Using fragmentation trees and mass spectral trees for identifying unknown compounds in metabolomics

A Vaniya, O Fiehn - TrAC Trends in Analytical Chemistry, 2015 - Elsevier
Identification of unknown metabolites is the bottleneck in advancing metabolomics, leaving
interpretation of metabolomics results ambiguous. The chemical diversity of metabolism is …

SIRIUS 4: a rapid tool for turning tandem mass spectra into metabolite structure information

K Dührkop, M Fleischauer, M Ludwig, AA Aksenov… - Nature …, 2019 - nature.com
Mass spectrometry is a predominant experimental technique in metabolomics and related
fields, but metabolite structural elucidation remains highly challenging. We report SIRIUS 4 …

Mining molecular structure databases: Identification of small molecules based on fragmentation mass spectrometry data

F Hufsky, S Böcker - Mass spectrometry reviews, 2017 - Wiley Online Library
Mass spectrometry (MS) is a key technology for the analysis of small molecules. For the
identification and structural elucidation of novel molecules, new approaches beyond …

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

K Dührkop, H Shen, M Meusel… - Proceedings of the …, 2015 - National Acad Sciences
Metabolites provide a direct functional signature of cellular state. Untargeted metabolomics
experiments usually rely on tandem MS to identify the thousands of compounds in a …

Fragmentation trees reloaded

S Böcker, K Dührkop - Journal of cheminformatics, 2016 - Springer
Background Untargeted metabolomics commonly uses liquid chromatography mass
spectrometry to measure abundances of metabolites; subsequent tandem mass …

Chemically informed analyses of metabolomics mass spectrometry data with Qemistree

A Tripathi, Y Vázquez-Baeza, JM Gauglitz… - Nature chemical …, 2021 - nature.com
Untargeted mass spectrometry is employed to detect small molecules in complex
biospecimens, generating data that are difficult to interpret. We developed Qemistree, a data …

Nontargeted screening of chemical contaminants and illegal additives in food based on liquid chromatography–high resolution mass spectrometry

Y Fu, C Zhao, X Lu, G Xu - TrAC Trends in Analytical Chemistry, 2017 - Elsevier
Nowadays food safety has become one of the focus topics all over the world. Illegal addition
of additives and chemical contaminants are the prominent problems. Because of the …

A map of mass spectrometry-based in silico fragmentation prediction and compound identification in metabolomics

CA Krettler, GG Thallinger - Briefings in Bioinformatics, 2021 - academic.oup.com
Metabolomics, the comprehensive study of the metabolome, and lipidomics—the large-scale
study of pathways and networks of cellular lipids—are major driving forces in enabling …

Machine learning for identification of silylated derivatives from mass spectra

M Ljoncheva, T Stepišnik, T Kosjek… - Journal of …, 2022 - Springer
Motivation Compound structure identification is using increasingly more sophisticated
computational tools, among which machine learning tools are a recent addition that quickly …

Cheminformatics in MS-based environmental exposomics: Current achievements and future directions

M Ljoncheva, T Stepišnik, S Džeroski… - Trends in Environmental …, 2020 - Elsevier
Compound annotation using MS/MS data is the major bottleneck in interpretation of mass
spectrometry data during non-targeted screening and suspect screening exposomics …