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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2018 Apr 18;29(7):1505–1511. doi: 10.1007/s13361-018-1946-6

Figure 1. TMT reagents and peptides used in this experiment.

Figure 1

A) The table lists the phos9 phosphopeptide sequences, m/z for TMTzero- and TMTsh-labeled phosphopeptides, isoelectric point for unlabeled phosphopeptide, and associated protein. B) Chemical structures of TMTzero and TMTsh. C) Spectrum highlighting the mass difference between a doubly charged, lysine-terminating peptide (DLPEPIpSPETK) labeled with TMTzero and TMTsh.