Experimental Data Snapshot
(2003) J Biological Chem 278: 22748-22754
Here we describe the three-dimensional crystal structures of human glucocorticoid receptor ligand-binding domain (GR-LBD) in complex with the antagonist RU-486 at 2.3 A resolution and with the agonist dexamethasone ligand together with a coactivator peptide at 2.8 A. The RU-486 structure was solved in several different crystal forms, two with helix 12 intact (GR1 and GR3) and one with a protease-digested C terminus (GR2). In GR1, part of helix 12 is in a position that covers the co-activator pocket, whereas in the GR3, domain swapping is seen between the crystallographically identical subunits in the GR dimer. An arm consisting of the end of helix 11 and beyond stretches out from one molecule, and helix 12 binds to the other LBD, partly blocking the coactivator pocket of that molecule. This type of GR-LBD dimer has not been described before but might be an artifact from crystallization. Furthermore, the subunits of the GR3 dimers are covalently connected via a disulfide bond between the Cys-736 residues in the two molecules. All three RU-486 GR-LBD structures show that GR has a very flexible region between the end of helix 11 and the end of helix 12.
 Explore in 3D: Structure |Sequence Annotations |Electron Density |Validation Report |Ligand Interaction (486)
Biological assembly 1 assigned by authors.
 Explore in 3D: Structure |Sequence Annotations |Electron Density |Validation Report |Ligand Interaction (486)
Biological assembly 2 generated by PISA,PQS (software)
Macromolecule Content 
Entity ID: 1 | |||||
|---|---|---|---|---|---|
| Molecule | Chains | Sequence Length | Organism | Details | Image |
| GLUCOCORTICOID RECEPTOR | 280 | Homo sapiens | Mutation(s): 3  | ![]() | |
UniProt & NIH Common Fund Data Resources | |||||
Find proteins for P04150 (Homo sapiens) Explore P04150  Go to UniProtKB:  P04150 | |||||
PHAROS:  P04150 GTEx:  ENSG00000113580  | |||||
Entity Groups  | |||||
| Sequence Clusters | 30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity | ||||
| UniProt Group | P04150 | ||||
Sequence AnnotationsExpand | |||||
| |||||
| Ligands 2 Unique | |||||
|---|---|---|---|---|---|
| ID | Chains | Name / Formula / InChI Key | 2D Diagram | 3D Interactions | |
| 486 Query on 486 Download Ideal Coordinates CCD File  | B [auth A] | 11-(4-DIMETHYLAMINO-PHENYL)-17-HYDROXY-13-METHYL-17-PROP-1-YNYL-1,2,6,7,8,11,12,13,14,15,16,17-DODEC AHYDRO-CYCLOPENTA[A]PHENANTHREN-3-ONE C29 H35 N O2 VKHAHZOOUSRJNA-GCNJZUOMSA-N | |||
| HEZ Query on HEZ Download Ideal Coordinates CCD File  | C [auth A], D [auth A], E [auth A] | HEXANE-1,6-DIOL C6 H14 O2 XXMIOPMDWAUFGU-UHFFFAOYSA-N | |||
| Length ( Å ) | Angle ( ˚ ) |
|---|---|
| a = 74.859 | α = 90 |
| b = 109.764 | β = 90 |
| c = 39.261 | γ = 90 |
| Software Name | Purpose |
|---|---|
| MOSFLM | data reduction |
| SCALA | data scaling |
| MOLREP | phasing |
| REFMAC | refinement |
| CCP4 | data scaling |
RCSB PDB Core Operations are funded by theU.S. National Science Foundation (DBI-2321666), theUS Department of Energy (DE-SC0019749), and theNational Cancer Institute,National Institute of Allergy and Infectious Diseases, andNational Institute of General Medical Sciences of theNational Institutes of Health under grant R01GM157729.