MetaCyc Pathway: spirilloxanthin and 2,2'-diketo-spirilloxanthin biosynthesis in Rhodopseudomonas palustris CGA009

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Reactions and Genes Benzoate (C), sodium fluoride stress
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all-trans neurosporene + an oxidized electron carrier→all-trans-lycopene + a reduced two electron carrier (EC 1.3.99.26; 1.3.99.30; 1.3.99.31)
No genes
all-trans-lycopene + H2O→rhodopin (EC 4.2.1.131)
No genes
rhodopin + an oxidized electron carrier→3,4-didehydrorhodopin + a reduced two electron carrier (EC 1.3.99.27)
TX73_007805 -1.2
3,4-didehydrorhodopin + S-adenosyl-L-methionine→anhydrorhodovibrin + S-adenosyl-L-homocysteine + H+
No genes
anhydrorhodovibrin + H2O→rhodovibrin (EC 4.2.1.131)
No genes
rhodovibrin + an oxidized electron carrier→hydroxyspirilloxanthin + a reduced two electron carrier
TX73_007805 -1.2
hydroxyspirilloxanthin + S-adenosyl-L-methionine→spirilloxanthin + S-adenosyl-L-homocysteine + H+
No genes
spirilloxanthin + 2 dioxygen + 4 H+ + 4 a reduced ferredoxin [iron-sulfur] cluster→2-oxospirilloxanthin + 4 an oxidized ferredoxin [iron-sulfur] cluster + 3 H2O (EC 1.14.15.9)
No genes
2-oxospirilloxanthin + 2 dioxygen + 4 H+ + 4 a reduced ferredoxin [iron-sulfur] cluster→2,2'-dioxospirilloxanthin + 4 an oxidized ferredoxin [iron-sulfur] cluster + 3 H2O (EC 1.14.15.9)
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