Helicobacter pylori cell wall and membrane

Helicobacter pylori cell wall and membrane constitute the outer structural layers of the Gram-negative bacterium H. pylori, a common gastric pathogen. The cell wall is primarily made of peptidoglycan (PG), a mesh-like polymer of alternating N-acetylglucosamine and N-acetylmuramic acid, crosslinked by peptide stems. This structure imparts the helical shape to the bacterium and resists the high osmotic pressure of the stomach environment[1][2][3]. The cell wall and associated cytoskeletal proteins (e.g., CcmA, MreB, Csd proteins) regulate cell morphology and adaptation to its niche[1][3][4][6]. As a Gram-negative bacterium, H. pylori additionally has an outer membrane containing unique lipids and proteins, separated from the inner (plasma) membrane by a periplasmic space. The cell envelope facilitates motility (via flagella insertion and assembly), host interaction, and antibiotic susceptibility[2][5][6]. The cell wall and membrane are not a single protein or canonical drug target, but instead a structural and functional complex targeted by multiple antibiotics (e.g., β-lactams affecting PG synthesis, bismuth compounds disrupting membranes). Because of this, Helicobacter pylori cell wall and membrane is an unorthodox target name: drug targets are typically specific molecules (enzymes, receptors) rather than entire structural complexes, so using this as a therapeutic "target" is non-standard and may yield ambiguous or incomplete information[2][6]. Note: - There is a correctness issue: The term “Helicobacter pylori cell wall/membrane” does not designate a single, discrete molecular target but encompasses a multi-component cell envelope. Thus, for structured target mapping purposes, this is not a canonical drug target name and is considered incorrect as a standard target, although the cell wall and membrane are key antibiotic targets in clinical practice[6]. - If a more precise target is needed, consider specifying particular proteins or enzymes, such as penicillin binding proteins (PBPs) for peptidoglycan synthesis, or outer membrane proteins.

Other names

H. pylori cell envelopeH. pylori peptidoglycanH. pylori outer membraneH. pylori inner membrane

Inhibition of peptidoglycan biosynthesis (β-lactams and related drugs), Disruption of membrane integrity (bismuth, metronidazole)