9d8q

Crystal structure of Estrogen Receptor alpha from Melanotaenia fluviatilis bound to estradiol and human SRC2 peptide

Method: X-RAY DIFFRACTION Dmax: 59.8 Å Quality: GOOD

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

Estrogen receptor

Melanotaenia fluviatilis

UniProt D6N7U3

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 310–553 Not recorded Nuclear receptor coactivator 2 × 2 (Q15596) EST ESTRADIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7;290 K;9-10% Tacsimate pH 7.0, 22% PEG3000 Resolution 2.75 Å R-free 0.261

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 D6N7U3_MELFL
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 7–250; UniProt 310–553

Nuclear receptor coactivator 2

OrganismNot specified

UniProt Q15596

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 B; UniProt 686–698 Not recorded Estrogen receptor × 2 (D6N7U3) EST ESTRADIOL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7;290 K;9-10% Tacsimate pH 7.0, 22% PEG3000 Resolution 2.75 Å R-free 0.261

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.

283 other PDB entries and 334 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NCOA2_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; 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 9d8q

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9d8q
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9d8q
Deposition date deposition_date2024-08-20
最后修订 last_revision2025-10-22
Structure title titleCrystal structure of Estrogen Receptor alpha from Melanotaenia fluviatilis bound to estradiol and human SRC2 peptide
Keywords keywordstranscription, nuclear receptor, estrogen, steroid, NUCLEAR PROTEIN; NUCLEAR PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.27
Radius of gyration Rg (electron density) rg_electron17.78
Forward intensity I(0) i012368000.00
Molecular weight molecular_weight27072.0 kDa
Excluded volume excluded_volume34269 ų
Envelope volume envelope_volume39067 ų
Hydration-shell volume shell_volume18394 ų
Envelope diameter envelope_diameter59.7
Shell Rg shell_rg23.98
Envelope Rg envelope_rg17.91
Shape Rg shape_rg17.79
Total Rg total_rg18.71
Total atoms total_atoms1897
Residues n_residues241
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 dmax59.8
Rg (real space) rg_real19.15
Rg uncertainty (real space) rg_real_error0.32
I(0) (real space) i0_real1.2370e+07
I(0) uncertainty (real space) i0_real_error1.5800e+05
Rg (reciprocal space) rg_reciprocal19.17
I(0) (reciprocal space) i0_reciprocal12370000.0000
Solution quality estimate total_estimate0.8853
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.9
Skewness Skewness skewness0.147
Kurtosis Kurtosis kurtosis-0.457
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2382000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.909; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.993; Smooth: 0.784

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)