Fiche publication
Date publication
février 2025
Journal
Journal of proteome research
Auteurs
Membres identifiés du Cancéropôle Est :
Dr CARAPITO Christine
Tous les auteurs :
Declercq A, Devreese R, Scheid J, Jachmann C, Van Den Bossche T, Preikschat A, Gomez-Zepeda D, Rijal JB, Hirschler A, Krieger JR, Srikumar T, Rosenberger G, Martelli C, Trede D, Carapito C, Tenzer S, Walz JS, Degroeve S, Bouwmeester R, Martens L, Gabriels R
Lien Pubmed
Résumé
The high throughput analysis of proteins with mass spectrometry (MS) is highly valuable for understanding human biology, discovering disease biomarkers, identifying therapeutic targets, and exploring pathogen interactions. To achieve these goals, specialized proteomics subfields, including plasma proteomics, immunopeptidomics, and metaproteomics, must tackle specific analytical challenges, such as an increased identification ambiguity compared to routine proteomics experiments. Technical advancements in MS instrumentation can mitigate these issues by acquiring more discerning information at higher sensitivity levels. This is exemplified by the incorporation of ion mobility and parallel accumulation and serial fragmentation (PASEF) technologies in timsTOF instruments. In addition, AI-based bioinformatics solutions can help overcome ambiguity issues by integrating more data into the identification workflow. Here, we introduce TIMSRescore, a data-driven rescoring workflow optimized for DDA-PASEF data from timsTOF instruments. This platform includes new timsTOF MSPIP spectrum prediction models and IM2Deep, a new deep learning-based peptide ion mobility predictor. Furthermore, to fully streamline data throughput, TIMSRescore directly accepts Bruker raw mass spectrometry data and search results from ProteoScape and many other search engines, including Sage and PEAKS. We showcase TIMSRescore performance on plasma proteomics, immunopeptidomics (HLA class I and II), and metaproteomics data sets. TIMSRescore is open-source and freely available at https://github.com/compomics/tims2rescore.
Mots clés
DDA-PASEF, machine learning, mass spectrometry, peptide identification, proteomics, rescoring, timsTOF
Référence
J Proteome Res. 2025 02 6;: