Cell wall synthesis proteins

Cell wall synthesis proteins in bacteria (chiefly penicillin-binding proteins and associated enzymes such as transglycosylases, transpeptidases, and the Mur family) synthesize and remodel the peptidoglycan layer, which is critical for maintaining cell structure and integrity, resistance to osmotic lysis, and supporting cell division. These proteins are the principal targets of several classes of antibiotics, notably β-lactams and glycopeptides. However, the term "cell wall synthesis proteins" is a non-specific grouping; for drug discovery or biomarker purposes, identification of the particular enzyme (e.g., PBP2, PBP3, MurA) is necessary. The term is too broad for most structured target databases and should be replaced with the specific protein (such as "Penicillin-binding protein 2a (PBP2a)") for actionable and unambiguous use in research and drug development.

Other names

cell wall synthesis enzymesbacterial cell wall biosynthesis proteinsPBPs (for penicillin-binding proteins)transglycosylasestranspeptidasesMur enzymes

Inhibition of transpeptidase/cross-linking activity (β-lactams) Inhibition of transglycosylase (glycopeptides) Blockade of precursor synthesis (fosfomycin, cycloserine)