9b2b

Estrogen Receptor Alpha Ligand Binding Domain in Complex with a Complete Estrogen Receptor Antagonists that Favors Tetramer Formation

Method: X-RAY DIFFRACTION Dmax: 110.3 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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 301–554 Chain C; UniProt 301–554 Not recorded A1AI0 2-chloro-3-{[{[1-(2-fluorophenyl)cyclopentyl]methyl}(4-{[1-(3-fluoropropyl)azetidin-3-yl]oxy}phenyl)amino]methyl}phenol × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;298 K;Ammonium acetate Resolution 2.08 Å R-free 0.318
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 301–554 Chain D; UniProt 301–554 Not recorded A1AI0 2-chloro-3-{[{[1-(2-fluorophenyl)cyclopentyl]methyl}(4-{[1-(3-fluoropropyl)azetidin-3-yl]oxy}phenyl)amino]methyl}phenol × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;298 K;Ammonium acetate Resolution 2.08 Å R-free 0.318

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 521 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 2–255; UniProt 301–554 Author chain B; PDBConstruct 2–255; UniProt 301–554 Author chain C; PDBConstruct 2–255; UniProt 301–554 Author chain D; PDBConstruct 2–255; UniProt 301–554

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 9b2b

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9b2b
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9b2b
Deposition date deposition_date2024-03-14
最后修订 last_revision2025-08-27
Structure title titleEstrogen Receptor Alpha Ligand Binding Domain in Complex with a Complete Estrogen Receptor Antagonists that Favors Tetramer Formation
Keywords keywordsestrogen receptor, antiestrogen, alpha helical bundle, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.19
Radius of gyration Rg (electron density) rg_electron33.71
Forward intensity I(0) i0304298000.00
Molecular weight molecular_weight94921.0 kDa
Excluded volume excluded_volume92404 ų
Envelope volume envelope_volume165130 ų
Hydration-shell volume shell_volume41075 ų
Envelope diameter envelope_diameter111.8
Shell Rg shell_rg40.16
Envelope Rg envelope_rg33.30
Shape Rg shape_rg33.70
Total Rg total_rg34.09
Total atoms total_atoms7169
Residues n_residues895
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 dmax110.3
Rg (real space) rg_real34.18
Rg uncertainty (real space) rg_real_error0.93
I(0) (real space) i0_real3.0430e+08
I(0) uncertainty (real space) i0_real_error5.2000e+06
Rg (reciprocal space) rg_reciprocal34.19
I(0) (reciprocal space) i0_reciprocal304300000.0000
Solution quality estimate total_estimate0.9019
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary38.4
Skewness Skewness skewness0.259
Kurtosis Kurtosis kurtosis-0.623
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha33690000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.933; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.928

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)