4bhw

Structural basis for autoinhibition of the acetyltransferase activity of p300

Method: X-RAY DIFFRACTION Dmax: 108.7 Å Quality: REASONABLE

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1043–1519 Chain A; UniProt 1581–1666 Chain B; UniProt 1043–1519 Chain B; UniProt 1581–1666 Fragment:P300 CORE, RESIDUES 1043-1519,1581-1666 Mutation:YES ZN ZINC ION × 7 01K [(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]methyl (3R,20R)-20-carbamoyl-3-hydroxy-2,2-dimethyl-4,8,14,22-tetraoxo-12-thia-5,9,15,21-tetraazatricos-1-yl dihydrogen diphosphate × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;100 MM HEPES, PH 7.5, 20% PEG3350, 0.2M NACL Resolution 2.80 Å R-free 0.244

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 11–487; UniProt 1043–1519 Author chain A; PDBConstruct 493–578; UniProt 1581–1666 Author chain B; PDBConstruct 11–487; UniProt 1043–1519 Author chain B; PDBConstruct 493–578; UniProt 1581–1666

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 4bhw

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4bhw
Deposition date deposition_date2013-04-08
Structure title titleStructural basis for autoinhibition of the acetyltransferase activity of p300
Keywords keywordsTRANSFERASE, BROMODOMAIN, PHD DOMAIN, RING DOMAIN, HAT DOMAIN, ENHANCEOSOME; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.79
Radius of gyration Rg (electron density) rg_electron34.08
Forward intensity I(0) i0534393000.00
Molecular weight molecular_weight123770.0 kDa
Excluded volume excluded_volume119250 ų
Envelope volume envelope_volume227160 ų
Hydration-shell volume shell_volume54296 ų
Envelope diameter envelope_diameter116.3
Shell Rg shell_rg41.99
Envelope Rg envelope_rg33.28
Shape Rg shape_rg34.09
Total Rg total_rg34.49
Total atoms total_atoms9312
Residues n_residues1126
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 dmax108.7
Rg (real space) rg_real34.60
Rg uncertainty (real space) rg_real_error0.70
I(0) (real space) i0_real5.3440e+08
I(0) uncertainty (real space) i0_real_error8.5490e+06
Rg (reciprocal space) rg_reciprocal34.72
I(0) (reciprocal space) i0_reciprocal534500000.0000
Solution quality estimate total_estimate0.7030
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary45.9
Skewness Skewness skewness0.139
Kurtosis Kurtosis kurtosis-0.394
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha29040000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.897; Stabil: 1.000; Sysdev: 0.186; Positv: 1.000; Valcen: 0.976; Smooth: 0.908

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id4bhwA01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like
Domain ID domain_id4bhwA02
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology110 — Cysteine Rich Protein
Homologous superfamily homologous superfamily40 — CREB-binding protein/p300 RING domain
Domain ID domain_id4bhwA03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology40 — Herpes Virus-1
Homologous superfamily homologous superfamily10 — Zinc/RING finger domain, C3HC4 (zinc finger)
Domain ID domain_id4bhwB01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like
Domain ID domain_id4bhwB02
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology110 — Cysteine Rich Protein
Homologous superfamily homologous superfamily40 — CREB-binding protein/p300 RING domain
Domain ID domain_id4bhwB03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology40 — Herpes Virus-1
Homologous superfamily homologous superfamily10 — Zinc/RING finger domain, C3HC4 (zinc finger)

8. Citations (1)

9. Files and Curves (10)