Figure 3.
MS/MS spectra of [M + 3H/3]3+ ion at m/z 1154.144 (a), 952.750 (b) and 948.738 (c) that were assigned to rhEPO peptide HCSLNENITVPDTK (Pep) N‐linked to G2M5XF* in CC5325, M4F** in IM XTA × IM XTB and M5 in IM XTA × IM XTB × IM FUT . Main doubly charged ions were assigned to the glycopeptide fragments. Blue square: GlcNAc; green circle: Man; blue circle: Glc, yellow star: β(1,2)‐xylose and red triangle: α(1,3)‐fucose. *O‐methylation.