5nu3

Crystal structure of the human bromodomain of CREBBP bound to the inhibitor XDM-CBP

Method: X-RAY DIFFRACTION Dmax: 42.9 Å Quality: REASONABLE

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

CREB-binding protein

Homo sapiens

UniProt Q92793

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 1081–1197 Fragment:bromodomain 99E ~{N}-[[2,8-bis(oxidanyl)naphthalen-1-yl]methyl]-4-ethanoyl-3-ethyl-5-methyl-1~{H}-pyrrole-2-carboxamide × 1 BU3 (R,R)-2,3-BUTANEDIOL × 4 SO4 SULFATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;pH 6.5;277 K;LiSO4, PEG 3350, ethylene glycol Resolution 1.75 Å R-free 0.200

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.

135 other PDB entries and 224 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CBP_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–119; UniProt 1081–1197

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 5nu3

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5nu3
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5nu3
Deposition date deposition_date2017-04-28
Structure title titleCrystal structure of the human bromodomain of CREBBP bound to the inhibitor XDM-CBP
Keywords keywordsbromodomain, protein-inhibitor complex, epigenetics, CREBBP, transferase; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.32
Radius of gyration Rg (electron density) rg_electron15.20
Forward intensity I(0) i04030820.00
Molecular weight molecular_weight14883.0 kDa
Excluded volume excluded_volume18875 ų
Envelope volume envelope_volume21356 ų
Hydration-shell volume shell_volume12284 ų
Envelope diameter envelope_diameter54.8
Shell Rg shell_rg20.58
Envelope Rg envelope_rg15.73
Shape Rg shape_rg15.14
Total Rg total_rg16.49
Total atoms total_atoms1047
Residues n_residues119
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 dmax42.9
Rg (real space) rg_real15.69
Rg uncertainty (real space) rg_real_error0.05
I(0) (real space) i0_real3.8470e+06
I(0) uncertainty (real space) i0_real_error3.2570e+04
Rg (reciprocal space) rg_reciprocal16.31
I(0) (reciprocal space) i0_reciprocal4031000.0000
Solution quality estimate total_estimate0.6807
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary18.2
Skewness Skewness skewness0.239
Kurtosis Kurtosis kurtosis-0.415
Angular range angular_range— – 0.4900 −1
Current regularization parameter α current_alpha5.2690
Highest regularization parameter α highest_alpha726800.0000
Real-space data points n_real_points79
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.984; Stabil: 0.966; Sysdev: 0.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd5nu3a1
Class classa — All alpha proteins
Fold Fold folda.29 — Bromodomain-like
Superfamily Superfamily superfamilya.29.2 — Bromodomain
Family Family familya.29.2.1 — Bromodomain
Domain ID domain_idd5nu3a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id5nu3A00
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)