期刊
ANALYTICAL CHEMISTRY
卷 91, 期 3, 页码 1768-1772出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.8b04096
关键词
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资金
- IMPRS-PMPG program
- Max Planck Society
A major bottleneck of mass spectrometric metabolomic analysis is still the rapid detection and annotation of unknown m/z features across biological matrices. This kind of analysis is especially cumbersome for complex samples with hundreds to thousands of unknown features. Traditionally, the annotation was done manually imposing constraints in reproducibility and automatization. Furthermore, different analysis tools are typically used at different steps which requires parsing of data and changing of environments. We present here MetNet, implemented in the R programming language and available as an open-source package via the Bioconductor project. MetNet, which is compatible with the output of the xcms/CAMERA suite, uses the data-rich output of mass spectrometry metabolomics to putatively link features on their relation to other features in the data set. MetNet uses both structural and quantitative information on metabolomics data for network inference and enables the annotation of unknown analytes.
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