Figure 2: Tissue distribution of phosphoproteins.
From: Quantitative maps of protein phosphorylation sites across 14 different rat organs and tissues
(a) Hierarchical clustering of phosphoproteins and tissues based on label-free quantification of protein intensities from both enrichment steps (1 and 2). Low-intensity phosphoproteins are depicted in blue and high-intensity phosphoproteins are depicted in yellow. Red boxes highlight clusters of phosphoproteins that are either specific to a certain tissue or present in all tissues. (b) Histograms depicting the total number of phosphoproteins identified from each of the two enrichment steps (shown in blue) as well as the total number of phosphoproteins identified in each tissue obtained from merging the data from the two enrichment steps (shown in grey).
