4mr6

Crystal Structure of the second bromodomain of human BRD2 in complex with a quinazolinone ligand (RVX-208)

Method: X-RAY DIFFRACTION Dmax: 51.6 Å Quality: REASONABLE

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

Bromodomain-containing protein 2

Homo sapiens

UniProt P25440

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 344–455 Fragment:unp residues 344-455 EDO 1,2-ETHANEDIOL × 3 DMS DIMETHYL SULFOXIDE × 1 1K0 2-[4-(2-hydroxyethoxy)-3,5-dimethylphenyl]-5,7-dimethoxyquinazolin-4(3H)-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;277 K;25% PEG3350, 0.2M KSCN, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 1.67 Å R-free 0.193

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.

164 other PDB entries and 264 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BRD2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–114; UniProt 344–455

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 4mr6

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4mr6
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4mr6
Deposition date deposition_date2013-09-17
Structure title titleCrystal Structure of the second bromodomain of human BRD2 in complex with a quinazolinone ligand (RVX-208)
Keywords keywords;BRD2, RING3, Small molecule inhibitor, RVX-208, inhibitor complex, Structural Genomics Consortium, SGC, TRANSCRIPTION-TRANSCRIPTION inhibitor complex ;; TRANSCRIPTION/TRANSCRIPTION inhibitor
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.58
Radius of gyration Rg (electron density) rg_electron14.29
Forward intensity I(0) i03684740.00
Molecular weight molecular_weight13524.0 kDa
Excluded volume excluded_volume16924 ų
Envelope volume envelope_volume19415 ų
Hydration-shell volume shell_volume11743 ų
Envelope diameter envelope_diameter51.9
Shell Rg shell_rg19.74
Envelope Rg envelope_rg14.77
Shape Rg shape_rg14.28
Total Rg total_rg15.46
Total atoms total_atoms950
Residues n_residues110
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 dmax51.6
Rg (real space) rg_real15.55
Rg uncertainty (real space) rg_real_error0.29
I(0) (real space) i0_real3.6850e+06
I(0) uncertainty (real space) i0_real_error3.3630e+04
Rg (reciprocal space) rg_reciprocal15.55
I(0) (reciprocal space) i0_reciprocal3685000.0000
Solution quality estimate total_estimate0.6295
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary18.3
Skewness Skewness skewness0.311
Kurtosis Kurtosis kurtosis-0.241
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha791900.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.807; Stabil: 0.999; Sysdev: 0.256; Positv: 1.000; Valcen: 0.992; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd4mr6a_
Class classa — All alpha proteins
Fold Fold folda.29 — Bromodomain-like
Superfamily Superfamily superfamilya.29.2 — Bromodomain
Family Family familya.29.2.0 — automated matches

CATH v4.4 (1 domains)

Domain ID domain_id4mr6A00
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)