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Genetically regulated metabolic networks: Gale-Nikaido modules and differential inequalities

Abstract : We propose an approach to study static properties of metabolic networks with genetic regulation. We base our results on differential inequalities which are constraints on the values of the partial derivatives of the reaction rate functions. The approach uses an iterative elimination method for the steady state equations involving algebraic modules that satisfy the Gale-Nikaido global univalence property. The same method allows to find conditions for unique steady state. In the case of metabolic pathways, partial elimination of variables can produce several alternative models, allowing to compare steady state changes of metabolites with and without genetic regulation.
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Contributor : Anne SIEGEL Connect in order to contact the contributor
Submitted on : Sunday, November 21, 2010 - 6:13:07 PM
Last modification on : Wednesday, November 2, 2022 - 3:56:03 AM

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Ovidiu Radulescu, Anne Siegel, Elisabeth Pecou, Clément Chatelain, Sandrine Lagarrigue. Genetically regulated metabolic networks: Gale-Nikaido modules and differential inequalities. Transactions on Computational Systems Biology, 2011, Transactions on Computational Systems Biology XIII, 6575 (Lecture Notes in Computer Science 6575), pp.110-130. ⟨10.1007/978-3-642-19748-2_6⟩. ⟨inria-00538136⟩



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