FIG. 1.

Schematic representation of the seven circular plasmid loci characterized in B. burgdorferi 297 containing ospE and ospF homologs and elp genes. ORFs are shown as boxed regions. The numbers above the ORFs in the downstream regions flanking the lipoprotein-encoding genes indicate the deduced sizes of the encoded polypeptides. The arrows below the ORFs indicate the directions of transcription. H indicates the unique HindIII sites for each locus. The dashed regions indicate unsequenced regions. The OspE, p21, OspF, BbK2.10, BbK2.11, and Elp proteins determined to be evolutionarily related are shaded the same. ORFs identified downstream of the lipoprotein-encoding loci which are highly similar between the different circular plasmids also are shaded the same.