Fig. 2From: Regulating the T7 RNA polymerase expression in E. coli BL21 (DE3) to provide more host options for recombinant protein productionExpression of GDH-EGFP in different strains. A Fluorescence intensity of GDH-EGFP in the whole fermentation process. BÂ The percentage of plasmid-carrying cells of BL21 (DE3), BL21 (DE3::ara), BL21 (DE3::rha) and BL21 (DE3::tet) was tested during the entire fermentation period. Values and error bars represent the means and the deviations from triplicate experiments. GDHÂ glucose dehydrogenaseBack to article page