"The cellwallisoneofthemostdefiningcharacteristicsofbacteria.Itplaysacrucialrole in cellintegritywhileregulatingthepassivetransportofmanynutrientsandproteins.The main culpritbehindthecellwallpropertiesisthepeptidoglycanpolymer.Itiscomposed of abackboneoftwoalternatingsugars(NAGandNAM)andapentapeptidelinkedto everyNAMsugar.Thispentapeptideiscapableofcross-linkingwithotherpeptidesto create largemeshes.(...)"