in several of the strains the amino acid and amino sugar composition of the murein was muramic acid ( mur ) , glucosamine ( glcnh ( 2 ) ) , d-glu , l-lys , l-thr , and ala in a molar ratio of 1:1:1:1:1:4 or 5 , and in several other strains it was mur , glcnh ( 2 ) , d-glu , l-lys , l-thr , ala , and l-ser in a molar ratio of 1:1:1:1:1:3:1 .
C0002520
amino acid
C0061472
glu