AStream: an R package for annotating LC/MS metabolomic data |
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Authors: | Alonso Arnald Julià Antonio Beltran Antoni Vinaixa Maria Díaz Marta Ibañez Lourdes Correig Xavier Marsal Sara |
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Affiliation: | Grup de Recerca de Reumatologia, Institut de Recerca de l'Hospital Universitari Vall d'Hebrón (Univ. Autònoma de Barcelona), Barcelona, Spain. |
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Abstract: | AStream, an R-statistical software package for the curation and identification of feature peaks extracted from liquid chromatography mass spectrometry (LC/MS) metabolomics data, is described. AStream detects isotopic, fragment and adduct patterns by identifying feature pairs that fulfill expected relational patterns. Data reduction by AStream allows compounds to be identified reliably and subsequently linked to metabolite databases. AStream provides researchers with a fast, reliable tool for summarizing metabolomic data, notably reducing curation time and increasing consistency of results. AVAILABILITY: The AStream R package and a study example can be freely accessed at http://www.urr.cat/AStream/AStream.html. |
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