Figure 1.
Schematic of our Triple SILAC paired with SPEG quantitative analysis strategy. Three cell lines are differentially labeled isotopically and mixed prior to enzyme digestion. Glycopeptides are conjugated onto a solid support and release with PNGase F prior to LC-MS/MS analysis. Glycopeptides are identified at the MS/MS level and quantified at the MS level using QuantiMORE.