Trihydroxypterocarpan dimethylallyltransferase (EC184.108.40.206, glyceollin synthase, dimethylallylpyrophosphate:3,6a,9-trihydroxypterocarpan dimethylallyltransferase, dimethylallylpyrophosphate:trihydroxypterocarpan dimethylallyl transferase, dimethylallyl-diphosphate:(6aS,11aS)-3,6a,9-trihydroxypterocarpan dimethyltransferase) is an enzyme with systematic namedimethylallyl-diphosphate:(6aS,11aS)-3,6a,9-trihydroxypterocarpan dimethylallyltransferase. This enzyme catalyses the following chemical reaction
^Leube, J.; Grisebach, H. (1983). "Further studies on induction of enzymes of phytoalexin synthesis in soybean and cultured soybean cells". Z. Naturforsch. C: Biosci. 38: 730–735.
^Zähringer, U.; Schaller, E.; Grisebach, H. (1981). "Induction of phytoalexin synthesis in soybean. Structure and reactions of naturally occurring and enzymatically prepared prenylated pterocarpans from elicitor-treated cotyledons and cell cultures of soybean". Z. Naturforsch. C. 36: 234–241.