Fig. 3From: Molecular investigation of the colicinogenic Escherichia coli strains that are capable of inhibiting E. coli O157:H7 in vitroAmplification of Colicin ANS4, E1, Iab genes. A) DNA Ladder, B) Negative control, C) Negative control, D) Positive isolate for Colicin ANS4 gene, E) Negative isolate, F) Positive isolate for Colicin E1 gene, and G) Positive isolate for Colicin Iab gene.Back to article page