6u74

BRD4-BD1 in complex with the cyclic peptide 3.1_2

Method: X-RAY DIFFRACTION Dmax: 94.4 Å Quality: EXCELLENT

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 42–168 Chain C; UniProt 42–168 Not recorded cyclic peptide 3.1_2 × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;291 K;0.2 M Sodium malonate dibasic monohydrate, 0.1 M Bis-Tris propane 7.5, 20 % w/v PEG 3350 Resolution 1.85 Å R-free 0.323
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 42–168 Chain D; UniProt 42–168 Not recorded cyclic peptide 3.1_2 × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;291 K;0.2 M Sodium malonate dibasic monohydrate, 0.1 M Bis-Tris propane 7.5, 20 % w/v PEG 3350 Resolution 1.85 Å R-free 0.323

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 777 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 7–133; UniProt 42–168 Author chain B; PDBConstruct 7–133; UniProt 42–168 Author chain C; PDBConstruct 7–133; UniProt 42–168 Author chain D; PDBConstruct 7–133; UniProt 42–168

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 6u74

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6u74
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6u74
Deposition date deposition_date2019-08-31
Structure title titleBRD4-BD1 in complex with the cyclic peptide 3.1_2
Keywords keywordsBET, bromodomain, macrocyclic peptide, BRD4, inhibitor, RaPID, TRANSCRIPTION-INHIBITOR complex; TRANSCRIPTION/INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier30.45
Radius of gyration Rg (electron density) rg_electron29.40
Forward intensity I(0) i051293800.00
Molecular weight molecular_weight59050.0 kDa
Excluded volume excluded_volume75179 ų
Envelope volume envelope_volume101550 ų
Hydration-shell volume shell_volume28674 ų
Envelope diameter envelope_diameter99.0
Shell Rg shell_rg36.97
Envelope Rg envelope_rg28.51
Shape Rg shape_rg29.40
Total Rg total_rg30.23
Total atoms total_atoms4162
Residues n_residues487
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 dmax94.4
Rg (real space) rg_real30.34
Rg uncertainty (real space) rg_real_error0.62
I(0) (real space) i0_real5.1290e+07
I(0) uncertainty (real space) i0_real_error6.9510e+05
Rg (reciprocal space) rg_reciprocal30.39
I(0) (reciprocal space) i0_reciprocal51300000.0000
Solution quality estimate total_estimate0.9082
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary43.6
Skewness Skewness skewness0.084
Kurtosis Kurtosis kurtosis-0.646
Angular range angular_range— – 0.2600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6853000.0000
Real-space data points n_real_points53
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.952; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.953

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)