Biology:Phytoene desaturase (neurosporene-forming)
From HandWiki
| Phytoene desaturase (neurosporene-forming) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.3.99.28 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
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Phytoene desaturase (neurosporene-forming) (EC 1.3.99.28, 3-step phytoene desaturase, three-step phytoene desaturase, phytoene desaturase (ambiguous), CrtI (ambiguous)) is an enzyme with systematic name 15-cis-phytoene:acceptor oxidoreductase (neurosporene-forming).[1][2] This enzyme catalyses the following chemical reaction
- 15-cis-phytoene + 3 acceptor [math]\displaystyle{ \rightleftharpoons }[/math] all-trans-neurosporene + 3 reduced acceptor (overall reaction)
- (1a) 15-cis-phytoene + acceptor [math]\displaystyle{ \rightleftharpoons }[/math] all-trans-phytofluene + reduced acceptor
- (1b) all-trans-phytofluene + acceptor [math]\displaystyle{ \rightleftharpoons }[/math] all-trans-zeta-carotene + reduced acceptor
- (1c) all-trans-zeta-carotene + acceptor [math]\displaystyle{ \rightleftharpoons }[/math] all-trans-neurosporene + reduced acceptor
This enzyme is involved in carotenoid biosynthesis.
See also
- Phytoene desaturase (lycopene-forming)
- 15-Cis-phytoene desaturase
- Phytoene desaturase (zeta-carotene-forming)
- Phytoene desaturase (3,4-didehydrolycopene-forming)
References
- ↑ "Purification in an active state and properties of the 3-step phytoene desaturase from Rhodobacter capsulatus overexpressed in Escherichia coli". Journal of Biochemistry 119 (3): 559–64. March 1996. doi:10.1093/oxfordjournals.jbchem.a021278. PMID 8830054.
- ↑ "Alteration of product specificity of Rhodobacter sphaeroides phytoene desaturase by directed evolution". The Journal of Biological Chemistry 276 (44): 41161–4. November 2001. doi:10.1074/jbc.M105786200. PMID 11526111.
External links
- Phytoene+desaturase+(neurosporene-forming) at the US National Library of Medicine Medical Subject Headings (MeSH)
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