Correlation between Ceftriaxone Resistance of Salmonella enterica Serovar Typhimurium and Expression of Outer Membrane Proteins OmpW and Ail/OmpX-Like Protein Which Are Regulated by BaeR of a Two-Component System

摘要

Mutant 7F2 of Salmonella enterica serovar Typhimurium has a transposon inserted in the regulator gene baeR of a two-component system and showed a more-than-fourfold reduction in resistance to ceftriaxone. Complementation analysis suggested an association among the outer membrane proteins OmpW and STM3031, ceftriaxone resistance, and baeR.