Figure 2From: The EPIYA-ABCC motif pattern in CagA of Helicobacter pyloriis associated with peptic ulcer and gastric cancer in Mexican population Electrophoresis of representative samples with different CagA EPIYA patterns. DNA from representative clinical samples from cagA-positive H. pylori patients (E, F, G, H) was amplified by EPIYA motif-specific PCR. The PCR products were analyzed on a 1.5% agarose gel. Column 1: 100 bp MW marker; E (columns 2–4) EPIYA-ABC; F (columns 5–7) EPIYA-ABCC; G (columns 11–13) EPIYA-ABBC; H (columns 14–16) EPIYA-ABBCCC. DNA from the H. pylori 43504 strain, which contains the EPIYA-ABCCC motif, was used as a positive control. Size of products of EPIYA motifs by PCR-specific: EPIYA A motif (~264 bp), EPIYA B (~306 bp ), second EPIYA B motif (500 bp), first EPIYA C (501 PB) second EPIYA C motif (~650 bp) and third EPIYA-C (>650 bp).Back to article page