Figure 4
From: Characterization of the hupSL promoter activity in Nostoc punctiformeATCC 29133
Expression from the hupSL promoter deletions. Measurements of GFP fluorescence intensity in living cells grown under nitrogen fixing conditions. Nostoc punctiforme ATCC 29133 cells were transformed with vector constructs containing truncated versions of the hupSL-promoter (A-E) fused to the reporter gene gfp (see Figs. 1 and 2). All values are normalised to the expression from the promoter less reporter vector, pSUN202 (negative control) and the GFP intensity is shown as relative intensity compared to the negative control. All measurements were performed in triplicates.