all-trans-lycopene + 4 AH2 => 15-cis-phytoene + 4 A
all-trans-lycopene + 4 ah2 => 15-cis-phytoene + 4 a
all-trans-lycopene + 4 AH2 => 15-cis-phytoene + 4 A
all-trans-lycopene + 4 ah2 => 15-cis-phytoene + 4 a