FIG. 2.

Locations of the MarR superrepressor mutations identified in this study. The designations in parentheses consist of the single-letter code for the wild-type residue followed by the location of that amino acid in the full-length MarR and the single-letter code for the mutation isolated at this point. The numbers in parentheses represent the number of independent isolates at that site. The cross-hatched box indicates the region of amino acid homology among the MarR family members.