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. 2013 Feb 11;12(4):932–944. doi: 10.1074/mcp.O112.021972

Fig. 5.

Fig. 5.

ESI-ETD-Orbitrap-MS2 spectra of selected tyrosine O-glycopeptides identified in this study. ETD-MS2 spectra of O-glycopeptides from CD44 (residues 545–568; precursor m/z 871.1893, z = 5+) are consistent with glycosylation of Tyr-560 along with Ser-653, Thr-654, Thr-655, Thr-661, Ser-662, Thr-667 (A); NUCB1 (residues 32–53; precursor m/z 761.3487, z = 4+) is consistent with glycosylation of Tyr-50 along with Thr-39 and Thr-42 (B); ECM1 (residues 32–53; precursor m/z 721.3652, z = 4+) is consistent with glycosylation of Tyr-43 along with Ser-48 (C); and PRAP1 (residues 102–127; precursor m/z 858.6449, z = 4+) is consistent with glycosylation of Tyr-113 along with Ser-104 (D).