Figure 1.
Distribution of IS elements and prophages in the IL1403 chromosome. Outer circle shows the scale in basepairs. IS981, IS983, and IS1077 are shown by yellow, red, and blue squares, respectively (enlarged for clarity). Red and blue arcs show the areas of IS983 and IS1077 insertions. pi prophages are shown in violet, and ps in black. Green circle shows GC skews (C−G/C+G) distribution (window 20 kb, step 5 kb), which indicates the origin (near bp 1) and terminus (near bp 1,260,000) of replication.
