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spirilloxanthin and 2,2'-diketo-spirilloxanthin biosynthesis

State Icon Reaction EC-Number Confidence maximal confidence score from EnzymeDetector
all-trans-neurosporene + acceptor <=> lycopene + reduced_acceptor 1.3.99.26 all-trans-zeta-carotene desaturase
1.3.99.28 phytoene desaturase (neurosporene-forming)
1.3.99.30 phytoene desaturase (3,4-didehydrolycopene-forming)
1.3.99.31 phytoene desaturase (lycopene-forming)




1-hydroxylycopene <=> lycopene + H2O 4.2.1.131 carotenoid 1,2-hydratase

1-hydroxylycopene + acceptor <=> 1-hydroxy-3,4-didehydrolycopene + reduced_acceptor 1.3.99.27 1-hydroxycarotenoid 3,4-desaturase
1.3.99.30 phytoene desaturase (3,4-didehydrolycopene-forming)
1.3.99.37 1-hydroxy-2-isopentenylcarotenoid 3,4-desaturase



spirilloxanthin + O2 + reduced_ferredoxin_[iron-sulfur]_cluster + H+ <=> (3E,3'E)-1,1'-dimethoxy-3,3',4,4'-tetradehydro-1,1',2,2'-tetrahydro-psi,psi-caroten-2-one + oxidized_ferredoxin + H2O 1.14.15.9 spheroidene monooxygenase

(3E,3'E)-1,1'-dimethoxy-3,3',4,4'-tetradehydro-1,1',2,2'-tetrahydro-psi,psi-caroten-2-one + reduced_ferredoxin_[iron-sulfur]_cluster + O2 + H+ <=> 2,2''-dioxospirilloxanthin + oxidized_ferredoxin + H2O 1.14.15.9 spheroidene monooxygenase

S-adenosyl-L-methionine + 1-hydroxy-3,4-didehydrolycopene <=> 1-methoxy-3,4-didehydrolycopene + S-adenosyl-L-homocysteine + H+ 2.1.1
2.1.1.210 demethylspheroidene O-methyltransferase


1-methoxy-1'-hydroxy-3,4-didehydrolycopene <=> 1-methoxy-3,4-didehydrolycopene + H2O 4.2.1.131 carotenoid 1,2-hydratase

1-methoxy-1'-hydroxy-3,4-didehydrolycopene + acceptor <=> 1-methoxy-1'-hydroxy-3,4,3',4'-tetradehydrolycopene + reduced_acceptor 1.3.99.27 1-hydroxycarotenoid 3,4-desaturase
1.3.99.37 1-hydroxy-2-isopentenylcarotenoid 3,4-desaturase


S-adenosyl-L-methionine + 1-methoxy-1'-hydroxy-3,4,3',4'-tetradehydrolycopene <=> spirilloxanthin + S-adenosyl-L-homocysteine + H+ 2.1.1
2.1.1.210 demethylspheroidene O-methyltransferase


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