Figure 7: Relationship between predicted promoter classes and protein differential abundance. Histograms of differential protein abundance [log2(iTRAQpro-B/pre-pro-B)] for genes of the ‘active in both’ (A), ‘inactive in both’ (B), ‘exclusively pre-pro-B’ (C), and ‘exclusively pro-B’ (D) predicted promoter classes. The shaded region of the plot represents non-differentiallyabundant proteins and the unshaded region indicates differentially abundant proteins based on a 1.5 fold difference threshold. Each bar on the plots represents a bin with a range of 0.25.