Reaction catalyzed by beta-glucosidase (3.2.1.21), beta-galactosidase (3.2.1.23), Sulfolobus solfataricus beta-glycosidase (3.2.1.B26), glycosylceramidase (3.2.1.62)

		+		H2O	=			+
	2-nitrophenyl beta-D-galactopyranoside	+		H2O	=		2-nitrophenol	+		beta-D-galactose