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. 2018 May 8;46(Web Server issue):W473–W478. doi: 10.1093/nar/gky353

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© The Author(s) 2018. Published by Oxford University Press on behalf of Nucleic Acids Research.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 2. — SVG output of xiSPEC’s views for a cross-linked peptide example. (A) Peptide sequence with fragmentation key. Amino acid residues in one-letter code. Lines show matched peptide fragments. Grayed-out residues are not included in currently selected fragment. (B) Annotated mass spectrum. Matched peaks are colored and labeled (though labels of neutral-loss fragments are hidden in this example). (C) and (D) show spectra QC plots. Each point represents a matched peak of the mass spectrum. (C) Fragment match error over peak intensity. (D) Match error over m/z. Coloring (red and blue) is used to differentiate between the two peptides. Neutral-loss fragments are displayed in a lighter color. Yellow highlight is the currently selected fragment (interconnected between all views).