Fusion proteins useful for modifying terpenes

A fusion protein comprising:

• (a) a terpene synthase (TS) comprising an amino acid sequence having (i) at least 90% identity with SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:11, SEQ ID NO:12, SEQ ID NO:13, SEQ ID NO:14, SEQ ID NO:15, or SEQ ID NO:16, and (ii) the amino acid sequence Asp-Asp-Xaa-Xaa-Asp (DDXXD) (SEQ ID NO:17) or the amino acid sequence Asp-Asp-Xaa-Xaa-Glu (DDXXE) (SEQ ID NO:18), (b) a peptide linker, and (c) a P450 enzyme comprising (i) an amino acid sequence having at least 90% identity with SEQ ID NO:19 or SEQ ID NO:20, and (ii) a CXG motif or EXXR motif.