D-Alanine—D-serine ligase (, VanC, VanE, VanG) is an enzyme with systematic name D-alanine:D-serine ligase (ADP-forming). This enzyme catalyses the following chemical reaction
D-alanine + D-serine + ATP D-alanyl-D-serine + ADP + phosphate
The product of this enzyme, D-alanyl-D-serine, can be incorporated into the peptidoglycan pentapeptide instead of the usual D-alanyl-D-alanine dipeptide.
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