“Phytoene desaturase (3,4-didehydrolycopene-forming)”的意思、由来-开放百科全书

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Phytoene desaturase (3,4-didehydrolycopene-forming)

释义

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{{Infobox enzyme
| Name = Phytoene desaturase (3,4-didehydrolycopene-forming)
| EC_number = 1.3.99.30
| CAS_number =
| IUBMB_EC_number = 1/3/99/30
| GO_code =
| image =
| width =
| caption =
}}Phytoene desaturase (3,4-didehydrolycopene-forming) ({{EC number|1.3.99.30}}, 5-step phytoene desaturase, five-step phytoene desaturase, phytoene desaturase (ambiguous), Al-1) is an enzyme with systematic name 15-cis-phytoene:acceptor oxidoreductase (3,4-didehydrolycopene-forming).^[1]^[2] This enzyme catalyses the following chemical reaction

15-cis-phytoene + 5 acceptor all-trans-3,4-didehydrolycopene + 5 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

(1e) all-trans-lycopene + acceptor all-trans-3,4-didehydrolycopene + reduced acceptor

This enzyme is involved in carotenoid biosynthesis.

References

1. ^{{cite journal | vauthors = Hausmann A, Sandmann G | title = A single five-step desaturase is involved in the carotenoid biosynthesis pathway to beta-carotene and torulene in Neurospora crassa | journal = Fungal Genetics and Biology | volume = 30 | issue = 2 | pages = 147–53 | date = July 2000 | pmid = 11017770 | doi = 10.1006/fgbi.2000.1212 }}
2. ^{{cite journal | vauthors = Estrada AF, Maier D, Scherzinger D, Avalos J, Al-Babili S | title = Novel apocarotenoid intermediates in Neurospora crassa mutants imply a new biosynthetic reaction sequence leading to neurosporaxanthin formation | journal = Fungal Genetics and Biology | volume = 45 | issue = 11 | pages = 1497–505 | date = November 2008 | pmid = 18812228 | doi = 10.1016/j.fgb.2008.09.001 }}

External links

{{MeshName|Phytoene+desaturase+(3,4-didehydrolycopene-forming)}}

1 : EC 1.3.99

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References

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