Tags: Enzyme.
All-trans-phytoene synthase (EC 2.5.1.99 prephytoene-diphosphate synthase phytoene synthetase PSase geranylgeranyl-diphosphate geranylgeranyltransferase 15-trans-phytoene synthase) is an enzyme with system name geranylgeranyl-diphosphate:geranylgeranyl-diphosphate geranylgeranyltransferase (all-trans-phytoene forming).