Tags: Enzyme.
In enzymology a D-aspartate ligase (EC 6.3.1.12) is an enzyme that catalyzes the chemical reactionATP + D-aspartate + [beta-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D- Ala)]n [beta-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-6-N-(beta-D-Asp)-L- Lys-D-Ala-D-Ala)]n + ADP + phosphateThe 4 substrates of this enzyme are ATP D-aspartate [[beta-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-]] and [[Ala)]n]] whereas its 4 products are [[beta-GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-6-N-(beta-D-Asp)-L-]] [[Lys-D-Ala-D-Ala)]n]] ADP and phosphate.This enzyme belongs to the family of ligases specifically those forming carbon-nitrogen bonds as acid-D-ammonia (or amine) ligases (amide synthases).