Figure 2.

Plasmid homology networks. The output of B2N launched on the proteins encoded by 39 plasmids of three enterobacteria. Each protein in the dataset (see Table 1) is arranged circularly with proteins from the same source plasmid; proteins from the same plasmid are shown the same colour. Links connecting different nodes represent alignments found by BLAST (length > 70 amino acids and E-value<0.0001); consequently they describe the relationships existing between plasmids with a 90% (a) or 100% (b) identity cut-off; c) graphical legend. Symbols: squares, circles, and diamonds represent E. coli, Salmonella and Shigella plasmid proteins, respectively.