Figure 2From: Frequency distribution of genes encoding aminoglycoside modifying enzymes in uropathogenic E. coli isolated from Iranian hospitalAgarose gel electrophoresis of amplified DNA fragments by PCR from reference strains and clinical isolates of E. coli . Lanes: 2, 100 bp Plus DNA ladder (GeneRuler_; Fermentas); 1, E. coli ATCC 25922 as negative control; 3, 23823 [aac(3)-IIa+] both were used as positive controls; 4–8, clinical isolates of E. coli.Back to article page