FIG. 4.

Fluxes through the futile cycle in the PEP-pyruvate-oxaloacetate triangle of wild type (A), ccpN mutant (B), ccpN gapB mutant (C), and ccpN pckA mutant (D). Fluxes are given in percentages of the glucose uptake rates that were for 10.6, 5.9, 6.4, and 9.8 mmol g⁻¹ h⁻¹, respectively.