Reaction catalyzed by cathepsin S (3.4.22.27)
+
H2O
=
+
Ac-His-Pro-Val-Lys-7-amido-3-carbamoylmethyl-4-methylcoumarin
+
H2O
=
Ac-His-Pro-Val-Lys
+
7-amino-3-carbamoylmethyl-4-methylcoumarin