FIGURE 2.
Quantitative proteomics approach used to reveal global interplay between phosphorylation and SUMOylation. A, flow chart of SILAC-based quantitative phosphoproteomics procedure. B, selected examples of mass spectra used in detection and quantitation of phosphopeptides. One phosphopeptide is originated from transcription factor AP-1, and the other one is from Lamin-A/C.