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Stability Analysis of a Metabolic Model with Sequential Feedback Inhibition

Abstract : This paper deals with the stability analysis of a simple metabolic system with feedback inhibition. The system is a sequence of monomolecular enzymatic reactions. The last metabolite acts as a feedback regulator for the first enzyme of the pathway. The enzymatic reactions of the pathway satisfy Michaelis-Menten kinetics. The inhibition is described by an hyperbolic model. Without inhibition, it is clear that the system is cooperative and has a single globally asymptotically stable equilibrium. But, in the common situation where there is inhibition, the system is no longer cooperative and the stability analysis is more intricate. In this paper we exhibit sufficient conditions on the kinetic parameters in order to guarantee that this simple metabolic system with inhibition still has a single globally asymptotically stable equilibrium.
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https://hal.inria.fr/hal-01091656
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Yacine Chitour, Frédéric Grognard, Georges Bastin. Stability Analysis of a Metabolic Model with Sequential Feedback Inhibition. Luca Benvenuti, Alberto De Santis, Lorenzo Farina. Positive Systems: Proceedings of the First Multidisciplinary International Symposium on Positive Systems: Theory and Applications (POSTA 2003), 294, Springer Berlin Heidelberg, pp.143-150, 2003, ⟨10.1007/978-3-540-44928-7_20⟩. ⟨hal-01091656⟩

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