Figure 1. Functional network retrieved from insomnia and POI gene intersection A) PPI analysis retrieved 3 networks and a total of 16 nodes. Network 1 (blue) contains 5 nodes, including 4 proteins coded by genes in the intersect gene list. Network 2 (pink), contains 9 nodes, including 5 proteins coded by genes in the intersect gene list. Network 3 (green) contains 2 nodes, including 2 proteins coded by genes in the intersect gene list. B) The nodes in pink are part of the POI vs. Insomnia intersect gene list, the nodes in green are interactors. C) The color scale represents the expression level of these proteins in the nervous system in a scale from 1 to 5