Figure 2
From: Large-scale Discovery of Substrates of the Human Kinome

pS/T/Y distribution of in vitro substrates for STK and TK. Phosphorylated STY ratios are indicated for 354 wild-type human protein kinases, including 81 TKs and 273 STKs. The blue, green and yellow bars represent pS, pT and pY, respectively. Phosphosites were confirmed by (a) the presence of site-determining ions or (b) localization probability P > 0.75 based on PTM score.