CGview plot of the E. coli 2009-46 genome. The two outermost circles in the figure contain a series of arrows in opposite directions representing predicted ORFs (greater than 100 codons) on the two strands of DNA sequence. The solid line, forming the third ring (from outside) indicates BLASTn analysis (set with a cutoff of 1e-10) of the isolate against the E. coli 536 genome. Relative GC content along the length of the genome is plotted as a graph in the black circle. The GC content clearly indicates multiple regions of GC content variation along the genome, possibly indicating lateral gene transfer events.