Figure 2

The TRN of P. Aeruginosa. Different types of genes are represented by nodes with different colors; TF (yellow), σ (red), ECF (orange) anti-σ factors (brown), and non-regulatory genes (blue). Arrows represent the modes of regulation; transcriptional activation (green), transcriptional repression (red), transcriptional dual regulation (blue), and undefined (gray); transcription by σ (orange) and σ control by anti-σ (black). The network was drawn using the Cytoscape software [28]. For a better clarity, a poster version of this figure is available as additional file 2.