Abstract
Liquid chromatography–mass spectrometry (LC-MS) based nontargeted metabolomics has been applied to a wide range of biological samples and can provide information on thousands of compounds. However, reliable identification of the compounds remains a challenge affecting result interpretation. In this protocol, we describe comparable yeast cell and whole blood metabolome sample preparation for extracting similar compound groups, and we present a LC-MS method using the all ion fragmentation (AIF) approach for the purposes of increasing accuracy in metabolite annotation. Our method enables database-dependent targeted as well as nontargeted metabolomics analysis from the same data acquisition, while simultaneously improving the accuracy in metabolite identification to increase the quality of the resulting biological information.
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- ACN:
-
Acetonitrile
- AIF:
-
All ion fragmentation
- AM:
-
Accurate mass
- CID:
-
Collision induced dissociation
- EIC:
-
Extracted ion chromatogram
- HILIC:
-
Hydrophilic interaction liquid chromatography
- LC-MS:
-
Liquid chromatography–mass spectrometry
- MeOH:
-
Methanol
- MS/MS:
-
Tandem mass spectrometry
- RT:
-
Retention time
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Acknowledgments
We acknowledge the support of the Gunma University Initiative for Advanced Research (GIAR). This work was supported in part by The Environment Research and Technology Development Fund (ERTDF) (Grant No 5-1752). CEW was supported by the Swedish Heart Lung Foundation (HLF 20150640).
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Chaleckis, R., Ohashi, K., Meister, I., Naz, S., Wheelock, C.E. (2019). Metabolomic Analysis of Yeast and Human Cells: Latest Advances and Challenges. In: Oliver, S.G., Castrillo, J.I. (eds) Yeast Systems Biology. Methods in Molecular Biology, vol 2049. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9736-7_14
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DOI: https://doi.org/10.1007/978-1-4939-9736-7_14
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