Involved in the transcription termination process (By similarity). MSRKESRVQAFQTLFQLEMKDSDLTINEAISFIKDDNPDLDFEFIHWLVSGVKDHEPVLDETISPYLKDWTIARLLKTDRIILRMATYEILHSDTPAKVVMNEAVELTKQFSDDDHYKFINGVLSNIKK NUSB_STAA9 SaurJH9_1583 nusB N utilization substance protein B homolog 129