Reaction catalyzed by mannosyl-glycoprotein endo-beta-N-acetylglucosaminidase (3.2.1.96)

		+		H2O	=			+
	(Man)5(GlcNAc)2-pyridylamino	+		H2O	=		(Man)5(GlcNAc)	+		2-(acetylamino)-2-deoxy-N-pyridin-2-yl-beta-D-glucopyranosylamine