Reaction catalyzed by beta-glucosidase (3.2.1.21), Sulfolobus solfataricus beta-glycosidase (3.2.1.B26)

		+	2	H2O	=			+	2
	4-nitrophenyl beta-cellobioside	+		2 H2O	=		4-nitrophenol	+		2 beta-D-glucose