Belong to. The majority of genes belong to few pathways whereas few genes (hubs) belong to several pathways (scale free distribution). A) Histogram obtained from the KEGG database for the Rattus norvegicus organism. B) Histogram obtained from the genes on rat Affymetrix U34A Gene Chip. 3) Histogram obtained from the significant genes for MYC dataset.<p><b>Copyright information:</b></p><p>Taken from "Reconstructing networks of pathways via significance analysis of their intersections"</p><p>http://www.biomedcentral.com/1471-2105/9/S4/S9</p><p>BMC Bioinformatics 2008;9(Suppl 4):S9-S9.</p><p>Published online 25 Apr 2008</p><p>PMCID:PMC2367636.</p><p></p