The Structure of a Transcription Activation Sub-Complex Reveals How Sigma-70 is Recruited to PhoB Promoters
Blanco, A.G., Canals, A., Bernues, J., Sola, M., Coll, M.(2011) EMBO J 
- PubMed: 21829166 
- DOI: 10.1038/emboj.2011.271
- Primary Citation of Related Structures:  
3T72 - PubMed Abstract: 
PhoB is a two-component response regulator that activates transcription by interacting with the σ(70) subunit of the E. coli RNA polymerase in promoters in which the -35 σ(70)-recognition element is replaced by the pho box. The crystal structure of a transcription initiation subcomplex that includes the σ(4) domain of σ(70) fused with the RNA polymerase β subunit flap tip helix, the PhoB effector domain and the pho box DNA reveals how σ(4) recognizes the upstream pho box repeat ...