Reaction catalyzed by Muramoyltetrapeptide carboxypeptidase (3.4.17.13)
+
H2O
=
+
N-acetylmuramoyl-Ala-D-Glu-Dap-D-Ala
+
H2O
=
N-acetylmuramoyl-Ala-D-Glu-Dap
+
D-Ala