D-aspartate + a carboxylate => an N-acyl-D-aspartate + H2O
d-aspartate + a carboxylate => an n-acyl-d-aspartate + h2o
D-aspartate + a carboxylate => an N-acyl-D-aspartate + H2O
d-aspartate + a carboxylate => an n-acyl-d-aspartate + h2o