FIG. 1.

Multiple alignment of BldR and characterized MarR family members. Proteins are BldR (Sso1352) from S. solfataricus, SlyA from Salmonella enterica serovar Typhimurium, PecS from Erwinia chrysantemi, MarR from E. coli, HucR from Deinococcus radiodurans, and MexR from Pseudomonas aeruginosa. The alignment was generated using Clustal W, and the numbering is based upon the HucR sequence. The winged helix-turn-helix DNA binding motif predicted for BldR is also represented: alfa-helices are gray bars, beta sheets are black arrows, and turns are black lines.