Journal
ANNUAL REVIEW OF BIOCHEMISTRY, VOL 81
Volume 81, Issue -, Pages 451-478Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-biochem-061809-112742
Keywords
murein; cell wall; glycosyltransferase; transpeptidation; antibiotic
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Funding
- Canadian Institutes of Health Research Funding Source: Medline
- Howard Hughes Medical Institute Funding Source: Medline
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The peptidoglycan biosynthetic pathway is a critical process in the bacterial cell and is exploited as a target for the design of antibiotics. This pathway culminates in the production of the peptidoglycan layer, which is composed of polymerized glycan chains with cross-linked peptide substituents. This layer forms the major structural component of the protective barrier known as the cell wall. Disruption in the assembly of the peptidoglycan layer causes a weakened cell wall and subsequent bacterial lysis. With bacteria responsible for both properly functioning human health (probiotic strains) and potentially serious illness (pathogenic strains), a delicate balance is necessary during clinical intervention. Recent research has furthered our understanding of the precise molecular structures, mechanisms of action, and functional interactions involved in peptidoglycan biosynthesis. This research is helping guide our understanding of how to capitalize on peptidoglycan-based therapeutics and, at a more fundamental level, of the complex machinery that creates this critical barrier for bacterial survival.
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