Reaction catalyzed by 3-geranyl-3-[(Z)-2-isocyanoethenyl]indole synthase (2.5.1.146)

		+			=			+
	geranyl diphosphate	+		3-[(Z)-2-isocyanoethenyl]-1H-indole	=		3-geranyl-3-[(Z)-2-isocyanoethenyl]-1H-indole	+		diphosphate