4.2.3.B67	GrTPS2, phylogenetic analysis, quantitative real-time PCR expression analysis, recombinant expression of a truncated sequence of GrTPS2 (lacking the first 47 N-terminal amino acids representing the plastidial transit peptide) as His-tagged protein in Escherichia coli strain BL21DE-C41, recombinant expression of enzyme GrTPS2 in Nicotiana benthamiana via Agrobacterium tumefaciens transfection method, coexpression with the class I diTPSs GrTPS4 (ent-kaurene synthase) or GrTPS6 (manoyl oxide synthase) in Nicotiana benthamiana yielding both no detectable products