Function
Amino-acid racemase able to utilize a broad range of substrates. Preferentially catalyzes the epimerization of LL-diaminopimelate, as well as the racemization of D-lysine, L-arginine, L-ornithine, L-lysine and D-arginine. Has lower activity against D-ornithine, L-histidine, L-alanine, L-tyrosine, L-phenylalanine, L-serine, L-glutamine, L-methionine, L-asparagine and L-homoserine. Has weak activity against L-norleucine, L-aminobutyric acid and L-norvaline. Has no activity toward nine L-amino acids (Thr, Glu, Asp, Val, Leu, Ile, Trp, Cit and Aad) (PubMed:28894939). D-amino acids might be used as components of peptidoglycan and/or be involved in peptidoglycan metabolism and remodeling (PubMed:8491712, PubMed:28894939).