FBrAtio predictions using the i CAC490 model given various levels of CoAT and AAD knockdown. Shown are predictions of growth (x10) (blue), acetone (cyan), butanol (red), and ethanol (green) during solventogenesis (SPF = 5). The following flux ratio constraints were applied: (i) f(rTHL):f(rAAD _1), (ii) f(rCoAT):f(rBHBD), (iii) f(rPTB):f(rAAD _2), and (iv) f(rAAD_3):f(rAAD _1). The following were held constant: (i) glucose uptake rate of , (ii) constraints listed in Table 1, (iii) f(rTHL):f(rPTA) = 2, (iv) f(CO
conversion) = 5, (v) f(rPFO):f(rLDH) = 10, and (vi) f(rCoAT, butyrate):f(rCoAT, acetate) = 0.63.