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. Author manuscript; available in PMC: 2018 Feb 20.
Published in final edited form as: ACS Comb Sci. 2017 Sep 29;19(11):694–701. doi: 10.1021/acscombsci.7b00109

Figure 4.

Figure 4

Proposed library decoding workflow yields reliable results. Sequences assigned to spectra from a library analysis were resynthesized and subjected to analogous analytical conditions. Original library-derived spectra are shown in blue; spectra of authentic peptides are displayed in red. (A) Overlaid raw CID fragmentation spectra (collision energy = 20.6 eV, precursor ion: 710.82 Da/e) for GCβFLDEVEFPHG peptide (β = β-alanine). (B) Overlaid raw CID fragmentation spectra (collision energy = 21.1 eV, precursor ion: 654.77 Da/e) for GCβFADASEFPHG peptide.