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Positive Feedback and Noise Activate the Stringent Response Regulator Rel in Mycobacteria
Figure 7
GFP distributions as a function of tetracycline inducer concentration.
The inducer activates the transcription of the ppk1 gene. The concentrations of tetracycline (nM) are indicated in the histograms.
doi: https://doi.org/10.1371/journal.pone.0001771.g007