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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Anal Biochem. 2009 Aug 21;396(1):13–22. doi: 10.1016/j.ab.2009.08.027

Figure 2.

Figure 2

Tandem MS results and LC-extracted ion chromatograms of peptide 9KSTGGKAPR17 from an LTQ FT-ICR mass spectrometer. Product ions resulting from neutral loss of H2O or NH3 are indicate by ‘ and * respectively. The peak labeled a was from the second isotopic peak of +3 charged peak at 450.5921 m/z and b was from an unidentified +3 charged peak at m/z 493.2911. Their MS/MS spectra were obtained but not matched by the database search. Lower charge states were not observed for peaks a and b.