>tr|A0A3Y2SXU1|A0A3Y2SXU1_SALET Transcription antitermination protein NusB OS=Salmonella enterica I GN=nusB MKPAARRRARECAVQALYSWQLSQNDIADVEYQFLAEQDVKDVDVLYFRELLSGVATNSA YLDGLMKPYLSRLLEELGQVEKAVLRIALFELSKRSDVPYKVAINEAIELAKTFGAEDSH KFVNGVLDKAAPVIRPNKK