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Literature summary extracted from

  • Bennoun, P.
    The present model for chlororespiration (2002), Photosynth. Res., 73, 273-277.
    View publication on PubMed

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.3.5.5 15-cis-phytoene + 2 plastoquinone Embryophyta the biosynthetic pathway of carotenoid synthesis involves several steps of desaturation requiring free energy, for instance the transition from phytoene to phytofluene achieved by phytoene desaturase. This reaction is associated with a reduction of plastoquinone. The oxidation of the plastoquinol is then achieved by a plastoquinol:oxygen oxidoreductase. Might additionally mediate the reduction of plastoquinone by internal reductants 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
 ?
1.3.5.5 15-cis-phytoene + plastoquinone Rhodophyta the biosynthetic pathway of carotenoid synthesis involves several steps of desaturation requiring free energy, for instance the transition from phytoene to phytofluene achieved by phytoene desaturase. This reaction is associated with a reduction of plastoquinone. The oxidation of the plastoquinol is then achieved by a plastoquinol:oxygen oxidoreductase. Might additionally mediate the reduction of plastoquinone by internal reductants 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
1.3.5.5 Embryophyta
-
-
-
1.3.5.5 Rhodophyta
-
-
-

Reaction

EC Number Reaction Comment Organism Reaction ID
1.3.5.5 15,9'-dicis-phytofluene + plastoquinone = 9,15,9'-tricis-zeta-carotene + plastoquinol (1b) Embryophyta
a
1.3.5.5 15-cis-phytoene + 2 plastoquinone = 9,15,9'-tricis-zeta-carotene + 2 plastoquinol overall reaction Embryophyta
a
1.3.5.5 15-cis-phytoene + plastoquinone = 15,9'-dicis-phytofluene + plastoquinol (1a) Embryophyta
a

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.3.5.5 15-cis-phytoene + 2 plastoquinone
-
 Embryophyta 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
 ?
1.3.5.5 15-cis-phytoene + 2 plastoquinone
-
 Rhodophyta 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
 ?
1.3.5.5 15-cis-phytoene + 2 plastoquinone the biosynthetic pathway of carotenoid synthesis involves several steps of desaturation requiring free energy, for instance the transition from phytoene to phytofluene achieved by phytoene desaturase. This reaction is associated with a reduction of plastoquinone. The oxidation of the plastoquinol is then achieved by a plastoquinol:oxygen oxidoreductase. Might additionally mediate the reduction of plastoquinone by internal reductants Embryophyta 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
 ?
1.3.5.5 15-cis-phytoene + plastoquinone the biosynthetic pathway of carotenoid synthesis involves several steps of desaturation requiring free energy, for instance the transition from phytoene to phytofluene achieved by phytoene desaturase. This reaction is associated with a reduction of plastoquinone. The oxidation of the plastoquinol is then achieved by a plastoquinol:oxygen oxidoreductase. Might additionally mediate the reduction of plastoquinone by internal reductants Rhodophyta 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
 ?

Cofactor

EC Number Cofactor Comment Organism Structure
1.3.5.5 plastoquinone
-
 Embryophyta

General Information

EC Number General Information Comment Organism
1.3.5.5 physiological function the enzyme is involved in carotenoid biosynthesis Embryophyta
1.3.5.5 physiological function the enzyme is involved in carotenoid biosynthesis Rhodophyta