Fig. 1

Visualization of gene-gene interaction network. Figure 1a is the plot of the numbers of interacted genes against interaction/contact thresholds for four cells/cell lines respectively. X-axis denotes the interaction thresholds and Y-axis the numbers of interacted genes found at the thresholds. Figure 1b is the visualization of the largest cluster of the gene-gene interaction network for the Call4 cell line at interaction threshold 16. The network was visualized by Cytoscape [24]