The association of Helicobacter pylori CagA EPIYA motifs and vacA genotypes with homologous recombination repair markers during the gastric precancerous cascade.

H. pylori were positively correlated with the DNA damage marker in precancerous lesions, but were negatively correlated with the key homologous recombination repair proteins, which may be due to the specific CagA EPIYA motifs and vacA genotypes.