Fig. 2
From: Isolation and identification of a TetR family protein that regulates the biodesulfurization operon
Biodesulfurization activity in E. coli BL21(DE3) pLysS when cloned proteins is supplied in trans via plasmid as demonstrated by luciferase assay. a Schematic diagram of the assay; b Graph showing that there is no increase in activity of the dsz operon, rather they are slightly reduced. The grey bar indicates the uninduced sample and the black bar indicates the luminometer reading when the cells are induced with 0.2 mM IPTG. The experiment was performed at OD600 ~ 1 in triplicates