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1.3.5.6: 9,9'-dicis-zeta-carotene desaturase

This is an abbreviated version!
For detailed information about 9,9'-dicis-zeta-carotene desaturase, go to the full flat file.

Word Map on EC 1.3.5.6

Reaction

7,9,9'-tricis-neurosporene
+
a quinone
=
7,9,7',9'-tetracis-lycopene
+
a quinol

Synonyms

Carotene 7,8-desaturase, carotene desaturase, CrtI, CrtQa, CrtQb, Desaturase, zeta-carotene, Desaturase, zeta-carotene (Capsicum annuum clone pCapZDS precursor reduced), Desaturase, zeta-carotene (Nostoc muscorum clone pZDS1A reduced), Desaturase, zeta-carotene (Synechocystis strain PCC 6803 clone cs0223/cs0128/ps0014/cs0681/cs0294 gene ctrQ-2 reduced), EC 1.14.99.30, EutZds, genBank D90914-derived protein GI 1653487, phytoene desaturase, ZDS, ZDS/SPC1, ZDS1, ZDS2, zeta-carotene desaturase, zeta-carotene desaturase (Anabaena strain PCC 7120 clone pZDS1A), zeta-carotene desaturase (Capsicum annuum clone pCapZDS precursor reduced), zeta-carotene desaturase (Synechocystis strain PCC 6803 gene crtQ-2), zeta-carotene desaturase 1, zeta-carotene desaturase 2

ECTree

     1 Oxidoreductases
         1.3 Acting on the CH-CH group of donors
             1.3.5 With a quinone or related compound as acceptor
                1.3.5.6 9,9'-dicis-zeta-carotene desaturase

Natural Substrates Products

Natural Substrates Products on EC 1.3.5.6 - 9,9'-dicis-zeta-carotene desaturase

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NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
7,9,9'-tricis-neurosporene + a quinone
7,9,7',9'-tetracis-lycopene + a quinol
show the reaction diagram
9,9'-dicis-zeta-carotene + 2 quinone
7,9,7',9'-tetracis-lycopene + 2 quinol
show the reaction diagram
9,9'-dicis-zeta-carotene + a quinone
7,9,9'-tricis-neurosporene + a quinol
show the reaction diagram
neurosporene + a quinone
lycopene + a quinol
show the reaction diagram
-
-
-
-
?
phytoene + quinone
7,9,9'-tricis-neurosporene + quinol
show the reaction diagram
zeta-carotene + 2 AH2 + 2 O2
lycopene + 2 A + 4 H2O
show the reaction diagram
zeta-carotene + 2 quinone
lycopene + 2 quinol
show the reaction diagram
-
zeta-carotene desaturase has no preference for certain isomers. The nature of the isomers formed during catalysis depends strictly on the isomeric composition of the substrate. Different lycopene isomers are formed, including substantial amounts of the all-trans form, together with 7,7',9,9'-tetracis prolycopene via the corresponding neurosporene isomers
-
-
?
zeta-carotene + a quinone
neurosporene + a quinol
show the reaction diagram
-
-
-
-
?
zeta-carotene + AH2 + O2
neurosporene + A + H2O
show the reaction diagram
-
-
-
?
additional information
?
-