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Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
Metabolic Modeling Tutorial
discounted EARLY registration ends Dec 31, 2014
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MetaCyc Enzyme: 15-cis-phytoene desaturase

Gene: PDS Accession Number: AT4G14210 (MetaCyc)

Synonyms: AT4G14210

Species: Arabidopsis thaliana col

Subunit composition of 15-cis-phytoene desaturase = [PDS]
         phytoene desaturase subunit = PDS

Summary:
The enzyme phytoene desaturase (PYD) from Arabidopsis thaliana was expressed in Escherichia coli and its function demonstrated [Bartley99].

Unification Links: Entrez-gene:PDS3 , TAIR:AT4G14210

Gene-Reaction Schematic: ?


Enzymatic reaction of: 15,9'-di-cis-phytofluene desaturase (15-cis-phytoene desaturase)

15,9'-di-cis-phytofluene + a plastoquinone <=> 9,15,9'-tri-cis-ζ-carotene + a plastoquinol

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.

The reaction is favored in the direction shown.

In Pathways: superpathway of carotenoid biosynthesis , trans-lycopene biosynthesis II (plants)


Enzymatic reaction of: 15-cis-phytoene desaturase

15-cis-phytoene + a plastoquinone <=> 15,9'-di-cis-phytofluene + a plastoquinol

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.

The reaction is favored in the direction shown.

In Pathways: superpathway of carotenoid biosynthesis , trans-lycopene biosynthesis II (plants)


Enzymatic reaction of: phytoene desaturase

Synonyms: phytoene dehydrogenase

EC Number: 1.3.5.5

15-cis-phytoene + 2 a plastoquinone <=> 9,15,9'-tri-cis-ζ-carotene + 2 a plastoquinol

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.

Reversibility of this reaction is unspecified.

In Pathways: superpathway of carotenoid biosynthesis , trans-lycopene biosynthesis II (plants)


References

Bartley99: Bartley GE, Scolnik PA, Beyer P (1999). "Two Arabidopsis thaliana carotene desaturases, phytoene desaturase and zeta-carotene desaturase, expressed in Escherichia coli, catalyze a poly-cis pathway to yield pro-lycopene." Eur J Biochem 1999;259(1-2);396-403. PMID: 9914519


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
Page generated by SRI International Pathway Tools version 18.5 on Tue Nov 25, 2014, BIOCYC13A.