Reaction catalyzed by hexachlorocyclohexane dehydrochlorinase (4.5.1.B1)

		=			+		HCl
	(1R,2R,3S,4S,5S,6S)-1,2,3,4,5,6-hexachlorocyclohexane	=		1,3,4,5,6-pentachlorocyclohex-1-ene	+		HCl