Helicobacter pylori membrane and intracellular enzymes (N/A)

Helicobacter pylori (H. pylori) is a Gram-negative, microaerophilic bacterium that colonizes the gastric mucosa of the human stomach, where it is a primary cause of chronic gastritis, peptic ulcers, and gastric adenocarcinoma (NIH, 2023). The bacterium's ability to survive the acidic environment and establish infection relies on a variety of membrane-bound and intracellular enzymes. A critical enzyme is urease, which catalyzes the hydrolysis of urea into ammonia and carbon dioxide, effectively neutralizing local gastric acid (StatPearls, 2023). Other essential targets include penicillin-binding proteins involved in cell wall synthesis, the 30S and 50S ribosomal subunits responsible for protein translation, and DNA gyrase, which is vital for DNA replication (PubMed, 2022). Therapeutic strategies typically involve a combination of antibiotics that target these specific bacterial components alongside acid-suppressing agents to eradicate the pathogen and promote mucosal healing (WHO, 2021). The complexity of targeting multiple enzymes simultaneously is a hallmark of H. pylori eradication therapy, though rising antibiotic resistance poses a significant challenge to clinical success (Nature Reviews Microbiology, 2022).

Other names

H. pylori enzymesHelicobacter pylori proteome targetsH. pylori metabolic and structural proteins

Inhibition of cell wall synthesis via penicillin-binding proteins, inhibition of protein synthesis via 30S or 50S ribosomal subunits, induction of DNA damage through reductive activation, and inhibition of DNA gyrase to prevent replication.