Equivalence of metabolite fragments and flow analysis of isotopomer distributions for flux estimation

Ari Rantanen, Hannu Maaheimo, Esa Pitkänen, Juho Rousu, Esko Ukkonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    1 Citation (Scopus)


    The most accurate estimates of the activity of metabolic pathways are obtained by conducting isotopomer tracer experiments. The success of this method, however, is intimately dependent on the quality and amount of data on isotopomer distributions of intermediate metabolites. In this paper we present a novel method for discovering sets of metabolite fragments that always have identical isotopomer distributions, regardless of the velocities of the reactions in the metabolic network. We outline several applications of this equivalence concept, including improved propagation of measurements, experiment planning and consistency checking of metabolic network. Our computational experiments in measurement propagation indicate that the improvement via the use of this technique may be substantial.
    Original languageEnglish
    Title of host publicationTransactions on Computational Systems Biology VI
    EditorsCorrado Priami, Gordon Plotkin
    Place of PublicationBerlin - Heidelberg
    ISBN (Electronic)978-3-540-46236-1
    ISBN (Print)978-3-540-45779-4
    Publication statusPublished - 2006
    MoE publication typeA4 Article in a conference publication

    Publication series

    SeriesTransactions on Computational Systems Biology
    SeriesLecture Notes in Computer Science


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