Reaction catalyzed by papain (3.4.22.2)
+
+
H2O
=
+
+
CBZ-Gly 4-guanidinophenyl ester
+
L-Ser 4-nitroanilide
+
H2O
=
CBZ-Gly-L-Ser 4-nitroanilide
+
CBZ-Gly
+
4-guanidinophenol