the 9 bp deletion in the promoter region of mutant ramA in fluoroquinolone-resistant Salmonella _ suggesting that it might be the 51 binding site for a local repressor of RamA
RamR is a local repressor of ramA , and RamA are involved in AcrABmediated multidrug resistance in Salmonella .28 In this study , we investigated the roles of Salmonella multidrug efflux pumps in resistance to tigecycline and other glycylcyclines .