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alternative route to squalene
carotenoid biosynthesis in higher plants and cyanobacteria
carotenoid biosynthesis in other organisms
C30 carotenoid biosynthesis
farnesyl and geranylgeranyl diphosphate biosynthesis
triterpenoid biosynthesis
EC 2.5.1.21 squalene synthase
EC 2.5.1.32 15-cis-phytoene synthase
EC 2.5.1.96 4,4'-diapophytoene synthase
EC 2.5.1.148 lycopaoctaene synthase