Fig. 3

Schematic representing regulatory networks for the galactose-inducible promoter (P _GAL1 ; a) and GFP fluorescence levels in gal80Δ background strains (b) with the yEGFP gene driven by P _TEF1 (strain G89J3), P _GAL1 (strain GB5J3), P _GAL10 (strain GB6J3), P _GAL2 (strain GQ3J3) and P _GAL7 (strain GQ4J3). Cultures were grown on 20 g L⁻¹ glucose. GFP fluorescence is expressed as percentage of exponential-phase auto-fluorescence of the reference strain (GH4J3). The growth curve (OD₆₀₀) for GH4J3 is shown. Mean values ± standard deviations are shown (N = 2)