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A key step in proteomics is the digestion of proteins into peptides, so far largely done by using trypsin. Tryptic digestion leads to peptides that in ESI-MS attain predominantly two charges, via protonation at the free N-terminus and at the C-terminal basic residue Arginine or Lysine. These peptide...
ORGANISM(S): Homo sapiens (Human) 
2016-12-02 | PXD004447 | Pride
ADP-ribosylation is a posttranslational modification whose HCD products are dominated by complete or partial modification losses, complicating peptide sequencing and acceptor site localization efforts. We tested whether in-source CID performed on a quadrupole Orbitrap could convert ADPr to the small...
ORGANISM(S): Homo sapiens (Human) 
2024-12-05 | PXD055586 | Pride
Dissecting site-specific functions of O-glycosylation requires simultaneous identification and quantification of differentially ex-pressed O-glycopeptides by mass spectrometry. However, different dissociation methods have not been systematically compared in their performance in terms of identificati...
ORGANISM(S): Homo sapiens (Human) 
2021-11-25 | PXD025407 | Pride
We present the adaptability of Mascot search engine for automated identification of intact glycopeptide mass spectra. The steps involved in adopting Mascot for intact glycopeptide analysis include: i) assigning unique one letter codes for monosaccharides, ii) linearizing glycan sequences and iii) pr...
ORGANISM(S): Homo sapiens (Human) 
2018-02-08 | PXD005931 | Pride
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