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crtQ | Zeta-carotene desaturase precursor; Catalyzes the conversion of zeta-carotene to lycopene via the intermediary of neurosporene. It carries out two consecutive desaturations (introduction of double bonds) at positions C-7 and C-7' (By similarity). (489 aa) | ||||
sll0033 | ORF_ID:sll0033; unknown protein. (501 aa) | ||||
pds | Phytoene desaturase; This enzyme converts phytoene into zeta-carotene via the intermediary of phytofluene by the symmetrical introduction of two double bonds at the C-11 and C-11' positions of phytoene. (472 aa) | ||||
pys | Phytoene synthase; Involved in the biosynthesis of carotenoids. Catalyzes the condensation of two molecules of geranylgeranyl diphosphate (GGPP) to give prephytoene diphosphate (PPPP) and the subsequent rearrangement of the cyclopropylcarbinyl intermediate to yield 15-cis-phytoene. (337 aa) |