Reaction catalyzed by transmembrane protease serine 2 (3.4.21.122)

		+		H2O	=			+
	CH3-SO2-D-Arg-Pro-Arg-7-amido-4-methylcoumarin	+		H2O	=		CH3-SO2-D-Arg-Pro-Arg	+		7-amino-4-methylcoumarin