Fig. 4
From: CtcS, a MarR family regulator, regulates chlortetracycline biosynthesis
Transcriptional analysis of genes in the WT and ∆ctcS strains. a Organization of the operons encoded by ctc cluster. The detected transcription units were marked with arabic numerals. b RT-qPCR analysis of transcription levels in ∆ctcS mutant and WT strain. The relative transcription levels of each gene were obtained after normalization against the internal reference hrdB. Error bars showed the standard deviation of three independent experiments