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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Mol Microbiol. 2014 Dec 8;95(2):231–244. doi: 10.1111/mmi.12858

Fig. 1.

Fig. 1

SRM mass spectrometry analysis of the acetylated peptide TIRADGAMSALPVLMVTAEAacK. The plots show overlaid chromatograms of the measured SRM transitions (product ions): b11 (blue), y10 (orange), b14 (purple) and b15 (red). The synthetic standard was external (not spiked directly into the sample), hence the slightly different retention time from the native peptide.