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PCR-RFLP patterns of the 1400 bp fragments digested with MboΙΙ enzyme in order to detect A2142G point mutation in 23s rRNA gene.
Line1: 3000 bp DNA marker (fermentas); Line 2: Negative control (only enzyme); Line 3: only PCR product (1400 bp); Line 4, 5, 6, 7, 8: 1400 bp fragment+MboΙΙ; Line 4, 8: clarithromycin-sensitive H. pylori isolates; Line 5, 6, 7: clarithromycin-resistant isolates
