Aromatic Acid Metabolites of Escherichia coli K-12 Can Induce the marRAB Operon

Authors

Lon Chubiz, University of Illinois at Urbana–Champaign
Christopher Rao, University of Illinois at Urbana–Champaign

Document Type

Article

Abstract

MarR is a key regulator of the marRAB operon involved in antibiotic resistance and solvent stress tolerance in Escherichia coli. We show that two metabolic intermediates, 2,3-dihydroxybenzoate and anthranilate, involved in enterobactin and tryptophan biosynthesis, respectively, can activate marRAB transcription. We also found that a third intermediate involved in ubiquinone biosynthesis, 4-hydroxybenzoate, activates marRAB transcription in the absence of TolC. Of the three, however, only 2,3-dihydroxybenzoate directly binds MarR and affects its activity.

Publication Date

September 2010

Publication Title

Journal of Bacteriology

Volume

192

Issue

18

First Page

4786

Last Page

4789

Comments

DOI: 10.1128/JB.00371-10

DOI

10.1128/JB.00371-10

Recommended Citation

Chubiz, Lon and Rao, Christopher, "Aromatic Acid Metabolites of Escherichia coli K-12 Can Induce the marRAB Operon" (2010). Biology Department Faculty Works. 107.
DOI: https://doi.org/10.1128/JB.00371-10
Available at: https://irl.umsl.edu/biology-faculty/107