Which of the Following Drugs Target Peptidoglycan

Question

Which of the following drugs target peptidoglycan?
A)penicillin
B)cephalosporin
C)vancomycin
D)bacitracin
E)All of the choices are correct.

Accepted Answer

All of the choices target peptidoglycan. Penicillin and cephalosporin both inhibit the formation of the peptidoglycan cross-linking, while vancomycin binds to the D-alanyl-D-alanine terminus preventing the peptidoglycan subunits to join while bacitracin blocks the recycling of a lipid carrier used in peptidoglycan synthesis.