A 38.8 kb region including nonfimbrial adhesin genes that is unique to PXO99A. A: organization of the region in the PXO99A genome. Block arrows represent genes; inverted triangles represent insertion sequence elements. The region is flanked by DSP (dual specificity protein) and DBP (DNA binding protein) encoding genes, which are also present in MAFF and KACC. B: the corresponding locus in MAFF and KACC, missing the entire block of genes. The point of insertion/deletion maps to an ISXo5 insertion sequence element between DSP and DBP.
Salzberg et al. BMC Genomics 2008 9:204 doi:10.1186/1471-2164-9-204