>tr|A0A509C0V7|A0A509C0V7_9ENTR Transcription antitermination protein NusB OS=Salmonella sp. NCTC 3046 GN=nusB MKPAARRRARECAVQALYSWQLSQNDIADVEYQFLAEQDVKDVDVLYFRELLSGVATNSA YLDGLMKPYLSRLLEELGQVEKAVLRIALFELSKRSDVPYKVAINEAIELAKTFGAEDSH KFVNGVLDKAAPVIRPNKK