>sp|A0AKH9|REX_LISW6 Redox-sensing transcriptional repressor Rex OS=Listeria welshimeri serovar 6b GN=rex MMEETTKIPQATAKRLPLYHRYLKYLDESGKERVSSAELSEAVKVDSATIRRDFSYFGAL GKKGYGYNVSYILDFFSKTLSQDKQTNVALIGVGNLGTALLHYNFMKNNNIKIVAAFDVD PAKVGSVQQDIPIYHLNDMEEIVRENGVEVVILTVPADEAQVTVDRLIEADVKGILNFTP ARISVPKQVRVHHIDLTTELQTLIYFLENYPAKTE