Transcription antitermination protein, NusG, bacteria, conserved site Bacterial transcription antitermination protein, NusG, is a component of thetranscription complex and interacts with the termination factor Rho and RNApolymerase [<cite idref="PUB00001911"/>, <cite idref="PUB00002759"/>]. NusG is a bacterial transcriptional elongation factor involved in transcription termination and anti-termination [<cite idref="PUB00001884"/>].