Reaction catalyzed by tirucalladienol synthase (5.4.99.56)

		=			+			+
	(3S)-oxidosqualene	=		tirucalla-7,24-dien-3beta-ol	+		isotirucallol	+		(1S,4S,8beta,9beta,13alpha,14beta,17alpha,20S)-9,10,14-trimethyl-4,9-cyclo-9,10-secocholesta-5,24-dien-1-ol