Punctual mutations in 23S rRNA gene of clarithromycin-resistant Helicobacter pylori in Colombian populations

Figure 1 Electrophoretic pattern of PCR products of 23S rRNA gene V domain in Colombian Helicobacter pylori isolates. Electrophoresis of PCR amplification products of 23S rRNA gene V domain of Helicobacter pylori isolates was performed using 2% agarose gel. MP corresponds to the molecular weight marker of 100 bp; the arrow indicates the band corresponding to 600 bp; lanes To1 to To11, correspond to DNA of the isolates resistant to clarithromycin from the Colombian population with a low risk of gastric cancer (Tumaco).