Central carbon metabolic flux patterns under glucose‐limited and glucose‐excess conditions. Central carbon metabolic flux patterns under glucose‐limited.

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Central carbon metabolic flux patterns under glucose‐limited and glucose‐excess conditions. Central carbon metabolic flux patterns under glucose‐limited and glucose‐excess conditions. (A–C) Relative fluxes from 13C experiments are plotted versus the fluxes predicted by the ME‐Model. (A, B) Comparison of nutrient‐limited model solutions with chemostat culture conditions and (C) comparison of the batch ME‐Model solution with batch culture data. All simulations and experiments correspond to growth in glucose minimal media. Fluxes are normalized so that glucose uptake is 100. Insets show the main flux changes under increasing glucose concentrations. The only model parameter that is modulated is the glucose uptake rate bound. Data were obtained from Nanchen et al (2006) and Schuetz et al (2007). The ME‐Model flux for the reaction ‘pyk’ is taken to include phosphoenolpyruvate (PEP) to pyruvate (PYR) conversion via the phosphotransferase system (PTS). Flux splits shown as insets were computed using the ME‐Model. The percentages indicate the percent carbon (Glucose) converted to CO2 (for branch labeled ‘TCA’), acetate, and biomass. Both the TCA and acetate branches contribute to ATP production. The total mmol ATP per gDW biomass produced is indicated. Edward J O'Brien et al. Mol Syst Biol 2013;9:693 © as stated in the article, figure or figure legend