A solved three-dimensional crystal structure of a glucocorticord receptor (GR) α ligand binding domain polypeptide is disclosed, in the form of a crystalline glucocorticord receptor α ligand binding domain polypeptide in complex with the ligand fluticasone propionate (FP) and a peptide derived from the co-activator TIF2. The GR/FP/TIF2 structure includes an expanded binding pocket not seen in other GR structures. Methods of designing steroid and non-steroid modulators of the biological activity of GR and other nuclear receptors (NRs) are also disclosed. In another aspect of the present invention homology models of androgen receptor (AR), progesterone receptor (PR) and mineralcorticoid receptor (MR) are disclosed, as well as methods of forming homology models for other NRs. Methods of forming a soluble GR/FP/TIF2 complex are also disclosed.
本研究揭示了糖皮质激素受体(GR)α
配体结合域
多肽的三维晶体结构,该晶体结构是糖皮质激素受体α
配体结合域
多肽与
配体丙酸氟替卡松(FP)和来自共激活剂 TIF2 的
多肽的复合物。GR/FP/TIF2 结构包括一个扩大的结合口袋,这在其他 GR 结构中是看不到的。本发明还公开了设计 GR 和其他核受体(NRs)
生物活性的类
固醇和非类
固醇调节剂的方法。本发明的另一方面还公开了雄激素受体(AR)、
孕酮受体(PR)和矿皮质激素受体(MR)的同源模型,以及形成其他 NR 的同源模型的方法。还公开了形成可溶性 GR/FP/TIF2 复合物的方法。