Staphylococcus aureus cell surface receptors and cell wall components (S. aureus cell wall components)

Staphylococcus aureus cell surface receptors and cell wall components comprise a complex assembly of peptidoglycan, teichoic acids, and various surface-anchored proteins known as MSCRAMMs (Microbial Surface Components Recognizing Adhesive Matrix Molecules). These structures are essential for maintaining bacterial structural integrity, facilitating adherence to host tissues, and mediating immune evasion strategies such as the binding of host immunoglobulins by Protein A [1][2]. In the context of infection, these components play a critical role in the pathogenesis of conditions ranging from minor skin infections to life-threatening sepsis and endocarditis [3]. Many of the most clinically significant antibiotics, including beta-lactams and glycopeptides, exert their bactericidal effects by targeting the synthesis or assembly of these cell wall elements [4]. For instance, glycopeptides like vancomycin bind to the D-alanyl-D-alanine terminus of peptidoglycan precursors, preventing cross-linking and leading to cell lysis [5]. Furthermore, wall teichoic acids are increasingly recognized as vital for biofilm formation and the regulation of autolytic enzymes [2]. Understanding these targets is vital for developing new therapeutics to combat multi-drug resistant strains like Methicillin-resistant S. aureus (MRSA) [6]. [1] Foster, T. J., et al. (2014). Adhesion, invasion and evasion: the many roles of the surface proteins of Staphylococcus aureus. Nature Reviews Microbiology. [2] Swoboda, J. G., et al. (2010). Wall Teichoic Acid Function, Biosynthesis, and Inhibition. ChemBioChem. [3] Lowy, F. D. (1998). Staphylococcus aureus Infections. New England Journal of Medicine. [4] Scheffers, D. J., & Pinho, M. G. (2005). Bacterial Cell Wall Synthesis: New Insights from Localization Studies. Microbiology and Molecular Biology Reviews. [5] Courvalin, P. (2006). Vancomycin Resistance in Gram-Positive Cocci. Clinical Infectious Diseases. [6] Peacock, S. J., & Paterson, G. K. (2015). Mechanisms of Methicillin Resistance in Staphylococcus aureus. Annual Review of Biochemistry.

Other names

S. aureus surface proteinsMSCRAMMsCell wall-associated proteinsPeptidoglycan-teichoic acid complexStaphylococcal adhesins

Inhibition of peptidoglycan synthesis through the targeting of transpeptidases (PBPs), transglycosylases, or the D-Ala-D-Ala terminus of peptidoglycan precursors.