International Journal of Proteomics / 2012 / Article / Fig 2

Research Article

Identification of Human Serum Peptides in Fourier Transform Ion Cyclotron Resonance Precision Profiles

Figure 2

ESI-FTICR-MS/MS spectra of a prothrombin peptide isolated from a human serum sample, with sequence coverage in CID (a) and ETD (b). In order to exemplify the ultrahigh resolving power of the system the insets show the isotopic patterns of fragment ions at m/z 793 [y34(5+)] and at m/z 1028 [y35(4+)].

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