Unlike EC?4.2.3.29,?ent-sandaracopimaradiene synthase, which can produce both?ent-sandaracopimaradiene and?ent-pimara-8(14),15-diene, this diterpene cyclase produces only?ent-pimara-8(14),15-diene.?ent-Pimara-8(14),15-diene is not a precursor in the biosynthesis of either gibberellins or phytoalexins.