- Identifying metabolites by integrating metabolome databases with mass spectrometry cheminformatics.
Identifying metabolites by integrating metabolome databases with mass spectrometry cheminformatics.
Nature methods (2017-11-28)
Zijuan Lai, Hiroshi Tsugawa, Gert Wohlgemuth, Sajjan Mehta, Matthew Mueller, Yuxuan Zheng, Atsushi Ogiwara, John Meissen, Megan Showalter, Kohei Takeuchi, Tobias Kind, Peter Beal, Masanori Arita, Oliver Fiehn
PMID29176591
RÉSUMÉ
Novel metabolites distinct from canonical pathways can be identified through the integration of three cheminformatics tools: BinVestigate, which queries the BinBase gas chromatography-mass spectrometry (GC-MS) metabolome database to match unknowns with biological metadata across over 110,000 samples; MS-DIAL 2.0, a software tool for chromatographic deconvolution of high-resolution GC-MS or liquid chromatography-mass spectrometry (LC-MS); and MS-FINDER 2.0, a structure-elucidation program that uses a combination of 14 metabolome databases in addition to an enzyme promiscuity library. We showcase our workflow by annotating N-methyl-uridine monophosphate (UMP), lysomonogalactosyl-monopalmitin, N-methylalanine, and two propofol derivatives.
MATÉRIAUX