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Table 1 Regulation of marR-lacZ by MarR and MprA

From: The MarR Repressor of the Multiple Antibiotic Resistance (mar) Operon in Escherichia coli: Prototypic Member of a Family of Bacterial Regulatory Proteins Involved in Sensing Phenolic Compounds

   β-Galactosidase Activity Following Induction with:
Plasmid Backgrounda No Addition SALb
None WT 15 300
None Δmar 420 730
pmarR Δmar 5 150
pmprA Δmar 10 250
  1. aAll experiments were performed in strain B318 except for the first entry, which was in an isogenic strain containing a wild-type mar locus.
  2. bSAL, sodium salicylate.