>tr|Q7PAV3|Q7PAV3_RICS2 Transcription antitermination protein NusB OS=Rickettsia sibirica GN=nusB MSSNKINKKSIARIAAVQAIYQNILQNNDDMDDIMQNVLSFYQNNNSITDLPENLKISLS ISHFKMLVKSVFENIHKLDEIIDNHLTNDKDPAHMPILLRALLRVSICELLFCPTTPAKV VINEYTDIANDMLNEHEIGFVNSVLDKIAKEHIRLI