2p1u

Crystal structure of the ligand binding domain of the retinoid X receptor alpha in complex with 3-(2'-ethoxy)-tetrahydronaphtyl cinnamic acid and a fragment of the coactivator TIF-2

Method: X-RAY DIFFRACTION Dmax: 58.8 Å Quality: GOOD

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

Retinoic acid receptor RXR-alpha

Homo sapiens

UniProt P19793

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 223–462 Fragment:ligand binding domain (residues 223-462) Nuclear receptor coactivator 2 peptide × 2 (Q15596) 4TN (2E)-3-[3-(3-ETHOXY-5,5,8,8-TETRAMETHYL-5,6,7,8-TETRAHYDRONAPHTHALEN-2-YL)-4-HYDROXYPHENYL]ACRYLIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;298 K;14% PEG 10000, 0.1M Tris, 1M ammonium chloride, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K Resolution 2.20 Å R-free 0.251

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.

107 other PDB entries and 138 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RXRA_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–240; UniProt 223–462

Nuclear receptor coactivator 2 peptide

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 Fragment:nuclear receptor interaction motif 2 (residues 686-698) Retinoic acid receptor RXR-alpha × 2 (P19793) 4TN (2E)-3-[3-(3-ETHOXY-5,5,8,8-TETRAMETHYL-5,6,7,8-TETRAHYDRONAPHTHALEN-2-YL)-4-HYDROXYPHENYL]ACRYLIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;298 K;14% PEG 10000, 0.1M Tris, 1M ammonium chloride, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K Resolution 2.20 Å R-free 0.251

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 2p1u

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2p1u
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2p1u
Deposition date deposition_date2007-03-06
Structure title titleCrystal structure of the ligand binding domain of the retinoid X receptor alpha in complex with 3-(2'-ethoxy)-tetrahydronaphtyl cinnamic acid and a fragment of the coactivator TIF-2
Keywords keywordsprotein-ligand complex, HORMONE RECEPTOR; HORMONE RECEPTOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.48
Radius of gyration Rg (electron density) rg_electron17.15
Forward intensity I(0) i010540500.00
Molecular weight molecular_weight25290.0 kDa
Excluded volume excluded_volume32214 ų
Envelope volume envelope_volume36295 ų
Hydration-shell volume shell_volume17596 ų
Envelope diameter envelope_diameter60.6
Shell Rg shell_rg23.44
Envelope Rg envelope_rg17.41
Shape Rg shape_rg17.17
Total Rg total_rg18.14
Total atoms total_atoms1780
Residues n_residues221
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 dmax58.8
Rg (real space) rg_real18.38
Rg uncertainty (real space) rg_real_error0.42
I(0) (real space) i0_real1.0540e+07
I(0) uncertainty (real space) i0_real_error1.3130e+05
Rg (reciprocal space) rg_reciprocal18.39
I(0) (reciprocal space) i0_reciprocal10540000.0000
Solution quality estimate total_estimate0.8114
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary23.4
Skewness Skewness skewness0.169
Kurtosis Kurtosis kurtosis-0.414
Angular range angular_range— – 0.4300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2544000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.851; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2p1ua_
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 (1 domains)

Domain ID domain_id2p1uA00
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)