Reaction catalyzed by coagulation factor IXa (3.4.21.22)

		+		H2O	=			+
	(methylsulfonyl)-D-cyclohexylalanine-Gly-Arg-7-amido-4-methylcoumarin	+		H2O	=		(methylsulfonyl)-D-cyclohexylalanine-Gly-Arg	+		7-amino-4-methylcoumarin