Trihydroxypterocarpan dimethylallyltransferase explained

Trihydroxypterocarpan dimethylallyltransferase
Ec Number:	2.5.1.36
Cas Number:	70851-94-4

Trihydroxypterocarpan dimethylallyltransferase (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 name dimethylallyl-diphosphate:(6aS,11aS)-3,6a,9-trihydroxypterocarpan dimethylallyltransferase.^{[1] [2]} This enzyme catalyses the following chemical reaction

(1) dimethylallyl diphosphate + (6aS,11aS)-3,6a,9-trihydroxypterocarpan

\rightleftharpoons diphosphate + 2-dimethylallyl-(6aS,11aS)-3,6a,9-trihydroxypterocarpan

(2) dimethylallyl diphosphate + (6aS,11aS)-3,6a,9-trihydroxypterocarpan

\rightleftharpoons diphosphate + 4-dimethylallyl-(6aS,11aS)-3,6a,9-trihydroxypterocarpan

Part of the glyceollin biosynthesis system in soy bean.

Notes and References

1. Leube J, Grisebach H . Further studies on induction of enzymes of phytoalexin synthesis in soybean and cultured soybean cells . Z. Naturforsch. C: Biosci. . 1983 . 38 . 730–735 .
2. Zähringer U, Schaller E, Grisebach H . 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 . 1981 . 36 . 234–241 .