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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Nat Methods. 2015 Apr 20;12(6):561–567. doi: 10.1038/nmeth.3366

Figure 3.

Figure 3

IsoTaG identified a diversity of intact glycopeptides. (a) N-glycan structures (N1–N16) identified. (b) O-glycan structures identified include O-GlcNAc (O1), Tn (O2), STn (O5), core 1 (O3), core 2 (O11), core 3 (O4), core 4 (O10) and sialylated variants (O6–O9). A purple peptide (bar) indicates a glycan and peptide sequence were identified for at least one glycopeptide. These species generated interpretable peptide fragments. An orange peptide indicates that only the glycan was assigned. These species gave unassignable peptide fragments. (c,d) Frequencies of observed peptides bearing N-glycans (c) and O-glycans (d).