Figure 4From: Flux-sum analysis: a metabolite-centric approach for understanding the metabolic networkFlux-sum attenuation profile. The horizontal axis corresponds to the value of katt. The vertical axis corresponds to the biomass production normalized with respect to the basal biomass production. Profiles of essential metabolites intersect the origin and each could be classified as either type "AE", "BE" or "CE", with the suffix "E" indicating that the metabolite is essential.Back to article page