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Figure 1 | Annals of Clinical Microbiology and Antimicrobials

Figure 1

From: Frequency of vacA, cagA and babA2 virulence markers in Helicobacter pylori strains isolated from Mexican patients with chronic gastritis

Figure 1

Identification of H. pylori isolated from gastric biopsy samples and genotyping of its main virulence genes by PCR. Images shown are from representative gel electrophoresis. A: Lane 1, MWM 50 bp-ladder; Lanes 2 and 9 negative control without DNA; Lanes 3–8, 10 and 11, H. pylori isolated from gastric biopsy samples (417-bp amplicon); Lane 12, reference strain H. pylori ATCC 43629. B: Lane 1, negative control without DNA, Lane 2, MWM 50 bp-ladder; Lanes 3–6, H. pylori isolated from gastric biopsy samples (230-bp amplicon); Lane 7, H. pylori ATCC 43629. C: Lane 1, MWM 50-bp-ladder; Lane 2, H. pylori isolated from gastric biopsy sample (vacA s1, m1 cagA); Lane 3, negative control without DNA; Lanes 4–5, H. pylori isolated from gastric biopsy samples (vacA s1, m1); Lane 6, ATCC 43629. D: Lane 1, MWM 200 bp-ladder; Lane 2, ATCC 43629; Lanes 3,4,6 and 8, babA2-positive H. pylori isolated from gastric biopsy samples; Lane 5, control without DNA; Lane 7, babA2-negative H. pylory isolated from gastric biopsy sample.

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Annals of Clinical Microbiology and Antimicrobials

ISSN: 1476-0711

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