amino acid analysis of pure murein isolated from cells of thiobacillus versutus grown in complex medium revealed the typical constituents of most mureins from gram-negative cells , i.e . muramic acid , glucosamine , glutamic acid , alanine and diaminopimelic acid in molecular ratio of 0.58 : 0.79 : 1.0 : 1.76:1.07 , respectively .
C0002520
amino acid
C0001898
alanine