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Literature summary for 1.3.5.5 extracted from

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

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
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
-
?
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

Organism UniProt Comment Textmining
Embryophyta
-
-
-
Rhodophyta
-
-
-

Reaction

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

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
15-cis-phytoene + 2 plastoquinone
-
Embryophyta 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
?
15-cis-phytoene + 2 plastoquinone
-
Rhodophyta 9,15,9'-tricis-zeta-carotene + 2 plastoquinol
-
?
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
-
?
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

Cofactor Comment Organism Structure
plastoquinone
-
Embryophyta

General Information

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