>sp|A0Q2U4|REX_CLONN Redox-sensing transcriptional repressor Rex OS=Clostridium novyi GN=rex MEKKRNISMAVIRRLPKYYRYLAELMDNDVDRISSKELSEKIGFTASQIRQDLNNFGDFG QQGYGYNVKDLYNEIRSILGLDENYNIAIIGAGNIGQAIANYTNFDKMGFNLKGIFDVNP KLLGLKIRDVEIRDIDQLESFLQEEKIHIGVICVTKSNAQDVCNTLIKNGVKGIWNFAPI DLNGADNVVIENVHLSESLLTLTYLLNGFN