FRAGMENTS OF RETINOIC ACID-RELATED ORPHANIC RECEPTORS (ROR) CONTAINING THE LIGANDEN BINDINGOMAINS (LBD), CRYSTAL STRUCTURE OF THE LBD OF ROR-BETA AND ITS USES

摘要

The invention relates to polypeptides derived from the retinoic acid-related orphan receptor (ROR) in mammals, characterized in that they are delimited in their N-terminal extremity by an amino-acid located between positions 1 to 209, and in their C-terminal extremity by an amino-acid located between positions 450 to 452 of the rat RORbeta, alpha, or gamma, or by an amino-acid located at corresponding positions in nuclear receptor ROR of other subtypes than alpha, beta and gamma, and/or of the other mammals. The invention also relates to the use of these polypeptides, or of the molecular complexes or the crystals containing them, for carrying out:-a process for the screening of a ROR-LBD ligand which is an agonist, or an antagonist of said receptor,-or a process for the analysis of the tridimensional structure of the complexes formed with said polypeptides, molecular complexes or crystals and a particular compound.