5bt3

Crystal structure of EP300 bromodomain in complex with SGC-CBP30 chemical probe

Method: X-RAY DIFFRACTION Dmax: 53.3 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, UNP residues 1048-1161 2LO 2-[2-(3-chloro-4-methoxyphenyl)ethyl]-5-(3,5-dimethyl-1,2-oxazol-4-yl)-1-[(2S)-2-(morpholin-4-yl)propyl]-1H-benzimidazole × 1 IPA ISOPROPYL ALCOHOL × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.6;277 K;0.1 M tri-sodium citrate dihydrate pH 5.6, 20% iso-propanol, 20% PEG 4000 Resolution 1.05 Å R-free 0.178

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 92 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

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 5bt3

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5bt3
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5bt3
Deposition date deposition_date2015-06-02
Structure title titleCrystal structure of EP300 bromodomain in complex with SGC-CBP30 chemical probe
Keywords keywordsp300, transcription regulation, histone acetyltransferase, Structural Genomics, Structural Genomics Consortium, SGC, transcription; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier15.70
Radius of gyration Rg (electron density) rg_electron14.58
Forward intensity I(0) i03623590.00
Molecular weight molecular_weight14144.0 kDa
Excluded volume excluded_volume17973 ų
Envelope volume envelope_volume19710 ų
Hydration-shell volume shell_volume11785 ų
Envelope diameter envelope_diameter53.9
Shell Rg shell_rg20.03
Envelope Rg envelope_rg15.08
Shape Rg shape_rg14.56
Total Rg total_rg15.78
Total atoms total_atoms998
Residues n_residues114
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 dmax53.3
Rg (real space) rg_real15.67
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real3.6240e+06
I(0) uncertainty (real space) i0_real_error3.8720e+04
Rg (reciprocal space) rg_reciprocal15.68
I(0) (reciprocal space) i0_reciprocal3624000.0000
Solution quality estimate total_estimate0.7856
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary18.2
Skewness Skewness skewness0.335
Kurtosis Kurtosis kurtosis-0.188
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha782900.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.742; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.985; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd5bt3a_
Class classa — All alpha proteins
Fold Fold folda.29 — Bromodomain-like
Superfamily Superfamily superfamilya.29.2 — Bromodomain
Family Family familya.29.2.1 — Bromodomain

CATH v4.4 (1 domains)

Domain ID domain_id5bt3A00
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)