MetaCyc Pathway: phycourobilin biosynthesis in Synechococcus elongatus PCC 7942

Add experiment(s):


protoheme + 3 dioxygen + 8 H+ + 6 a reduced ferredoxin [iron-sulfur] cluster→(Z,Z)-biliverdin-IX α + carbon monoxide + Fe2+ + 6 an oxidized ferredoxin [iron-sulfur] cluster + 3 H2O (EC 1.14.15.20)
Synpcc7942_1858 (ho1)
15,16-dihydrobiliverdin:ferredoxin oxidoreductase (in reverse):
(Z,Z)-biliverdin-IX α + 2 H+ + 2 a reduced ferredoxin [iron-sulfur] cluster→15,16-dihydrobiliverdin + 2 an oxidized ferredoxin [iron-sulfur] cluster (EC 1.3.7.2)
No genes
Phycoerythrobilin:ferredoxin oxidoreductase (in reverse):
15,16-dihydrobiliverdin + 2 H+ + 2 a reduced ferredoxin [iron-sulfur] cluster→(3Z)-phycoerythrobilin + 2 an oxidized ferredoxin [iron-sulfur] cluster (EC 1.3.7.3)
No genes
(3Z)-phycoerythrobilin→(3E)-phycoerythrobilin (spontaneous)
No genes
(3E)-phycoerythrobilin + an apo-[C-phycocyanin α-subunit]→[C-phycocyanin α-subunit]-Cys84-phycourobilin (EC 4.4.1.33)
No genes

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Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information