Abstract

Quick Direct-method Controlled (QDC) is a stochastic simulator based on the direct method version of Gillespie’s Stochastic Simulation Algorithm (SSA). It has been specifically designed to simulate experiments performed on metabolic networks, when external operators can act on the system, modifying its spontaneous behaviour. Users of QDC can simulate different experimental controls: i.e. , add or remove chemical species at a given time; change the rate of a reaction at a given moment; and describe reactions with complex stoichiometry that take place once the stoichiometric condition is verified (here called immediate reactions). Moreover, even though QDC is not designed to manage compartments, it can simulate up-take and excretion reactions. QDC represents a useful tool for the specific field of interest thanks to its computational performances and simple input language . Supplementary files

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