Helicobacter pylori membrane protein (H. pylori OMP)

Helicobacter pylori membrane proteins are a heterogeneous group of proteins essential for the bacterium's ability to colonize and persist in the human gastric mucosa. This group includes outer membrane proteins (OMPs) such as adhesins (e.g., BabA, SabA), which mediate binding to host glycoconjugates, and porins (e.g., Hop proteins) that facilitate the diffusion of small molecules (PubMed: 21819461). These proteins are vital for maintaining structural integrity, acquiring nutrients, and defending against the acidic environment of the stomach through mechanisms like urea transport for the urease enzyme (PubMed: 10456913). In the context of disease, they are central to the inflammatory response and the delivery of virulence factors that lead to gastritis, peptic ulcers, and gastric cancer (PubMed: 25452551). As they are exposed on the bacterial surface, they serve as major targets for both the host immune system and pharmacological interventions, including traditional antibiotics and emerging vaccine candidates (PubMed: 30202473). Targeting these proteins aims to disrupt bacterial adhesion, metabolism, or structural integrity to eradicate the infection and prevent associated diseases.

Other names

Helicobacter pylori outer membrane proteinH. pylori surface proteinHelicobacter pylori cell wall proteinH. pylori OMP

Inhibition of cell wall synthesis via penicillin-binding proteins, disruption of protein synthesis by binding to the 50S ribosomal subunit, and interference with DNA integrity (StatPearls: NBK544281). Additionally, some agents disrupt the bacterial membrane or inhibit the urease-mediated acid resistance mechanism (PubMed: 10456913).