Reaction catalyzed by protein-glutamine glutaminase (3.5.1.44)

		+		H2O	=			+		NH3
	tert-amyloxycarbonyl-L-Gln-L-Leu-Gly	+		H2O	=		tert-amyloxycarbonyl-L-Gln-L-Leu-Gly	+		NH3