2.5.1.32: 15-cis-phytoene synthase
This is an abbreviated version!
For detailed information about 15-cis-phytoene synthase, go to the full flat file.
Word Map on EC 2.5.1.32
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2.5.1.32
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carotenoid
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desaturase
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carotenogenic
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ripening
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carotenogenesis
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orange
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zeaxanthin
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carotene
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astaxanthin
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lutein
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capsicum
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xanthophyl
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annuum
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xanthophyllomyces
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provitamin
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apocarotenoids
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dendrorhous
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violaxanthin
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zeta-carotene
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chromoplast
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nutrition
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alpha-carotene
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ananatis
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pantoea
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krabbe
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canthaxanthin
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analysis
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phaffia
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dunaliella
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9-cis-epoxycarotenoid
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ketolase
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uredovora
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pluvialis
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food industry
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ketocarotenoids
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norflurazon
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beta-cryptoxanthin
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beta-cyclase
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carra
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haematococcus
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biofortification
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biotechnology
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agriculture
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galcs
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rhodozyma
- 2.5.1.32
-
carotenoid
-
desaturase
-
carotenogenic
-
ripening
-
carotenogenesis
- orange
- zeaxanthin
- carotene
- astaxanthin
- lutein
- capsicum
-
xanthophyl
- annuum
- xanthophyllomyces
-
provitamin
-
apocarotenoids
- dendrorhous
- violaxanthin
- zeta-carotene
- chromoplast
- nutrition
- alpha-carotene
- ananatis
- pantoea
- krabbe
- canthaxanthin
- analysis
- phaffia
- dunaliella
-
9-cis-epoxycarotenoid
-
ketolase
- uredovora
- pluvialis
- food industry
-
ketocarotenoids
- norflurazon
- beta-cryptoxanthin
-
beta-cyclase
-
carra
- haematococcus
-
biofortification
- biotechnology
- agriculture
-
galcs
- rhodozyma
Reaction
2 geranylgeranyl diphosphate
=
Synonyms
AtPSY, CitPsy, CrtB, crtYB, EgcrtB, fruit-specific phytoene synthase, geranylgeranyl-diphosphate geranylgeranyltransferase, MaPsy1, MaPsy2, phytoene synthase, phytoene synthase 1, phytoene synthase 2, phytoene synthase/lycopene cyclase, phytoene synthetase, phytoene-synthetase, prephytoene-diphosphate synthase, Psase, PSY, PSY protein, PSY1, PSY1a, PSY1b, PSY1C, PSY2, PSY3, PSY5, synthetase, phytoene, sZmPSY1, TaPSY1, TaPSY2, TaPSY3, YELLOW-FRUITED TOMATO 2, yft2, Zmpsy1
ECTree
2.5.1.32 15-cis-phytoene synthaseAdvanced search results
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results (Source Tissue
Source Tissue on EC 2.5.1.32 - 15-cis-phytoene synthase
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SOURCE TISSUE 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
SOURCE
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the overall expression of all TaPSY genes is low but almost similar to that in aleurone and endosperm. TaPSY2 expression is nearly similar in all the seed tissues and layers. The highest expression of TaPSY1 and TaPSY3 is observed in embryo, followed by pericarp. The expression of TaPSY3 is higher than TaPSY1 in both embryo and pericarp
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the expression of TaPSY1 and TaPSY3 is significantly higher than TaPSY2 in stem, leaf, and flag leaf
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inner corona of, in all stages the steady-state phytoene synthase transcript levels are low
additional information
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carotenoid accumulation in endosperm requires expression of isoform PSY1. Total carotenoid content correlates with endosperm transcript levels at day 20 after pollination for PSY1, but not for isoforms PSY2 or PSY3
MdPSY2 and MdPSY5 are highly expressed during fruit ripening in line with an increment in carotenoid content in fruits
MdPSY2 is highly expressed during fruit ripening in line with an increment in carotenoid content in fruits
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MaPsy transcripts are detected both in the peel and pulp of the banana fruit
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trans-splicing of PHYTOENE SYNTHASE 1 alters tomato fruit color by map-based cloning
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the expression of TaPSY1 and TaPSY3 is significantly higher than TaPSY2 in stem, leaf, and flag leaf
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carotenogenesis requires phytochrome-dependent and phytochrome-independent photoregulation of isoform PSY2 plus non-photoregulated expression of isoform PSY1
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isoform PSY1 is required for carotenogenesis in the dark and for heat stress tolerance
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intense up-regulation of transcripts during increasing abscisic acid formation upon salt treatment and drought
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low expression of TaPSY1, TaPSY2 and TaPSY3 as compared to the green tissues
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drought-stressed root shows elevated levels of isoform PSY3 transcripts and abscisic acid, the effect is reversed by hydratation. Increase in isoform PSY3 mRNA correlates with carotenoid accumulation and with increase in 9-cis-epoxycarotenoid dioxygenase transcripts, and blocking of carotenoid biosynthesis interferes with stress-induced accumulation of abscisic acid
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the expression of TaPSY1 and TaPSY3 is significantly higher than TaPSY2 in stem, leaf, and flag leaf
additional information
the genes encoding chloroplast PSY enzymes involved in photosynthesis are light-regulated, whereas those preferentially found in the root are not responsive to light but to salt, osmotic, or water stress, and specifically to abscisic acid
additional information
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the genes encoding chloroplast PSY enzymes involved in photosynthesis are light-regulated, whereas those preferentially found in the root are not responsive to light but to salt, osmotic, or water stress, and specifically to abscisic acid
additional information
the enzyme expression is regulated during leaf development/expansion, organ-specific enzyme expression
additional information
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isoform PSY3 transcript levels show almost no tissue-specific differences and are not affected by light. Transcripts are up-regulated during increasing abscisic acid formation upon salt treatment and drought, with simultaneous induction of genes encoding 9-cis-epoxycarotenoid dioxygenases
