9f1n

First bromodomain of BRD4 in complex with ISOX-DUAL based degrader 46

Method: X-RAY DIFFRACTION Dmax: 90.6 Å Quality: GOOD

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

Bromodomain-containing protein 4

Homo sapiens

UniProt O60885

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 44–168 Not recorded EDO 1,2-ETHANEDIOL × 2 NA SODIUM ION × 3 A1H9H (2S,4R)-1-[(2S)-2-[9-[2-[4-[2-[2-[2-[4-[3-(dimethylamino)propoxy]phenyl]ethyl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)benzimidazol-1-yl]ethyl]piperazin-1-yl]ethanoylamino]nonanoylamino]-3,3-dimethyl-butanoyl]-N-[[4-(4-methyl-4H-1,3-thiazol-5-yl)phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;Protein solution:10 mg/mL in 25 mM HEPES pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 5% glycerol, 2 mM degrader 46 Crystallization condition: 25% PEG 3350, 0.3 M sodium malonate pH 7, 10% ethylene glycol, 0.1 M bis-tris propane pH 8.5. Resolution 1.71 Å R-free 0.232
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 44–168 Not recorded EDO 1,2-ETHANEDIOL × 1 A1H9H (2S,4R)-1-[(2S)-2-[9-[2-[4-[2-[2-[2-[4-[3-(dimethylamino)propoxy]phenyl]ethyl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)benzimidazol-1-yl]ethyl]piperazin-1-yl]ethanoylamino]nonanoylamino]-3,3-dimethyl-butanoyl]-N-[[4-(4-methyl-4H-1,3-thiazol-5-yl)phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;Protein solution:10 mg/mL in 25 mM HEPES pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 5% glycerol, 2 mM degrader 46 Crystallization condition: 25% PEG 3350, 0.3 M sodium malonate pH 7, 10% ethylene glycol, 0.1 M bis-tris propane pH 8.5. Resolution 1.71 Å R-free 0.232
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 44–168 Not recorded NA SODIUM ION × 1 A1H9H (2S,4R)-1-[(2S)-2-[9-[2-[4-[2-[2-[2-[4-[3-(dimethylamino)propoxy]phenyl]ethyl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)benzimidazol-1-yl]ethyl]piperazin-1-yl]ethanoylamino]nonanoylamino]-3,3-dimethyl-butanoyl]-N-[[4-(4-methyl-4H-1,3-thiazol-5-yl)phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;Protein solution:10 mg/mL in 25 mM HEPES pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 5% glycerol, 2 mM degrader 46 Crystallization condition: 25% PEG 3350, 0.3 M sodium malonate pH 7, 10% ethylene glycol, 0.1 M bis-tris propane pH 8.5. Resolution 1.71 Å R-free 0.232
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 44–168 Not recorded EDO 1,2-ETHANEDIOL × 1 A1H9H (2S,4R)-1-[(2S)-2-[9-[2-[4-[2-[2-[2-[4-[3-(dimethylamino)propoxy]phenyl]ethyl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)benzimidazol-1-yl]ethyl]piperazin-1-yl]ethanoylamino]nonanoylamino]-3,3-dimethyl-butanoyl]-N-[[4-(4-methyl-4H-1,3-thiazol-5-yl)phenyl]methyl]-4-oxidanyl-pyrrolidine-2-carboxamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;Protein solution:10 mg/mL in 25 mM HEPES pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 5% glycerol, 2 mM degrader 46 Crystallization condition: 25% PEG 3350, 0.3 M sodium malonate pH 7, 10% ethylene glycol, 0.1 M bis-tris propane pH 8.5. Resolution 1.71 Å R-free 0.232

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.

601 other PDB entries and 775 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BRD4_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–127; UniProt 44–168 Author chain B; PDBConstruct 3–127; UniProt 44–168 Author chain C; PDBConstruct 3–127; UniProt 44–168 Author chain D; PDBConstruct 3–127; UniProt 44–168

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 9f1n

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9f1n
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9f1n
Deposition date deposition_date2024-04-19
Structure title titleFirst bromodomain of BRD4 in complex with ISOX-DUAL based degrader 46
Keywords keywordsBromodomain, epigenetic drugs, inhibitor, PROTACs, VHL, GENE REGULATION; GENE REGULATION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier27.67
Radius of gyration Rg (electron density) rg_electron27.10
Forward intensity I(0) i054441900.00
Molecular weight molecular_weight61085.0 kDa
Excluded volume excluded_volume77695 ų
Envelope volume envelope_volume94558 ų
Hydration-shell volume shell_volume29631 ų
Envelope diameter envelope_diameter98.3
Shell Rg shell_rg33.88
Envelope Rg envelope_rg26.95
Shape Rg shape_rg27.10
Total Rg total_rg27.83
Total atoms total_atoms4310
Residues n_residues500
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 dmax90.6
Rg (real space) rg_real27.63
Rg uncertainty (real space) rg_real_error0.68
I(0) (real space) i0_real5.4440e+07
I(0) uncertainty (real space) i0_real_error9.0900e+05
Rg (reciprocal space) rg_reciprocal27.64
I(0) (reciprocal space) i0_reciprocal54440000.0000
Solution quality estimate total_estimate0.8941
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary35.0
Skewness Skewness skewness0.274
Kurtosis Kurtosis kurtosis-0.366
Angular range angular_range— – 0.2850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha12690000.0000
Real-space data points n_real_points58
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.905; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.913

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

8. Citations (1)

9. Files and Curves (10)