Figure 3.
MALDI-TOF spectra (from DHB) of the desialylated N-glycans released from (a) GP1-HA and (b) sGP-HA. Symbols used for the structural formulae are defined in the legend to Fig. 1. Spectra have been smoothed (Savitzky Golay 2 × 2) and processed with the MaxEnt 2 function of MassLynx to improve resolution. Ions around m/z 1200 in the lower spectrum are from contaminants. In addition, two very abundant ions from additional contaminants at m/z 1373 and 1712 in the lower spectrum have been removed for clarity. Ions are labelled with their monoisotopic masses.