Reaction catalyzed by brevianamide F prenyltransferase (deoxybrevianamide E-forming) (2.5.1.109)

		+			=			+
	dimethylallyl diphosphate	+		cyclo-L-Trp-L-Ala	=		diphosphate	+		cyclo-[2-(2-methylbut-3-en-2-yl)-L-Trp]-L-Ala