4z1s

Crystal structure of the first bromodomain of human BRD4 with benzotriazolo-diazepine scaffold

Method: X-RAY DIFFRACTION Dmax: 76.5 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 42–166 Fragment:UNP Residues 42-166 559 5-[(4S)-6-(4-chlorophenyl)-1,4-dimethyl-5,6-dihydro-4H-[1,2,4]triazolo[4,3-a][1,5]benzodiazepin-8-yl]pyridin-2-amine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;0.2 M potassium sodium tartrate and 20% PEG 3350 Resolution 1.06 Å R-free 0.220
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 42–166 Fragment:UNP Residues 42-166 559 5-[(4S)-6-(4-chlorophenyl)-1,4-dimethyl-5,6-dihydro-4H-[1,2,4]triazolo[4,3-a][1,5]benzodiazepin-8-yl]pyridin-2-amine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;277 K;0.2 M potassium sodium tartrate and 20% PEG 3350 Resolution 1.06 Å R-free 0.220

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 2–126; UniProt 42–166 Author chain B; PDBConstruct 2–126; UniProt 42–166

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 4z1s

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4z1s
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4z1s
Deposition date deposition_date2015-03-27
Structure title titleCrystal structure of the first bromodomain of human BRD4 with benzotriazolo-diazepine scaffold
Keywords keywordsbromodomain, Signaling Protein; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.50
Radius of gyration Rg (electron density) rg_electron22.07
Forward intensity I(0) i014967600.00
Molecular weight molecular_weight30409.0 kDa
Excluded volume excluded_volume38573 ų
Envelope volume envelope_volume45971 ų
Hydration-shell volume shell_volume18298 ų
Envelope diameter envelope_diameter76.3
Shell Rg shell_rg27.49
Envelope Rg envelope_rg22.03
Shape Rg shape_rg22.06
Total Rg total_rg22.88
Total atoms total_atoms2145
Residues n_residues251
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 dmax76.5
Rg (real space) rg_real22.59
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real1.4970e+07
I(0) uncertainty (real space) i0_real_error1.9700e+05
Rg (reciprocal space) rg_reciprocal22.57
I(0) (reciprocal space) i0_reciprocal14970000.0000
Solution quality estimate total_estimate0.8681
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary20.9
Skewness Skewness skewness0.419
Kurtosis Kurtosis kurtosis-0.389
Angular range angular_range— – 0.3550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5674000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.822; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.890; Smooth: 0.926

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4z1sA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like
Domain ID domain_id4z1sB01
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)