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Reporter assays examining transcriptional activation of nagR2 in the small gene cluster of P. naphthalenivorans strain CJ2. Shown are β-galactosidase activities (Miller units) from the nagR2-ORF2::lacZ transcriptional fusion in cells grown in MSB liquid media containing naphthalene crystals, salicylate, or gentisate (2.5 mM). Mean values for three independent cultures are shown with standard deviation.
