- Source: All-trans-phytoene synthase
All-trans-phytoene synthase (EC 2.5.1.99, prephytoene-diphosphate synthase, phytoene synthetase, PSase, geranylgeranyl-diphosphate geranylgeranyltransferase, 15-trans-phytoene synthase) is an enzyme with systematic name geranylgeranyl-diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase (all-trans-phytoene forming). This enzyme catalyses the following chemical reaction
2 geranylgeranyl diphosphate
⇌
{\displaystyle \rightleftharpoons }
all-trans-phytoene + 2 diphosphate (overall reaction)
(1a) 2 geranylgeranyl diphosphate
⇌
{\displaystyle \rightleftharpoons }
diphosphate + prephytoene diphosphate
(1b) prephytoene diphosphate
⇌
{\displaystyle \rightleftharpoons }
all-trans-phytoene + diphosphate
This enzyme requires Mn2+ for activity.
References
External links
All-trans-phytoene+synthase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
Kata Kunci Pencarian:
- All-trans-phytoene synthase
- Prephytoene-diphosphate synthase
- Phytoene synthase
- PSase
- Geranylgeranyl-diphosphate geranylgeranyltransferase
- Astaxanthin
- Carotenoid
- CRT (genetics)
- Lycopene
- Triterpene
