>tr|D3H0B6|D3H0B6_ECO44 Nickel-responsive regulator OS=Escherichia coli O44:H18 GN=nikR MQRVTITLDDDLLETLDSLSQRRGYNNRSEAIRDILRSALAQEATQQHGTQGFAVLSYVY EHEKRDLASRIVSTQHHHHDLSVATLHVHINHDDCLEIAVLKGDMGDVQHFADDVIAQRG VRHGHLQCLPKED