Table II. Detailed overview of all identified human blood plasma O-glycopeptides. For each O-glycopeptide, the corresponding glycoprotein including the UniProtKB accession number, the identified O-glycosylation site(s)/regions as well as the O-glycan composition are given, respectively. Likewise, the LC-MS retention time, the mass of the intact glycopeptide precursor, the measured peptide mass as well as the corresponding error is listed. The peptide identification using CID-MS3 was validated by the MASCOT peptide score and the Biotools score (CID). ETD based determination of the O-glycosylation site(s) was validated by the Biotools score (CID) as well as the NetOGlyc 4.0 score.
