Fig. 3. Comparison with previous glycopeptide studies. (A) Venn diagram comparing the identified glycopeptides in this study with those by Zhang et al.¹⁴ (B) From the glycopeptides unique to Zhang et al. and this study, eight common glycans structures were chosen, and their frequency distribution is shown. (C) All plausible glycan structures found on the unusual glycosylation motif, NXC, were extracted and compared. Eight plausible structures were common to both datasets while 14 were unique to this study and eight to Zhang et al.