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Figure 2 | Genome Biology

Figure 2

From: Large-scale and high-confidence proteomic analysis of human seminal plasma

Figure 2

Two consecutive stages of mass spectrometric fragmentation (MS3). (a) The precursor of a peptide LTPITYPQGLAMAK (see insert) was selected for fragmentation from a full scan of mass-to-charge ratio (m/z) range. (b) A fragment of the above, the doubly charged y12 ion, was subsequently fragmented. (c) The characteristic pattern for charged directed fragmentation is observed in MS3 spectra and confirms the identification of the above peptide.

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