15-cis-phytoene + 5 A => all-trans-3,4-didehydrolycopene + 5 AH2
15-cis-phytoene + 5 a => all-trans-3,4-didehydrolycopene + 5 ah2
15-cis-phytoene + 5 A => all-trans-3,4-didehydrolycopene + 5 AH2
15-cis-phytoene + 5 a => all-trans-3,4-didehydrolycopene + 5 ah2