Article
Outer inflammatory protein a (OipA) of Helicobacter pylori is regulated by host cell contact and mediates CagA translocation and interleukin-8 response only in the presence of a functional cag pathogenicity island type IV secretion system
11 Oct 2017
Abstract excerpt
OipA is a phase-variable virulence factor of Helicobacter pylori. Mutations in oipA to turn the gene phase on in a cag pathogenicity island (PAI)-negative strain of H. pylori (J68) or phase off in a cag PAI-positive strain (26695) demonstrated that phase on oipA alleles in both strains had both increased oipA mRNA and human gastric adenocarcinoma (AGS) cell adherence compared to isogenic oipA phase off mutants....
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