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Ion mobility collision cross-section atlas for known and unknown metabolite annotation in untargeted metabolomics

Open access
Zhou, Zhiwei, Luo, Mingdu, Chen, Xi, Yin, Yandong, Xiong, Xin, Wang, Ruohong, Zhu, Zheng-Jiang·2020·Nature Communications

Abstract

The metabolome includes not just known but also unknown metabolites; however, metabolite annotation remains the bottleneck in untargeted metabolomics. Ion mobility – mass spectrometry (IM-MS) has emerged as a promising technology by providing multi-dimensional characterizations of metabolites. Here, we curate an ion mobility CCS atlas, namely AllCCS, and develop an integrated strategy for metabolite annotation using known or unknown chemical structures. The AllCCS atlas covers vast chemical structures with >5000 experimental CCS records and ~12 million calculated CCS values for >1.6 million small molecules. We demonstrate the high accuracy and wide applicability of AllCCS with medium relative errors of 0.5–2% for a broad spectrum of small molecules. AllCCS combined with in silico MS/MS spectra facilitates multi-dimensional match and substantially improves the accuracy and coverage of both known and unknown metabolite annotation from biological samples. Together, AllCCS is a versatile resource that enables confident metabolite annotation, revealing comprehensive chemical and metabolic insights towards biological processes.

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Metadata

Authors
Zhou, Z., Luo, M., Chen, X., Yin, Y., Xiong, X., Wang, R., & Zhu, Z.-J.
Venue
Nature Communications
Published
2020-08-28
Volume
11
Issue
1
Pages
4334-4334
ISSN
2041-1723 (ISSN-L)
OpenAlex
W3082061703
Cited by
290
References
4
FWCI
11.82
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Ion mobility collision cross-section atlas for known and unknown metabolite annotation in untargeted metabolomics. https://app.cochat.ai/papers/10.1038/s41467-020-18171-8
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Zhou, Z., Luo, M., Chen, X., Yin, Y., Xiong, X., Wang, R., & Zhu, Z.-J. (2020). Ion mobility collision cross-section atlas for known and unknown metabolite annotation in untargeted metabolomics. Nature Communications. https://doi.org/10.1038/s41467-020-18171-8

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