Model of the regulation of carbon catabolic genes by GntR1 in C. glutamicum. Metabolic pathways and genes activated by GntR1 are in red, while blue indicates repression. Abbreviations: G6P, glucose 6-phosphate; 6PGL, 6-phospho glucono 1,5-lactone; 6PG, 6-phospho gluconate; Ru5P, ribulose 5-phosphate; Xu5P, xylulose 5-phosphate; R5P, ribose 5-phosphate; GA3P, glyceraldehyde 3-phosphate; S7P, sedoheptulose 7-phosphate; F6P, fructose 6-phosphate; E4P, erythrose 4-phosphate.