Diaminopimelinoyl-alanine endopeptidase. Has antibacterial activity. Inhibited by PMSF and p-chloromercuribenzoate. Unaffected by EDTA. Optimum pH is 8.0. Optimum temperature is 50-55 degrees Celsius. Retains 50% of its maximal activity after incubation at 52 degrees Celsius for 15 min. Monomer.