FIG. 2.

Representation of the genes annotated in the Escherichia coli UMN026 GRM. ORF categories are indicated as follows. Genes coding for resistance to antibiotics, antiseptics, or heavy metals are in gray, transposition elements are dotted, integrases have diagonal lines, and a hypothetical protein (HP) is in white. Boxes indicate the rearranged Tn21-like element. The partly inverted repeats (IRs), as well as the res and attI sites of the Tn21-like element and of the class 1 integron, respectively, are indicated in black. The ORFs and noncoding sequences are not presented to scale. Subregions 1 and 2 are indicated within brackets (Fig. 4).