Cited by 1,190Metabolomics and Mass Spectrometry StudiesMass Spectrometry Techniques and ApplicationsComputational Drug Discovery Methods

Searching molecular structure databases with tandem mass spectra using CSI:FingerID

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Dührkop, Kai, Shen, Huibin, Meusel, Marvin, Rousu, Juho, Böcker, Sebastian·2015·Proceedings of the National Academy of Sciences

Abstract

Significance: Untargeted metabolomics experiments usually rely on tandem MS (MS/MS) to identify the thousands of compounds in a biological sample. Today, the vast majority of metabolites remain unknown. Recently, several computational approaches were presented for searching molecular structure databases using MS/MS data. Here, we present CSI:FingerID, which combines fragmentation tree computation and machine learning. An in-depth evaluation on two large-scale datasets shows that our method can find 150% more correct identifications than the second-best search method. In comparison with the two runner-up methods, CSI:FingerID reaches 5.4-fold more unique identifications. We also present evaluations indicating that the performance of our method will further improve when more training data become available. CSI:FingerID is publicly available at www.csi-fingerid.org .

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Crossref · 10.1073/pnas.1509788112

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Authors
Dührkop, K., Shen, H., Meusel, M., Rousu, J., & Böcker, S.
Affiliations
  • Friedrich Schiller University Jena (DE)
  • Helsinki Institute for Information Technology (FI)
Venue
Proceedings of the National Academy of Sciences
Published
2015-09-21
Volume
112
Issue
41
Pages
12580-12585
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2179948434
Cited by
1,190
References
60
Citations by year
2026: 162 · 2025: 182 · 2024: 166 · 2023: 139 · 2022: 132 · 2021: 106 · 2020: 79 · 2019: 79 · 2018: 64 · 2017: 46 · 2016: 33 · 2015: 2
FWCI
21.00
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (BO 1910/16)
  • Suomen Akatemia (268874/MIDAS)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
Keywords
tandem mass spectrometry, molecular structure databases, fragmentation trees, untargeted metabolomics, PubChem, unknown compound identification
MeSH terms
Machine Learning, Animals, Humans, Mass Spectrometry, Databases, Protein, Metabolomics

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