Coactivator binding promotes the specific interaction between ligand and the pregnane X receptor
Watkins, R.E., Davis-Searles, P.R., Lambert, M.H., Redinbo, M.R.(2003) J Mol Biol 331: 815-828
- PubMed: 12909012 
- DOI: 10.1016/s0022-2836(03)00795-2
- Primary Citation of Related Structures:  
1NRL - PubMed Abstract: 
The pregnane X receptor (PXR) detects the presence of a wide variety of endogenous and xenobiotic compounds, and is a master regulator of the expression of genes central to drug metabolism and excretion. We present the 2.0A crystal structure of the human PXR ligand-binding domain (LBD) in complex with the cholesterol-lowering compound SR12813 and a 25 amino acid residue fragment of the human steroid receptor coactivator-1 (SRC-1) containing one LXXLL motif ...