Phytoene synthase (EC 2.5.1.32, prephytoene-diphosphate synthase, 15-cis-phytoene synthase, PSase, geranylgeranyl-diphosphate geranylgeranyltransferase) is a transferase enzyme involved in the biosynthesis of carotenoids.
It catalyzes the conversion of geranylgeranyl pyrophosphate to phytoene.
[1][2][3][4] This enzyme catalyses the following chemical reaction This enzyme requires Mn2+ for activity.
It belongs to squalene/phytoene synthase family of proteins.
This EC 2.5 enzyme-related article is a stub.