Cited by 76Advanced Proteomics Techniques and ApplicationsRNA and protein synthesis mechanismsGenomics and Phylogenetic Studies

A proteogenomics approach integrating proteomics and ribosome profiling increases the efficiency of protein identification and enables the discovery of alternative translation start sites

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Koch, Alexander, Gawron, Daria, Steyaert, Sandra, Ndah, Elvis, Crappé, Jeroen, De Keulenaer, Sarah, De Meester, Ellen, Ma, Ming +5 more·2014·PROTEOMICS

Abstract

Next‐generation transcriptome sequencing is increasingly integrated with MS to enhance MS‐based protein and peptide identification. Recently, a breakthrough in transcriptome analysis was achieved with the development of ribosome profiling (ribo‐seq). This technology is based on the deep sequencing of ribosome‐protected mRNA fragments, thereby enabling the direct observation of in vivo protein synthesis at the transcript level. In order to explore the impact of a ribo‐seq‐derived protein sequence search space on MS/MS spectrum identification, we performed a comprehensive proteome study on a human cancer cell line, using both shotgun and N‐terminal proteomics, next to ribosome profiling, which was used to delineate (alternative) translational reading frames. By including protein‐level evidence of sample‐specific genetic variation and alternative translation, this strategy improved the identification score of 69 proteins and identified 22 new proteins in the shotgun experiment. Furthermore, we discovered 18 new alternative translation start sites in the N‐terminal proteomics data and observed a correlation between the quantitative measures of ribo‐seq and shotgun proteomics with a Pearson correlation coefficient ranging from 0.483 to 0.664. Overall, this study demonstrated the benefits of ribosome profiling for MS‐based protein and peptide identification and we believe this approach could develop into a common practice for next‐generation proteomics.

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  • Studies of RNA-guided protein AS isoform discovery have largely been performed in transformed cell lines or tumors known to have aberrant splicing.

    “Thus far, however, studies of this type have largely been performed in transformed cell lines or tumors known to have aberrant splicing (Ning and Nesvizhskii, 2010; Koch et al., 2014; Sheynkman et al., 2013; Evans et al., 2012; Liu et al., 2017).”

    From Splice-Junction-Based Mapping of Alternative Isoforms in the Human Proteome (2019) · cites this paper as Koch et al., 2014

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  1. [55]Michel A O’Connor P Choudhury RK Firth A EMBO Conference Series: Protein Synthesis and Translational Control Heidelberg, Germany 2013

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Authors
Koch, A., Gawron, D., Steyaert, S., Ndah, E., Crappé, J., De Keulenaer, S., De Meester, E., Ma, M., Shen, B., Gevaert, K., Van Criekinge, W., Van Damme, P., & Menschaert, G.
Affiliations
  • Ghent University (BE)
  • Department of Medical Protein Research Flemish Institute of Biotechnology Ghent Belgium
  • Vlaams Instituut voor Biotechnologie (BE)
  • Laboratory of Bioinformatics and Computational Genomics Department of Mathematical Modeling Statistics and Bioinformatics Faculty of Bioscience Engineering Ghent University Ghent Belgium
  • Scripps Research Institute (US)
Corresponding author
Menschaert, Gerben
Venue
PROTEOMICS
Publisher
Wiley
Published
2014-10-02
Volume
14
Issue
23-24
Pages
2688-2698
ISSN
  • 1615-9853 (ISSN-L)
  • 1615-9861
OpenAlex
W2014201551
Cited by
76
References
58
Citations by year
2026: 3 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 7 · 2021: 7 · 2020: 4 · 2019: 6 · 2018: 7 · 2017: 6 · 2016: 11 · 2015: 11 · 2014: 3
FWCI
4.43
Type
journal article
Language
en
Open access
Locations
  • PROTEOMICS (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
Funders
Fonds Wetenschappelijk Onderzoek (G.0440.10, G.0269.13N)
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
proteogenomics, ribosome profiling, alternative translation start sites, protein identification, shotgun proteomics, human cancer cell lines, genetic variation
MeSH terms
Humans, Proteins, Ribosomes, Protein Biosynthesis, Computational Biology, Proteomics, HCT116 Cells, Tandem Mass Spectrometry

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