Fig. 2

Characteristics of phosphorylated residues, phosphopeptides, and phosphoproteins data obtained in the study. a Frequency of phosphorylated residues distributed in the phosphopeptides: one phosphorylation site is 38 %, two phosphorylation sites is 40 %, three phosphorylation sites is 13 %, four phosphorylation sites is 6 % and more than four phosphorylation sites is 3 %. b Distribution of phosphorylation sites (class I) in the phosphoproteomic data. c Number of unique phosphopeptides and phosphoproteins identified in each time point experiment