Fig. 2.

Global comparison between of the chromosomes of E. coli NCTC 86 and E. coli K-12 MG1655. The red bars between the DNA lines represent individual tblastx matches, with inverted matches coloured blue. Regions where inversion occurs have been expanded, with RNA genes in green, backbone flanking regions in purple, and either side of the inversion in blue and orange. The products arising from PCR amplification of genomic DNA with primers corresponding to gmhB (primer 1) and dkgB (primer 2) or kgtP (primer 3) were separated by agarose gel electrophoresis and are shown in insets; sizes (bp) are shown on the left of the gel images.