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BRENDA KEGG MetaCyc

C30 carotenoid biosynthesis (BRENDA)

:= BRENDA, := KEGG, := MetaCyc, := SABIO-RK
:= amino acid sequences := show the reaction diagram
EC Number
Reaction
Pathways
Reaction IDs
Stoichiometry Check
Missing Substrate
Missing Product
Commentary
Remark
4,4'-diapolycopenoate synthase
4,4'-diapolycopene-4,4'-dial + 2 H2O + 2 acceptor = 4,4'-diapolycopene-4,4'-dioate + 2 reduced acceptor
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natural substrates, generic, polymer
diapolycopene oxygenase
4,4'-diapolycopene + 4 reduced acceptor + 4 O2 = 4,4'-diapolycopenedial + 4 acceptor + 6 H2O
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: 4-step reaction
natural substrates, generic, polymer
presqualene diphosphate synthase
2 (2E,6E)-farnesyl diphosphate = diphosphate + presqualene diphosphate
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: first step of two-step reaction (R06223, R00702+R02872) first step of two-step reaction (R07652, R00702+R09793)
: This reaction is catalyzed by the presqualene diphosphate synthase (SSL-1) enzyme of the green alga TAX-869301. However, it is also a partial reaction catalyzed by two different enzymes - |FRAME:RXN-13162 "EC 2.5.1.21, squalene synthase"| and EC 2.5.1.96, 4,4'-diapophytoene synthase. The product, CPD-465, is only fromed by the presqualene diphosphate synthase of TAX-38881. In the other two cases, it is never released from the enzyme and is directly converted to the final product, squalene and 4,4'-diapophytoene, respectively.
natural substrates
squalene synthase
2 (2E,6E)-farnesyl diphosphate = diphosphate + presqualene diphosphate
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: first step of two-step reaction (R06223, R00702+R02872) first step of two-step reaction (R07652, R00702+R09793)
: This reaction is catalyzed by the presqualene diphosphate synthase (SSL-1) enzyme of the green alga TAX-869301. However, it is also a partial reaction catalyzed by two different enzymes - |FRAME:RXN-13162 "EC 2.5.1.21, squalene synthase"| and EC 2.5.1.96, 4,4'-diapophytoene synthase. The product, CPD-465, is only fromed by the presqualene diphosphate synthase of TAX-38881. In the other two cases, it is never released from the enzyme and is directly converted to the final product, squalene and 4,4'-diapophytoene, respectively.
natural substrates
4,4'-diapophytoene synthase
2 (2E,6E)-farnesyl diphosphate = diphosphate + presqualene diphosphate
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: first step of two-step reaction (R06223, R00702+R02872) first step of two-step reaction (R07652, R00702+R09793)
: This reaction is catalyzed by the presqualene diphosphate synthase (SSL-1) enzyme of the green alga TAX-869301. However, it is also a partial reaction catalyzed by two different enzymes - |FRAME:RXN-13162 "EC 2.5.1.21, squalene synthase"| and EC 2.5.1.96, 4,4'-diapophytoene synthase. The product, CPD-465, is only fromed by the presqualene diphosphate synthase of TAX-38881. In the other two cases, it is never released from the enzyme and is directly converted to the final product, squalene and 4,4'-diapophytoene, respectively.
natural substrates
4,4'-diapophytoene synthase
presqualene diphosphate = 15-cis-4,4'-diapophytoene + diphosphate
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: second step of two-step reaction (R07652, R00702+R09793)
: Requires Mn2+. Typical of TAX-1280 and some other bacteria such as TAX-28063 sp. This is one of two reactions catalyzed by the enzyme.
natural substrates
presqualene diphosphate = 15-cis-4,4'-diapophytoene + diphosphate
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: second step of two-step reaction (R07652, R00702+R09793)
: Requires Mn2+. Typical of TAX-1280 and some other bacteria such as TAX-28063 sp. This is one of two reactions catalyzed by the enzyme.
natural substrates
4,4'-diapophytoene desaturase (4,4'-diapolycopene-forming)
15-cis-4,4'-diapophytoene + FAD = all-trans-4,4'-diapophytofluene + FADH2
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: 4-step reaction (see R09719+R09654)
: This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
natural substrates
15-cis-4,4'-diapophytoene + FAD = all-trans-4,4'-diapophytofluene + FADH2
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: 4-step reaction (see R09719+R09654)
: This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
natural substrates
all-trans-4,4'-diapophytofluene + FAD = all-trans-4,4'-diapo-zeta-carotene + FADH2
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natural substrates
4,4'-diapophytoene desaturase (4,4'-diapolycopene-forming)
all-trans-4,4'-diapophytofluene + FAD = all-trans-4,4'-diapo-zeta-carotene + FADH2
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natural substrates
all-trans-4,4'-diapo-zeta-carotene + FAD = all-trans-4,4'-diaponeurosporene + FADH2
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: This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
natural substrates
4,4'-diapophytoene desaturase (4,4'-diapolycopene-forming)
all-trans-4,4'-diapo-zeta-carotene + FAD = all-trans-4,4'-diaponeurosporene + FADH2
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: This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
natural substrates
diapolycopene oxygenase
4,4'-diaponeurosporene + AH2 + O2 = 4,4'-diaponeurosporen-4-al + A + H2O
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: two-step reaction intermediate (4-hydroxy-4,4'-diaponeurosporene)
natural substrates, generic
1.14.99.M5
4,4'-diaponeurosporene + AH2 + O2 = 4,4'-diaponeurosporen-4-al + A + H2O
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: two-step reaction intermediate (4-hydroxy-4,4'-diaponeurosporene)
natural substrates, generic
4,4'-diaponeurosporen-aldehyde dehydrogenase
4,4'-diaponeurosporen-4-al + NADP+ = 4,4'-diaponeurosporenoic acid + NADPH + H+
incomplete
O1H3
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natural substrates
4,4'-diaponeurosporenoate glucosyltransferase
4,4' diaponeurosporenoate + UDP-alpha-D-glucose = beta-D-glucosyl 4,4'-diaponeurosporenoate + UDP
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natural substrates
all-trans-4,4'-diaponeurosporene + FAD = all-trans-4,4'-diapolycopene + FADH2
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: This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
natural substrates, generic, polymer
4,4'-diapophytoene desaturase (4,4'-diapolycopene-forming)
all-trans-4,4'-diaponeurosporene + FAD = all-trans-4,4'-diapolycopene + FADH2
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: This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
natural substrates, generic, polymer