Phytoene desaturase (lycopene-forming)
Phytoene desaturase (lycopene-forming) | |||||||||
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Identifiers | |||||||||
EC number | 1.3.99.31 | ||||||||
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 (lycopene-forming) (EC 1.3.99.31, 4-step phytoene desaturase, four-step phytoene desaturase, phytoene desaturase (ambiguous), CrtI (ambiguous)) is an enzyme with systematic name 15-cis-phytoene:acceptor oxidoreductase (lycopene-forming).[1] This enzyme catalyses the following chemical reaction
- 15-cis-phytoene + 4 acceptor all-trans-lycopene + 4 reduced acceptor (overall reaction)
- (1a) 15-cis-phytoene + acceptor all-trans-phytofluene + reduced acceptor
- (1b) all-trans-phytofluene + acceptor all-trans-zeta-carotene + reduced acceptor
- (1c) all-trans-zeta-carotene + acceptor all-trans-neurosporene + reduced acceptor:
- (1d) all-trans-neurosporene + acceptor all-trans-lycopene + reduced acceptor
This enzyme is involved in carotenoid biosynthesis.
References
External links
- Phytoene desaturase (lycopene-forming) at the US National Library of Medicine Medical Subject Headings (MeSH)
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