Circular representation of the O157:H7 Sakai chromosome

The outermost cicle indicates the chromosomal location in base pairs (each tick is 100Kb). The second and the third show predicted ORFs transcribed in the clockwise and anticlockwise directions, respectively. ORFs conserved in E.coli K-12 (MG1655) are depicted in green color and those not present in K-12 in red. The fourth circle shows the locations of ORFs on prophage genomes in gray color. The fifth shows the 20Kb window-average of G+C percent in relation to the mean value of the chromosome. The locations of tRNA and rRNA (blue) genes are shown in the sixth and seventh circles, respectively. tRNAs conserved in K-12 are depicted in green, and those absent in K-12 are in red.

2001, Genome Information Research Center