3gg3

Crystal Structure of the Bromodomain of Human PCAF

Method: X-RAY DIFFRACTION Dmax: 59.9 Å Quality: REASONABLE

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

Histone acetyltransferase PCAF

Homo sapiens

UniProt Q92831

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 715–831 Fragment:UNP residues 715-831 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.2;277 K;20% PEG10K, 4% Ethylene Glycol, 0.1M HEPES pH 8.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.25 Å R-free 0.245
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 715–831 Fragment:UNP residues 715-831 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.2;277 K;20% PEG10K, 4% Ethylene Glycol, 0.1M HEPES pH 8.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.25 Å R-free 0.245

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.

24 other PDB entries and 38 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PCAF_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 3–119; UniProt 715–831 Author chain B; PDBConstruct 3–119; UniProt 715–831

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 3gg3

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3gg3
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3gg3
Deposition date deposition_date2009-02-27
Structure title titleCrystal Structure of the Bromodomain of Human PCAF
Keywords keywords;PCAF, K(lysine) acetyltransferase 2B, KAT2B, GCN5, GCN5L, P, P/CAF, CREBBP-associated factor, p300/CBP-associated factor, SGC, Structural Genomics Consortium, Acyltransferase, Bromodomain, Cell cycle, Host-virus interaction, Nucleus, Phosphoprotein, Transcription, Transcription regulation, Transferase ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.75
Radius of gyration Rg (electron density) rg_electron17.67
Forward intensity I(0) i09994500.00
Molecular weight molecular_weight24545.0 kDa
Excluded volume excluded_volume31176 ų
Envelope volume envelope_volume36578 ų
Hydration-shell volume shell_volume17408 ų
Envelope diameter envelope_diameter61.7
Shell Rg shell_rg23.62
Envelope Rg envelope_rg17.87
Shape Rg shape_rg17.64
Total Rg total_rg18.75
Total atoms total_atoms1729
Residues n_residues211
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 dmax59.9
Rg (real space) rg_real18.66
Rg uncertainty (real space) rg_real_error0.35
I(0) (real space) i0_real9.9950e+06
I(0) uncertainty (real space) i0_real_error1.1530e+05
Rg (reciprocal space) rg_reciprocal18.68
I(0) (reciprocal space) i0_reciprocal9995000.0000
Solution quality estimate total_estimate0.7363
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary22.2
Skewness Skewness skewness0.202
Kurtosis Kurtosis kurtosis-0.441
Angular range angular_range— – 0.4250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3083000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.882; Stabil: 1.000; Sysdev: 0.313; Positv: 1.000; Valcen: 0.999; Smooth: 0.986

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd3gg3a_
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_idd3gg3b_
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 (2 domains)

Domain ID domain_id3gg3A00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology920 — Histone Acetyltransferase; Chain A
Homologous superfamily homologous superfamily10 — Bromodomain-like
Domain ID domain_id3gg3B00
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)