Architecture of the RNA polymerase-Spt4/5 complex and basis of universal transcription processivity.
Martinez-Rucobo, F.W., Sainsbury, S., Cheung, A.C., Cramer, P.(2011) EMBO J 30: 1302-1310
- PubMed: 21386817 
- DOI: 10.1038/emboj.2011.64
- Primary Citation of Related Structures:  
3QQC - PubMed Abstract: 
Related RNA polymerases (RNAPs) carry out cellular gene transcription in all three kingdoms of life. The universal conservation of the transcription machinery extends to a single RNAP-associated factor, Spt5 (or NusG in bacteria), which renders RNAP processive and may have arisen early to permit evolution of long genes ...