8b5c

Human BRD4 bromdomain 1 in complex with a H4 peptide containing ApmTri (H4K5/8ApmTri)

Method: X-RAY DIFFRACTION Dmax: 53.2 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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 44–168 Not recorded H4K5/8ApmTri × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;200 mM sodium acetate trihydrate 100 mM Trishydrochloride pH 8.5 30% w/v PEG 4000 Resolution 1.58 Å R-free 0.208

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 778 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 5–129; 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 8b5c

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8b5c
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8b5c
Deposition date deposition_date2022-09-22
Structure title titleHuman BRD4 bromdomain 1 in complex with a H4 peptide containing ApmTri (H4K5/8ApmTri)
Keywords keywordsApmTri, acetyl-lysine mimic, BET-Bromodomain, histone-peptide, PEPTIDE BINDING PROTEIN; PEPTIDE BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.24
Radius of gyration Rg (electron density) rg_electron15.15
Forward intensity I(0) i04307860.00
Molecular weight molecular_weight15490.0 kDa
Excluded volume excluded_volume19638 ų
Envelope volume envelope_volume22035 ų
Hydration-shell volume shell_volume12605 ų
Envelope diameter envelope_diameter55.0
Shell Rg shell_rg20.48
Envelope Rg envelope_rg15.55
Shape Rg shape_rg15.15
Total Rg total_rg16.19
Total atoms total_atoms1093
Residues n_residues135
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 dmax53.2
Rg (real space) rg_real16.22
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real4.3080e+06
I(0) uncertainty (real space) i0_real_error5.2880e+04
Rg (reciprocal space) rg_reciprocal16.22
I(0) (reciprocal space) i0_reciprocal4308000.0000
Solution quality estimate total_estimate0.8049
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary47.0
Skewness Skewness skewness0.309
Kurtosis Kurtosis kurtosis-0.344
Angular range angular_range— – 0.4900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1208000.0000
Real-space data points n_real_points79
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.821; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id8b5cA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like

8. Citations (1)

9. Files and Curves (10)