7-dimethylallyltryptophan synthase (, 7-DMATS) is an enzyme with systematic name dimethylallyl-diphosphate:L-tryptophan 7-dimethylallyltransferase. This enzyme catalyses the following chemical reaction:
This enzyme is more flexible towards the aromatic substrate than EC 2.5.1.34 (4-dimethylallyltryptophan synthase).