Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Arrangement of glycan chains in the peptidoglycan layer and the schematic structure of peptidoglycan. CM, cytoplasmic membrane; G, N-acetylglucosamine; M, N-acetylmuramic acid; OM, outer membrane; PG, peptidoglycan. Modified from reference 122 with permission of the publisher.
