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. 2019 May 2;4(2):99–106. doi: 10.1016/j.synbio.2019.04.002

Fig. 7.

Fig. 7

Capacity of UP elements to modulate expression levels across multiple rRNA core promoters. Fluorescence levels of medium, medium-high, and high expression-modulating UP elements upstream of variable rRNA core promoters. rrnD, rrnA, and rrnH core promoter strains shown in blue, green, and orange, respectively. Negative control, no-promoter no-UP element pZE, shown in grey. Error bars represent standard deviation of biological triplicates. All samples cultured and measured in exponential phase same-day for accuracy of comparison.