The four reporter plasmids were transferred to the wildtype strain containing the CggR (R250A) under the control of the PTEFmut7. The strength of the four promoters was assessed by quantifying YFP (FL1) and mCherry (FL3) fluorescence in exponentially growing wildtype cells in minimal medium with 10 g l-1 glucose. The FL1 and FL3 fluorescence shown is the non-background corrected median of 100 000 cell events. The non-FL control is the signal from a wildtype strain grown under the same conditions. The background fluorescence, assessed by the wildtype harboring the YCplac33 plasmid, was substracted from FL1 and FL3. The final reporter activity is the ratio of the background-corrected YFP and mCherry values. Error bars represent the standard deviation of three independently determined ratios from three replicate experiments. 