>tr|F4UZ09|F4UZ09_ECOLX Transcription antitermination protein NusB OS=Escherichia coli TA280 GN=nusB MKPAARRRARECAVQALYSWQLSQNDIADVEYQFLAEQDVKDVDVLYFRELLAGVATNTA YLDGLMKPYLSRLLEELGQVEKAVLRIALYELSKRSDVPYKVAINEAIELAKSFGAEDSH KFVNGVLDKAAPVIRPNKK