... Molecular cloning and characterization of isomultiflorenol synthase, a new triterpene synthase from Luffa cylindrica, involved in biosynthesis of bryonolic acid Hiroaki Hayashi1, Pengyu Huang1, ... 353–729 of G. glabra GgbAS1 b-amyrin synthase [6], was prepared byPCR using GgbAS1 as a template, Taq DNA polymerase(Takara Shuzo, Kyoto, Japan), the primers 50-GAAGCATATCCACTATGAAGATGA-30 and ... T., Shibuya, M. & Ebizuka, Y. (2001) Cloning and characterization of a cDNA encoding b-amyrin synthase involved in glycyrrhizin and soyasaponin biosynthesis in licorice. Biol. Pharm. Bull....