
+ 2 reduced ferredoxin


3Z-phytochromobilin:ferredoxin oxidoreductase, At3g09150, HT-HY2, HY2, PFB synthase, phytochromobilin synthase, PphiB synthase, ZMHy2


     1 Oxidoreductases
         1.3 Acting on the CH-CH group of donors
             1.3.7 With an iron-sulfur protein as acceptor
       phytochromobilin:ferredoxin oxidoreductase


Cloned on EC - phytochromobilin:ferredoxin oxidoreductase

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development of a system to produce phytochromobilin in Escherichia coli by coexpression of heme oxygenase and phytochromobilin:ferredoxin oxidoreductase in a single operon in conjunction with apophytochrome using two compatible plasmids
expressed in Escherichia coli strain BL21
expression in Nicotiana plumbaginifolia and Escherichia coli
expression in Pichia pastoris
overexpression in Synechococcus sp. strain PCC 7002, from endogenous plasmid pAQ1 under the control of the Synechocystis sp. strain PCC 6803 cpcBA promoter, leads to overproduction of phytochromobilin, the cells show a phenotype only slightly less pigmented and blue-green than the wild-type, the strain producing phycobiliproteins carrying phytochromobilin grow much more slowly at low light intensity. Transformant colonies in which pcyA is inactivated in the HY2 overexpression background does not develop a chlorotic appearance, and segregation of the mutant and wild-type alleles is rapidly achieved
recombinant functional expression of HT-HY2 in Escherichia coli with production of phytochromobilin, functional co-expression with cyanobacterial heme oxygenase, and the phycocyanin alpha-subunit, CpcA, from Synechocystis sp. PCC 6803 or Synechococcus sp. PCC 7002, and with the phycocyanin alpha-subunit phycocyanobilin lyase, CpcE/CpcF, or the phycoerythrocyanin alpha-subunit phycocyanobilin isomerizing lyase, PecE/PecF, from Noctoc sp. PCC 7120. Production levels of fluorescent pigments and chromophore analysis, overview
wild type and mutant allels