>tr|A0A2S1A697|A0A2S1A697_9BACI Redox-sensing transcriptional repressor Rex OS=Bacillus cytotoxicus GN=rex MDQQKIPQATAKRLPLYYRFIQNLSLSGKQRVSSAELSEAVKVDSATIRRDFSYFGALGK KGYGYNVNYLLSFFRETLDQDDITRVALIGVGNLGTAFLHYNFTKNNNTKIEMAFDVDEE KVGKEIGGIPVYHLDELEERLTNDIQVAILTVPANVAQAVADRLAYTSVHGILNFTPARL NVSEKIRIHHIDLAVELQTLVYFLKNYPQ