Equivalence of branched and unbranched Michaelian pathways concerning periodic signal transmission |
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Authors: | Rodríguez Yoel Torralba Antonio S Montero Francisco |
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Affiliation: | (1) Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain |
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Abstract: | Sinusoidal oscillation transmission through branched metabolic pathways is studied. Two systems are analyzed, which are composed of two convergent reaction branches and differ in the length of one of them. Linear kinetics is assumed first. Michaelis-Menten enzymes are then considered by using previous results that suggest their behavior with respect to propagation of oscillations is close to linearity around the mean input flux. As a result, there exist ways to modulate the activity of the enzymes so that propagation is equivalent for branched and specific unbranched pathways. Cells may have taken advantage of such a possibility in cases where oscillations have a biological role. |
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Keywords: | damping factor linear systems metabolic networks nonlinear kinetics phase shift sinusoidal oscillations |
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