The wHTH DNA-binding domain of ZitR_MG.

The structure of holo-ZitR_MG protein (this study, 6FI9, protomer A is shown as a green ribbon) and that of OhrR-ohrA complex (1Z9C, OhrR protomer A is shown as an orange ribbon and ohrA DNA colored in light-orange) have been superimposed, and a zoom on the Arg94 of OhrR wHTH DNA-binding domain is shown. Residues aligned between ZitR_MG and OhrR are represented as ball-and-sticks with N colored in blue and O in red. Fully and moderately accessible residues are labelled in dark and light color respectively.