Fig. 2From: Resource constrained flux balance analysis predicts selective pressure on the global structure of metabolic networksToy-model. The universe of metabolic reactions for a simple toy-model containing 12 metabolites including two extracellular substrates S1 and S2 and 14 reactions. A fluctuating environment is generated by shuttling between the two alternative substrates, S1 and S2. The objective function is to maximize the biomass production rate averaged over all environmental conditionsBack to article page