Fig. 8
From: Isolation and identification of a TetR family protein that regulates the biodesulfurization operon
a Representative figure of the different deletion derivatives of the 385 bp dsz promoter. b Graph showing luciferase assay in recombinant E. coli BL21(DE3) pLysS harbouring full length promoter (pTB2) or deletions of promoter (pTB4–7) along with plasmid pHYBP109 (light grey bar) and in the presence of the TetR family transcription regulator (dark grey bars). Plasmid pTB2 harbour full length 385 bp promoter. Plasmid pTB4, 5, 6 and 7 contain 315 bp, 235 bp, 151 bp and 63 bp promoter fragments. Determination of minimal promoter activity using luciferase assay is represented as inset of the graph