ID 6.3.1.12 DE D-aspartate ligase. AN Asl(fm). AN D-aspartic acid-activating enzyme. CA ATP + D-aspartate + (beta-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L- CA Lys-D-Ala-D-Ala))(n) = (beta-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu- CA 6-N-(beta-D-Asp)-L-Lys-D-Ala-D-Ala))(n) + ADP + phosphate. CC -!- Forms part of the peptidoglycan assembly pathway of Gram-positive CC bacteria grown in medium containing D-Asp. CC -!- Normally, the side chains the acylate the 6-amino group of the CC L-lysine residue contain L-Ala-L-Ala but these amino acids are CC replaced by D-Asp when D-Asp is included in the medium. CC -!- Hybrid chains containing L-Ala-D-Asp, L-Ala-L-Ala-D-Asp or D-Asp-L- CC Ala are not formed. CC -!- Highly specific for D-aspartate, as L-aspartate, D-glutamate, CC D-alanine, D-iso-asparagine and D-malic acid are not substrates. CC -!- In Enterococcus faecium, the substrate D-aspartate is produced by CC EC 5.1.1.13. PR PROSITE; PDOC50975; //