All data here and in subsequent figures are presented as the means of at least two independent experiments. RNA-Seq data are shown; % maximal expression relative to the codY null mutant (SRB372, None) is plotted across strains producing varying amounts of CodY regulatory activity: CodYWT, SRB337; CodYR61K, SRB506; CodYR61H, SRB623; CodYR61E, SRB577; CodYG129D, SRB493. In each panel, genes for nutrient transport are more sensitive to changes in CodY activity and reach 100% prior to genes for nutrient biosynthesis. A. CodY-repressed genes coding for the uptake (brnQ2, QV15_01265) and synthesis (ilvD) of ILV. B. CodY-repressed genes coding for the uptake (proposed histidine transporter, QV15_01335) and synthesis (hisB) of histidine. C. CodY-repressed genes coding for the uptake (metNIQ1 [QV15_01935-01945], metNIQ2 [QV15_04055-04065]) and synthesis (metE) of methionine.