>sp|C6C0U7|NIKR_MARSD Putative nickel-responsive regulator OS=Maridesulfovibrio salexigens GN=Desal_2992 MGKTIRFGVSLDSDLLEKFDKLCDEKSYQTRSEAIRDLIRNMLVEKEWDEADGQMAGTLS LVYDHHQSGLSQRLTELQHDSHDLIMSTLHVHLDHDNCLEVMVLKGDGKQIKELAHRLIS TKGVKHGKLGLTTTGEELV