1.3.99.29: phytoene desaturase (zeta-carotene-forming)
This is an abbreviated version!
For detailed information about phytoene desaturase (zeta-carotene-forming), go to the full flat file.
Word Map on EC 1.3.99.29
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1.3.99.29
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carotenoid
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lycopene
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desaturation
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neurosporene
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cyanobacterium
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beta-carotene
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desaturases
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gloeobacter
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carotenogenic
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prolycopene
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violaceus
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rhodobacter
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purple
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echinenone
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analysis
- 1.3.99.29
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carotenoid
- lycopene
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desaturation
- neurosporene
- cyanobacterium
- beta-carotene
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desaturases
- gloeobacter
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carotenogenic
- prolycopene
- violaceus
- rhodobacter
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purple
- echinenone
- analysis
Reaction
+ 2 acceptor = + 2 reduced acceptor
Synonyms
4-step phytoene desaturase, bacterial-type phytoene desaturase, crtI-type phytoene desaturase, Crtla, glr0867, PDS, phytoene desaturase
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General Information
General Information on EC 1.3.99.29 - phytoene desaturase (zeta-carotene-forming)
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malfunction
metabolism
physiological function
additional information
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Crtla deletion mutant, absence of CrtIa blocks the synthesis of colored carotenoids, indicating an early role in carotenogenesis
malfunction
the light-sensitive, phytoene-accumulating mutant, pds1-1, isolated in Chlamydomonas reinhardtii, is leaky for PDS activity. It shows decreased accumulation of downstream colored carotenoids. The pds1-2 and pds1-3 allele products completely lack PDS activity, the null mutants accumulate only phytoene and no other carotenoids. All three phytoene-accumulating mutants exhibit lower growth rates and reduced plating efficiency compared to wild-type cells and white phytoene synthase mutants
malfunction
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the light-sensitive, phytoene-accumulating mutant, pds1-1, isolated in Chlamydomonas reinhardtii, is leaky for PDS activity. It shows decreased accumulation of downstream colored carotenoids. The pds1-2 and pds1-3 allele products completely lack PDS activity, the null mutants accumulate only phytoene and no other carotenoids. All three phytoene-accumulating mutants exhibit lower growth rates and reduced plating efficiency compared to wild-type cells and white phytoene synthase mutants
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carotenoid profiles of wild-type and mutant E17 strains, overview
metabolism
the enzyme catalyzes the second step in carotenoid biosynthesis, the conversion of phytoene to zeta-carotene
metabolism
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the enzyme catalyzes the second step in carotenoid biosynthesis, the conversion of phytoene to zeta-carotene
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metabolism
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carotenoid profiles of wild-type and mutant E17 strains, overview
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the enzyme is involved in carotenoid biosynthesis
physiological function
the enzyme is involved in the biosynthesis of carotenoids
amino acid residue 144 is crutial to the activity of the PDS enzyme
additional information
expression of mutant CrPDS-L505F enhances the accumulation of carotenoids, overview
additional information
intragenic suppressors binding analysis and computational structure prediction of PDS, overview
additional information
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intragenic suppressors binding analysis and computational structure prediction of PDS, overview
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additional information
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expression of mutant CrPDS-L505F enhances the accumulation of carotenoids, overview
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additional information
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amino acid residue 144 is crutial to the activity of the PDS enzyme
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