Figure 1
From: Prevalence of Helicobacter pylori vacA, cagA, iceA and oipA genotypes in Tunisian patients
Genotyping of iceA2 and oipA genes by PCR. A: example of iceA 2 genotyping. Lane 1, negative control without DNA, Lanes 2, 6, 8 and11, iceA 2 negative H. pylori strain, Lanes 3, 4 and 13, iceA 2 positive H. pylori strain (229-bp), Lanes, 5, 9, 10, 12 and 14, iceA 2 positive strain (334-bp), Lane 7,100-bp DNA marker. B: example of oipA genotyping. Lane 1, negative control without DNA, Lanes 2, 5, 6, 10, 11, 13 and 14, oipA positive strains, Lane 7, 100-bp DNA marker, Lanes 3, 4, 8, 9 and 12, oipA negative strains.