Helicobacter pylori proteins and adhesins (H. pylori proteins)

Helicobacter pylori proteins and adhesins represent a collective group of virulence factors and metabolic enzymes that enable the bacterium to survive and colonize the human gastric mucosa. A central component is Urease, an enzyme that catalyzes the hydrolysis of urea into ammonia and carbon dioxide, effectively neutralizing local gastric acid to create a habitable niche (StatPearls, 2023). Adhesins such as Blood group antigen-binding adhesin (BabA) and Sialic acid-binding adhesin (SabA) facilitate persistent colonization by binding to specific receptors on gastric epithelial cells (PubMed, 2021). Pathogenic strains often express Cytotoxin-associated gene A (CagA) and Vacuolating cytotoxin A (VacA), which manipulate host cell signaling, induce inflammation, and contribute to oncogenesis (UniProt, 2024). Therapeutic strategies primarily involve combination antibiotic regimens (e.g., clarithromycin, amoxicillin) that target bacterial protein synthesis and cell wall integrity, alongside proton pump inhibitors to enhance drug efficacy (NIH, 2023). These proteins are critical targets for both eradication of infection and the prevention of gastric cancer and peptic ulcers.

Other names

H. pylori virulence factorsHelicobacter pylori enzymesH. pylori adhesinsGastric bacterial proteins

Inhibition of bacterial cell wall synthesis, inhibition of protein synthesis (50S/30S ribosomal subunits), inhibition of DNA gyrase, and inhibition of urease activity to prevent acid neutralization.