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Phytoene (/ˈfaɪtoʊiːn/) is a 40-carbon
intermediate in the
biosynthesis of carotenoids. The
synthesis of
phytoene is the
first committed step in the synthesis...
- GGPP are then
coupled by
phytoene synthase to form
phytoene. Next,
phytoene desaturase creates four
double bonds in the
phytoene molecule to form lycopene...
- GGPP
molecules condense via
phytoene synthase (PSY),
forming the 15-cis
isomer of
phytoene. PSY
belongs to the squalene/
phytoene synthase family and is homologous...
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Phytoene synthase (EC 2.5.1.32, prephytoene-diphosphate synthase, 15-cis-
phytoene synthase, PSase, geranylgeranyl-diphosphate geranylgeranyltransferase)...
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Phytoene desaturase may
refer to: 15-Cis-
phytoene desaturase,
enzymes involved in the
carotenoid biosynthesis in
plants and
cyanobacteria Phytoene desaturase...
-
Bramley discovered that a
single phytoene desaturase gene (bacterial CrtI) can be used to
produce lycopene from
phytoene in GM tomato,
rather than having...
- Beta-Carotene Gamma-Carotene Delta-Carotene
Lycopene Neurosporene Phytofluene Phytoene Xanthophylls:
Canthaxanthin Cryptoxanthin Zeaxanthin Astaxanthin Lutein...
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Phytoene desaturase (lycopene-forming) (CrtI, four-step
phytoene desaturase) (EC 1.3.99.31, 15-cis-
phytoene:acceptor
oxidoreductase (lycopene-forming))...
- follows:
Formation of
phytoene: The
enzyme phytoene synthase (PSY)
catalyzes the
condensation of two GGPP
molecules to
produce phytoene, a
colorless carotenoid...
- It is the
second product of
carotenoid biosynthesis. It is
formed from
phytoene in a
desaturation reaction leading to the
formation of five conjugated...