MetaCyc Pathway: phycoviolobilin 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)
Phycocyanobilin:ferredoxin oxidoreductase (in reverse):
(Z,Z)-biliverdin-IX α + 4 H+ + 4 a reduced ferredoxin [iron-sulfur] cluster→(2R,3Z)-phycocyanobilin + 4 an oxidized ferredoxin [iron-sulfur] cluster (EC 1.3.7.5)
Synpcc7942_1225 (pcyA)
(2R,3Z)-phycocyanobilin→(2R,3E)-phycocyanobilin (spontaneous)
No genes
(2R,3E)-phycocyanobilin + an apo-phycoerythrocyanin α-subunit→a [phycoerythrocyanin α-subunit]-Cys84-(15Z)-phycoviolobilin (EC 4.4.1.31)
No genes

Links:

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