Phytoene desaturase (neurosporene-forming)
class of enzymes
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). This enzyme catalyses the following chemical reaction
15-cis-phytoene + 3 acceptor
⇌
{\displaystyle \rightleftharpoons }
all-trans-neurosporene + 3 reduced acceptor (overall reaction)
(1a) 15-cis-phytoene + acceptor
⇌
{\displaystyle \rightleftharpoons }
all-trans-phytofluene + reduced acceptor
(1b) all-trans-phytofluene + acceptor
⇌
{\displaystyle \rightleftharpoons }
all-trans-zeta-carotene + reduced acceptor
(1c) all-trans-zeta-carotene + acceptor
⇌
{\displaystyle \rightleftharpoons }
all-trans-neurosporene + reduced acceptor
This enzyme is involved in carotenoid biosynthesis.
“Phytoene desaturase (neurosporene-forming)” enters the record as class of enzymes. Crown Archives preserves that source wording while asking what Phytoene, desaturase and neurosporene-forming can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 26, 2023. The linked authority identifier is Q3260922. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Phytoene desaturase (neurosporene-forming)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.