>sp|B7NEV3|RPOZ_ECOLU DNA-directed RNA polymerase subunit omega OS=Escherichia coli O17:K52:H18 GN=rpoZ MARVTVQDAVEKIGNRFDLVLVAARRARQMQVGGKDPLVPEENDKTTVIALREIEEGLIN NQILDVRERQEQQEQEAAELQAVTAIAEGRR