EC Number   |
General Information |
Reference |
|---|
    1.3.5.6 | evolution |
approximately 10% of known phytoene desaturases, as in Rhodobacter, produce neurosporene, whereas the rest produce lycopene. These two types of enzymes, although similar in function, have relatively low similarity, below 60%, in terms of nucleotide or amino acid sequence. Phytoene desaturase encoded by gene crtI is a neurosporene-producing enzyme |
712351 |
| 1.3.5.6 | metabolism |
carotene desaturation, an essential step in the carotenoid biosynthesis pathway, is catalyzed by two carotene desaturases, phytoene desaturase, PDS, and zeta-carotene desaturase, ZDS |
712989 |
| 1.3.5.6 | more |
Leu208, located in a highly hydrophobic membrane-integrated region, is important in substrate binding |
-, 711020 |
| 1.3.5.6 | metabolism |
phytoene desaturase CrtI from Rubrivivax gelatinosus catalyzes simultaneously a three- and four-step desaturation producing both neurosporene and lycopene. These carotenes are intermediates for the synthesis of spheroidene and spirilloxanthin, respectively |
-, 711020 |
| 1.3.5.6 | physiological function |
phytoene desaturase encoded by crtI catalyzes the desaturation of phytoene in the carotenoid biosynthesis pathway, approximately 10% of known phytoene desaturases, as in Rhodobacter, produce neurosporene, whereas the rest produce lycopene, mechanism controlling the product specificity, phytoene desaturase encoded by gene crtI is a neurosporene-producing enzyme, overview |
712351 |
| 1.3.5.6 | more |
the differential accumulation of carotenoids in red- and yellow-fleshed papaya varieties, being higher in the red-fleshed variant, might be partly explained by the transcriptional level of CpPDS, encoding phytoene desaturase, and CpZDS |
-, 716179 |
| 1.3.5.6 | metabolism |
the enzyme is important in carotenoid biosynthesis pathway in citrus fruits, overview |
-, 725182 |
| 1.3.5.6 | metabolism |
the expression of zeta-carotene desaturase paralleles plastid terminal oxidase (PTOX, quinol:oxygen oxidoreductase) and zeta-carotene desaturase. The three genes are expressed when carotinoid biosynthesis is enhanced during fruit ripening |
710300 |
| 1.3.5.6 | metabolism |
the expression of zeta-carotene desaturase paralleles plastid terminal oxidase (PTOX, quinol:oxygen oxidoreductase) and zeta-carotene desaturase. The three genes are expressed when carotinoid biosynthesis is enhanced during fruit ripening. Tomato ghost mutant with impaired plastid terminal oxidase accumulate phytoene in leaves and fruits |
710300 |
| 1.3.5.6 | metabolism |
the zeta-carotene desaturase is involved in the carotenogenic pathway, overview |
-, 716179 |
