>tr|A0A4P7TSQ8|A0A4P7TSQ8_SHIFM Transcription antitermination protein NusB OS=Shigella flexneri serotype 5a GN=nusB MKPAARRRARECAVQALYSWQLSQNDIADVEYQFLAEQDVKDVDVLYFRELLAGVATNTA YLDGLMKPYLSRLLEELGQVEKAVLRIALYELSKRSDVPYKVAINEAIELAKSFGAEDSH KFVNGVLDKAAPVIRPNKK