>sp|A7ZVZ8|KEFF_ECOHS Glutathione-regulated potassium-efflux system ancillary protein KefF OS=Escherichia coli O9:H4 GN=kefF MILIIYAHPYPHHSHANKRMLEQARTLEGVEIRSLYQLYPDFNIDIAAEQEALSRADLIV WQHPMQWYSIPPLLKLWIDKVFSHGWAYGHGGTALHGKHLLWAVTTGGGESHFEIGAHPG FDVLSQPLQATAIYCGLNWLPPFAMHCTFICDDETLEGQARHYKQRLLEWQEAHHG