5nu5

Crystal structure of the human bromodomain of EP300 bound to the inhibitor XDM-CBP

Method: X-RAY DIFFRACTION Dmax: 76.7 Å Quality: GOOD

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

Histone acetyltransferase p300

Homo sapiens

UniProt Q09472

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 1048–1161 Fragment:bromodomain 99E ~{N}-[[2,8-bis(oxidanyl)naphthalen-1-yl]methyl]-4-ethanoyl-3-ethyl-5-methyl-1~{H}-pyrrole-2-carboxamide × 1 EDO 1,2-ETHANEDIOL × 4 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;pH 6.5;277 K;KSCN, NaBr, PEG 6000, PEG 8000, PEG 10000 Resolution 1.60 Å R-free 0.185
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1048–1161 Fragment:bromodomain 99E ~{N}-[[2,8-bis(oxidanyl)naphthalen-1-yl]methyl]-4-ethanoyl-3-ethyl-5-methyl-1~{H}-pyrrole-2-carboxamide × 1 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:EVAPORATION;pH 6.5;277 K;KSCN, NaBr, PEG 6000, PEG 8000, PEG 10000 Resolution 1.60 Å R-free 0.185

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.

58 other PDB entries and 91 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name EP300_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–116; UniProt 1048–1161 Author chain B; PDBConstruct 3–116; UniProt 1048–1161

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 5nu5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5nu5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5nu5
Deposition date deposition_date2017-04-28
Structure title titleCrystal structure of the human bromodomain of EP300 bound to the inhibitor XDM-CBP
Keywords keywordsbromodomain, protein-inhibitor complex, epigenetics, EP300, transferase; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.76
Radius of gyration Rg (electron density) rg_electron19.77
Forward intensity I(0) i013335500.00
Molecular weight molecular_weight28619.0 kDa
Excluded volume excluded_volume36278 ų
Envelope volume envelope_volume42997 ų
Hydration-shell volume shell_volume18366 ų
Envelope diameter envelope_diameter63.5
Shell Rg shell_rg25.80
Envelope Rg envelope_rg19.82
Shape Rg shape_rg19.75
Total Rg total_rg20.73
Total atoms total_atoms2017
Residues n_residues232
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 dmax76.7
Rg (real space) rg_real20.71
Rg uncertainty (real space) rg_real_error0.78
I(0) (real space) i0_real1.3340e+07
I(0) uncertainty (real space) i0_real_error2.1750e+05
Rg (reciprocal space) rg_reciprocal20.72
I(0) (reciprocal space) i0_reciprocal13340000.0000
Solution quality estimate total_estimate0.7526
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary20.0
Skewness Skewness skewness0.220
Kurtosis Kurtosis kurtosis-0.564
Angular range angular_range— – 0.3850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9060000.0000
Real-space data points n_real_points70
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.643; Stabil: 0.996; Sysdev: 1.000; Positv: 1.000; Valcen: 0.863; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd5nu5a1
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_idd5nu5a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd5nu5b1
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_idd5nu5b2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id5nu5A00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like
Domain ID domain_id5nu5B00
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)