Biology:9,9'-Dicis-zeta-carotene desaturase
From HandWiki
Short description: Class of enzymes
| 9,9'-dicis-zeta-carotene desaturase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.3.5.6 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
9,9'-dicis-zeta-carotene desaturase (EC 1.3.5.6, zeta-carotene desaturase, ZDS) is an enzyme with systematic name 9,9'-dicis-zeta-corotene:quinone oxidoreductase.[1][2][3][4] This enzyme catalyses the following chemical reaction
- 9,9'-dicis-zeta-carotene + 2 quinone [math]\displaystyle{ \rightleftharpoons }[/math] 7,9,7',9'-tetracis-lycopene + 2 quinol (overall reaction)
- (1a) 9,9'-dicis-zeta-carotene + a quinone [math]\displaystyle{ \rightleftharpoons }[/math] 7,9,9'-tricis-neurosporene + a quinol
- (1b) 7,9,9'-tricis-neurosporene + a quinone [math]\displaystyle{ \rightleftharpoons }[/math] 7,9,7',9'-tetracis-lycopene + a quinol
This enzyme is involved in carotenoid biosynthesis in plants and cyanobacteria.
References
- ↑ "Biochemical characterization of purified zeta-carotene desaturase from Anabaena PCC 7120 after expression in Escherichia coli". European Journal of Biochemistry 236 (1): 115–20. February 1996. doi:10.1111/j.1432-1033.1996.00115.x. PMID 8617254.
- ↑ "A plastid terminal oxidase associated with carotenoid desaturation during chromoplast differentiation". Plant Physiology 123 (4): 1427–36. August 2000. doi:10.1104/pp.123.4.1427. PMID 10938359.
- ↑ "Catalytic properties of an expressed and purified higher plant type zeta-carotene desaturase from Capsicum annuum". European Journal of Biochemistry 265 (1): 376–83. October 1999. doi:10.1046/j.1432-1327.1999.00746.x. PMID 10491195.
- ↑ "zeta-Carotene cis isomers as products and substrates in the plant poly-cis carotenoid biosynthetic pathway to lycopene". Planta 220 (5): 785–93. March 2005. doi:10.1007/s00425-004-1395-2. PMID 15503129.
External links
- 9,9'-dicis-zeta-carotene+desaturase at the US National Library of Medicine Medical Subject Headings (MeSH)
 |  |
