N-acetyl-D-muramate + L-alanine => N-acetyl-D-muramoyl-L-alanine + H2O
n-acetyl-d-muramate + l-alanine => n-acetyl-d-muramoyl-l-alanine + h2o
N-acetyl-D-muramate + L-alanine => N-acetyl-D-muramoyl-L-alanine + H2O
n-acetyl-d-muramate + l-alanine => n-acetyl-d-muramoyl-l-alanine + h2o