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EC 1.3.5.5 Details
EC number
1.3.5.5
Accepted name
15-cis-phytoene desaturase
Reaction
15-cis-phytoene + 2 plastoquinone = 9,15,9′-tricis-ζ-carotene + 2 plastoquinol (overall reaction);; (1a) 15-cis-phytoene + plastoquinone = 15,9′-dicis-phytofluene + plastoquinol;; (1b) 15,9′-dicis-phytofluene + plastoquinone = 9,15,9′-tricis-ζ-carotene + plastoquinol
Other name(s)
phytoene desaturase (ambiguous), PDS, plant-type phytoene desaturase
Systematic name
15-cis-phytoene:plastoquinone oxidoreductase
Comment
This enzyme is involved in carotenoid biosynthesis in plants and cyanobacteria. The enzyme from Synechococcus can also use NAD+ and NADP+ as electron acceptor under anaerobic conditions. The enzyme from Gentiana lutea shows no activity with NAD+ or NADP+ [1].
History
created 2011
EC Tree
1.12.1.1 created 1965, deleted 1972