Microbial peptidoglycan biosynthesis enzyme (null)

Microbial peptidoglycan biosynthesis enzymes encompass a class of bacterial enzymes responsible for forming and remodeling peptidoglycan—the essential structural polymer in the cell wall. These enzymes include glycosyltransferases, transpeptidases, ligases (Mur ligases), and hydrolases (autolysins), each contributing specific steps from precursor assembly to polymerization and cross-linking. The pathway is highly conserved in bacteria but absent in mammalian cells, making these enzymes prime targets for antibiotics such as beta-lactams, glycopeptides, and fosfomycin, which disrupt peptidoglycan integrity and result in bacterial cell death. Drug resistance and specificity of antimicrobial agents remain central clinical challenges in the therapeutic targeting of this system.

Other names

Peptidoglycan biosynthetic enzymesCell wall biosynthesis enzymesPenicillin-binding proteins (PBPs; specific subgroup)Mur ligases (MurC, MurD, MurE, MurF)Glycosyltransferases, transpeptidasesMicrobial cell wall enzymesPeptidoglycan assembly enzymes

Inhibition of transpeptidation by binding transpeptidases (PBPs), blocking cross-linking (beta-lactams) - Inhibition of glycosyltransferases, blocking glycan chain elongation (vancomycin, telavancin) - Inhibition of precursor synthesis (e.g., MurA by fosfomycin, Mur ligases by D-cycloserine) - Inhibition of lipid cycle (bacitracin)