Which of the following amino acid is present only in bacteria and BGA

Options

A. Glutamic acid
B. Diaminopimetic acid
C. Glycine
D. Tyrosine

Answer

B

Explanation

In E. coli (Gram –ve bacteria) there is diaminopimelic acid. It is found in the peptide linkage of N – acetyl glucosoamine and N –acetyl muramio chain that make up the cell wall of gram negative bacteria.