2qr9

Crystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound

Method: X-RAY DIFFRACTION Dmax: 71.7 Å Quality: EXCELLENT

1. Protein Identity and Related Structures Protein Identity & Related Structures

Estrogen receptor

Homo sapiens

UniProt P03372

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 298–554 Chain B; UniProt 298–554 Fragment:Steroid-binding region, residues 298-554 Mutation:Y537S Nuclear receptor coactivator 2 × 2 (Q8BN74) HZ3 dimethyl (1R,4S)-5,6-bis(4-hydroxyphenyl)-7-oxabicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylate × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;0.1M Tris 8.5, 0.2M Magnesium Hexahydrate, 25% PEG3350, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.00 Å R-free 0.262

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

434 other PDB entries and 522 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ESR1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–258; UniProt 298–554 Author chain B; PDBConstruct 2–258; UniProt 298–554

Nuclear receptor coactivator 2

OrganismNot specified

UniProt Q8BN74

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain C; UniProt 686–698 Chain D; UniProt 686–698 Not recorded Estrogen receptor × 2 (P03372) HZ3 dimethyl (1R,4S)-5,6-bis(4-hydroxyphenyl)-7-oxabicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylate × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;0.1M Tris 8.5, 0.2M Magnesium Hexahydrate, 25% PEG3350, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.00 Å R-free 0.262

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

10 other PDB entries and 10 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q8BN74_MOUSE
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 1–13; UniProt 686–698 Author chain D; PDBConstruct 1–13; UniProt 686–698

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 2qr9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2qr9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2qr9
Deposition date deposition_date2007-07-27
Structure title titleCrystal Structure of the Estrogen Receptor Alpha Ligand Binding Domain Complexed with an Oxabicyclic Derivative Compound
Keywords keywords;Protein-Ligand Complex, DNA-binding, Lipid-binding, Metal-binding, Nucleus, Phosphorylation, Receptor, Steroid-binding, Transcription, Transcription regulation, Zinc-finger ;; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier23.48
Radius of gyration Rg (electron density) rg_electron22.29
Forward intensity I(0) i051410700.00
Molecular weight molecular_weight57611.0 kDa
Excluded volume excluded_volume72960 ų
Envelope volume envelope_volume84171 ų
Hydration-shell volume shell_volume30089 ų
Envelope diameter envelope_diameter76.8
Shell Rg shell_rg30.20
Envelope Rg envelope_rg22.53
Shape Rg shape_rg22.32
Total Rg total_rg23.11
Total atoms total_atoms4036
Residues n_residues505
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax71.7
Rg (real space) rg_real23.29
Rg uncertainty (real space) rg_real_error0.29
I(0) (real space) i0_real5.1410e+07
I(0) uncertainty (real space) i0_real_error6.3320e+05
Rg (reciprocal space) rg_reciprocal23.34
I(0) (reciprocal space) i0_reciprocal51410000.0000
Solution quality estimate total_estimate0.9003
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.8
Skewness Skewness skewness0.096
Kurtosis Kurtosis kurtosis-0.494
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha14920000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.912; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.974; Smooth: 0.988

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2qr9a_
Class classa — All alpha proteins
Fold Fold folda.123 — Nuclear receptor ligand-binding domain
Superfamily Superfamily superfamilya.123.1 — Nuclear receptor ligand-binding domain
Family Family familya.123.1.1 — Nuclear receptor ligand-binding domain
Domain ID domain_idd2qr9b_
Class classa — All alpha proteins
Fold Fold folda.123 — Nuclear receptor ligand-binding domain
Superfamily Superfamily superfamilya.123.1 — Nuclear receptor ligand-binding domain
Family Family familya.123.1.1 — Nuclear receptor ligand-binding domain

CATH v4.4 (2 domains)

Domain ID domain_id2qr9A00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology565 — Retinoid X Receptor
Homologous superfamily homologous superfamily10 — Retinoid X Receptor
Domain ID domain_id2qr9B00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology565 — Retinoid X Receptor
Homologous superfamily homologous superfamily10 — Retinoid X Receptor

8. Citations (1)

9. Files and Curves (10)