Figure 1From: Analysis of virulence factors of Helicobacter pylori isolated from a Vietnamese populationAlignment of cagA pre-EPIYA region sequences from Vietnamese H. pylori. An 18-bp deletion, a 39-bp deletion, and no deletion were found at about 300 bp upstream of the first EPIYA region. The first EPIYA sequence is indicated in the clear square. Numbers were input from the first EPIYA motif.Back to article page