Network and pathway structure for biologically informative priors in the cancer drug response data study. Network constructed using information fromcellsignal.com. Square nodes represent fully connected subnetworks consisting of iso-forms and phospho-forms of the named protein (see Additional file1). Node colouring represents pathway structure. Red, blue, yellow, green and purple nodes denote 5 pathways. Orange nodes are in both the red and yellow pathways. Light grey nodes are in all 5 pathways. Dark grey node is in all pathways except the purple pathway. White nodes are not assigned to a pathway.