FIG 4.

Analyses of nanA, nagA, nanH, and nanR promoter activities in WT and ΔnanR C. glutamicum strains cultivated for 8 h in minimal medium with 0.3% (wt/vol) fructose, expressed as relative fluorescence of the GFP reporter upon expression of the gfp gene under the control of the nanA, nagA, nanH, or nanR promoter present in the plasmid pEPRI-PRnanA, pEPRI-PRnagAB, pEPRI-PRnanH, or pEPRI-PRnanH, respectively. As a control, relative fluorescence was measured for cells of C. glutamicum(pEPRI) and C. glutamicum ΔnanR(pEPRI) carrying the empty vector pEPRI. Data represent mean values and standard deviations of two independent measurements each from three independent cultivations.