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. Author manuscript; available in PMC: 2013 Mar 30.
Published in final edited form as: Biochem Biophys Res Commun. 2012 Feb 28;420(1):54–60. doi: 10.1016/j.bbrc.2012.02.114

Figure 3.

Figure 3

Representative LC-MS/MS spectra and assignments of the sequence-specific fragment ions of the nitrated peptides. The sequence-specific fragment ions are labeled as y and b ions on the spectra. For the peptide 2, the mass difference of 208 detected between b4 and b5 and between y5 and y6 corresponds to nitrated tyrosine residue (163 (Tyr) + 45 (nitration)). For the peptide 5, the mass difference of 208 detected between b5 and b6 and between y3 and y4 corresponds to nitrated tyrosine residue.