ID 5.4.99.56 DE tirucalladienol synthase. CA (S)-2,3-epoxysqualene = tirucalladienol. CC -!- The product from Arabidopsis thaliana is 85% tirucalla-7,24-dien- CC 3beta-ol with trace amounts of other triterpenoids. DR Q9LVY2, PEN3_ARATH ; //