Muramoyltetrapeptide carboxypeptidase (EC3.4.17.13, carboxypeptidase IIW, carboxypeptidase II, lysyl-D-alanine carboxypeptidase, L-lysyl-D-alanine carboxypeptidase, LD-carboxypeptidase) is an enzyme.[1][2][3] This enzyme catalyses the following chemical reaction
Hydrolysis of the bond: N-acetyl-D-glucosaminyl-N-acetylmuramoyl-L-Ala-D-glutamyl-6-carboxy-L-lysyl--D-alanine
^DasGupta H, Fan DP (July 1979). "Purification and characterization of a carboxypeptidase-transpeptidase of Bacillus megaterium acting on the tetrapeptide moiety of the peptidoglycan". The Journal of Biological Chemistry. 254 (13): 5672–83. PMID109439.
^Metz R, Henning S, Hammes WP (March 1986). "LD-carboxypeptidase activity in Escherichia coli. II. Isolation, purification and characterization of the enzyme from E. coli K 12". Archives of Microbiology. 144 (2): 181–6. doi:10.1007/bf00414732. PMID3521530.