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See also alternative pathway to lycopene in cyanobacteria and higher plants.
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enzyme nomenclature homepage
cyclic carotenoid biosynthesis
bacterioxanthin biosynthesis
neurosporaxanthin biosynthesis
spheroidene biosynthesis
spirilloxanthin biosynthesis
phytoene biosynthesis
EC 1.3.99.26 all-trans-ζ-carotene desaturase
EC 1.3.99.28 phytoene desaturase (neurosporene-forming)
EC 1.3.99.29 phytoene desaturase (ζ-carotene-forming)
EC 1.3.99.30 phytoene desaturase (3,4-didehydrolycopene-forming)
EC 1.3.99.31 phytoene desaturase (lycopene-forming)