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. 2025 Jun 14;24(7):3412–3428. doi: 10.1021/acs.jproteome.5c00093

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© 2025 The Authors. Published by American Chemical Society

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Best PSMs and XICs obtained by DDA and UDMS^E, respectively, for the triply protonated ions of peptides SHC[+57.021]IAEVENDEM[+281.112]PADLPSLAADFVESK (^311–337HSA) (A), ATK[+369.213]EQLK (^563–569HSA) (B), and ATK[+369.213]EQLK (^563–569HSA) (C). Representative XICs are shown for RA donor samples R12 and R35 and the control donor sample G19. For each peptide, XICs are shown for the first three isotopes of the precursor ion signals (top panels) and the five most intense fragment ion signals (bottom panels) selected from the DDA spectral libraries. Traces that could not be quantified due to integration interferences are shown as dashed lines.