[mass noun] A substance forming the cell walls of many bacteria, consisting of glycosaminoglycan chains interlinked with short peptides.
- ‘For instance, the cell walls of all bacteria contain the chemical peptidoglycan.’
- ‘The cell wall, which is relatively porous, consists of many polymer layers of peptidoglycan connected by amino acid bridges.’
- ‘This coincidence suggests that the D-amino acids originated in peptidoglycan of bacterial cell walls.’
- ‘It can attach and bind to cell walls and kill a cell by catalyzing the hydrolysis of cell wall peptidoglycan.’
- ‘They retain a ‘cell wall’ of peptidoglycan which ought to dispel any doubts about their bacterial origin.’