Fig. 2

Comparison of model predictions to experimental values. S. marcescens iSR929 was used to simulate growth in multiple conditions. Actual and predicted flux rates are shown, and predicted fermentation product production rates are shown as ranges as determined by flux variability analysis. For each simulation, the boundary fluxes for growth rate, sugar uptake, acetic acid, 2,3-butanediol, succinic acid, ethanol were constrained to match the measured fluxes during a glucose, b N-acetylglucosamine, c glycerol conditions