Reaction catalyzed by PHEX peptidase (3.4.24.B15)

		+		H2O	=			+
	o-aminobenzoyl-IPSDFEGQ-N-(2,4-dinitrophenyl)ethylene diamine	+		H2O	=		o-aminobenzoyl-IPS	+		DFEGQ-N-(2,4-dinitrophenyl)ethylene diamine