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CONTROL: software for the analysis of the control of metabolic networks
Authors:Letellier, Thierry   Reder, Christine   Mazat, Jean-Pierre
Affiliation:Institute de Biochimie Cellulaire et Neurochimie-CNRS and Université Bordeaux II, 146 rue Léo-Saigant, 33076 Bordeaux-Cedex
1 Mathématiques et Informatique, Université Bordeaux 1 33405 Talence-Cedex, France
Abstract:The program CONTROL is based on metabolic control theory anduses the method developed by Reder (1988). In this theory, twosets of parameters are defined in the vicinity of a steady-state:the elasticity coefficients which describe the local behaviourof the isolated enzymes, and the control coefficients whichexpress the response of the whole metabolic network to perturbationsat a given step. The theory shows that relationships exist betweenthe control coefficients (summation relationships or structuralrelationships) and also between the two types of coefficients(control and elasticity coefficients: connectivity relationships).The program CONTROL is divided into two parts (sub-menus). Thefirst one calculates all the control coefficients (flux andconcentrations) of a metabolic network from the elasticity coefficients.Using the second menu, the symbolic relationships are obtainedbetween the control coefficients (summation relationships) andbetween the control coefficients and the elasticity coefficients(connectivity relationships). These two sub-menus can be appliedindependently to any metabolic network (to date limited to 19steps and 19 metabolites).
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