>sp|B7NFY7|LEXA_ECOLU LexA repressor OS=Escherichia coli O17:K52:H18 GN=lexA MKALTARQQEVFDLIRDHISQTGMPPTRAEIAQRLGFRSPNAAEEHLKALARKGVIEIVS GASRGIRLLQEEEEGLPLVGRVAAGEPLLAQQHIEGHYQVDPSLFKPNADFLLRVSGMSM KDIGIMDGDLLAVHKTQDVRNGQVVVARIDDEVTVKRLKKQGNKVELLPENSEFKPIVVD LRQQSFTIEGLAVGVIRNGDWL