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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Amino Acids. 2010 Mar 22;41(1):7–27. doi: 10.1007/s00726-010-0552-0

Fig. 3.

Fig. 3

LC/ESI mass spectral analysis of covalently modified peptides. Tandem mass spectra of the triply-charged peptide-ions at m/z of 1006.4 (122FFK~FSRDVFLPK~ PSWGNHTIPF148R), 603.31 (242HFIEQGINVC@LCQSYAK^NM*GLYGE266R) and 981.30 (267VGAFTVVC@ KDAEEAK282R). Modified amino acid residues are indicated as in Table 4.