Figure 1.

Circular map of plasmid pSFA231. The 50 orfs identified in the nucleotide sequence of pSFA231 are located on a circular map. The orfs are shown by arrows indicating the direction of transcription. Different colors indicate replication (orange) and partitioning functional regions (yellow), and the transfer functional regions (blue). Hypothetical coding regions are shown in gray. The genes transcribed in clockwise orientation are in the outer perimeter and those transcribed in anti-clockwise orientation are in the inner perimeter. The restriction enzyme cutting sites are shown as a filled circle.