>sp|B7UM71|RPOZ_ECO27 DNA-directed RNA polymerase subunit omega OS=Escherichia coli O127:H6 GN=rpoZ MARVTVQDAVEKIGNRFDLVLVAARRARQMQVGGKDPLVPEENDKTTVIALREIEEGLIN NQILDVRERQEQQEQEAAELQAVTAIAEGRR