Figure 11:
A) Active site of SpCPS showing arrangement of the highly conserved DxDD catalytic acid motif and alternative His-Asp dyad shown here to directly act as the catalytic base. B) GC-MS chromatograms of dephosphorylated class II products from wild-type or mutant SpCPS, as indicated (1’, geranylgeraniol; 2’, ent-copalol; 3’, 8β-hydroxy-ent-copalol).