Figure 1
From: Production of recombinant protein by a novel oxygen-induced system in Escherichia coli
E. coli AB1157 growth and GFP production: A, B pAB49 ( soxS promoter induced by increasing dO 2 up to 300% ) C, D pAB828 ( lac promoter) and pAB43 (promoter-less plasmid). All cultures were controlled at 30% of dO2 except those labeled as 300% or 0%. The arrow indicated the time when oxygen or IPTG were added to the culture, the error bars show the standard deviation of experiments performed in triplicate.