Fig. 6
From: CtcS, a MarR family regulator, regulates chlortetracycline biosynthesis
Derepression effect of TC and CTC. a EMSA analysis of the binding affinity of CtcS for ctcR-ctcS interaction fragment with the presence of CTC and TC, and the erythromycin (Ery) was used as control. b Schematic diagram of the CtcS-regulated expression of ctcR affected by biosynthesized molecules. The four fused hexagons denoted TC and CTC molecules, the large black arrow indicated the binding of CtcS with TC and CTC, and the curving black line indicated the movement of translated CtcS toward target DNA binding sites