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© Oxford University Press

Refined algorithm and computer program for calculating all non–negative fluxes admissible in steady states of biochemical reaction systems with or without some flux rates fixed

R. Schuster 1,2 and S. Schuster 1

1Université Bordeaus II, Département de Biochimie Médicale et Biologie Moléculaire 146 rue Léo Saignat, 33076 Bordeaux Cedex, France

2Humboldt-Universität zu Berlin, Institut für Biochentie, Hessische Sinisse 3–4, D-O-1040 Berlin, Germany (address for correspondence).

A refined algorithm together with a computer procedure for determining the complete set of non–negative, steady–state fluxes in biochemical reaction systems of any complexily, with or without some flux rates fixed, is given. It is shown that this set is a convex polyhedron, which may or may not be bounded. The algorithm is illustrated by several examples; one of them concerns intermediary metabolism. A computer cade in standard C is presented.

Received on June 3, 1992; accepted on August 8, 1992

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