si_0748 Transcription_elongation_factors,_archaeal NusA protein homolog, archaeal si_0748 Transcription_elongation_factors,_archaeal NusA protein homolog 2, archaeal si_0748 Transcription_elongation_factors,_archaeal Putative transcription antitermination protein NusG si_0748 Transcription_elongation_factors,_archaeal Transcription factor S si_0748 Transcription_elongation_factors,_archaeal Transcription factor S-related protein 1 si_0748 Transcription_elongation_factors,_archaeal Transcription factor S-related protein 2 si_0748 Transcription_elongation_factors,_archaeal Transcription factor S-related protein 3