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. 2021 Feb 6;22(4):1648. doi: 10.3390/ijms22041648

Figure 1.

Figure 1

HCD MS/MS spectra of the doubly protonated peptide 1 (A) at 30% NCE and conjugates 2 (B), and 3 (C) at 20% NCE. ETD MS/MS spectra of the triply protonated 1 (D), 2 (E), and 3 (F). EThcD MS/MS spectra of the triply protonated 1 (G) at 10% NCE, and 2 (H) and 3 (I) at 40% NCE. Neutral losses are depicted as follows: * = sugar, ’ = NH3, ° = H2O, # = Dau + sugar.