Inventors:
Michael R. Downes - San Diego CA, US
Mark A. Verdicia - New York NY, US
Joseph P. Noel - San Diego CA, US
Ronald M. Evans - La Jolla CA, US
Lindsey J. Bowman - San Diego CA, US
Marianne Bowman - San Diego CA, US
Assignee:
The Salk Institute for Biological Studies - La Jolla CA
International Classification:
C07K 1/00, G06G 7/58, A01N 61/00
Abstract:
The present invention provides compositions comprising the ligand binding domain (LBD) of a farnesoid X receptor (FXR) in crystalline form. In alternative embodiments, the LBD of FXR is complexed with a ligand therefor. There are provided high resolution structures of FXR complexed with a novel high affinity agonist fexaramine. The discovered structure of a FXR LBD provides the first three-dimensional view of the structural basis for FXR ligand binding. The present invention further provides a computer for producing a time-dimensional representation of FXR or a complex thereof, and a computer for determining at least a portion of the structure coordinates of FXR or a complex thereof. The present invention further provides methods of using this structural information to predict molecules capable of binding to FXR; to identify compounds with agonist, antagonist or partial agonist activity for FXR; and to determine whether a test compound is capable of binding to the LBD of FXR. The present invention further provides compositions comprising compounds identified by such invention methods.