2ahi

Structural Basis of DNA Recognition by p53 Tetramers (complex III)

Method: X-RAY DIFFRACTION Dmax: 105.6 Å Quality: GOOD

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

Cellular tumor antigen p53

Homo sapiens

UniProt P04637

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–DNA Homooligomer Protein × 4 DNA 4 PDB declaration: octameric(8) Consistent with all polymer counts Chain A; UniProt 94–293 Chain B; UniProt 94–293 Chain C; UniProt 94–293 Chain D; UniProt 94–293 Fragment:residues 94-293 5'-D(*CP*GP*GP*AP*CP*AP*TP*GP*TP*CP*CP*G)-3' × 4 ZN ZINC ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.3;293 K;Ammonium Chloride, PEG 3350, pH 6.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.85 Å R-free 0.225

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.

291 other PDB entries and 462 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name P53_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain A; PDBConstruct 1–200; UniProt 94–293 Author chain B; PDBConstruct 1–200; UniProt 94–293 Author chain C; PDBConstruct 1–200; UniProt 94–293 Author chain D; PDBConstruct 1–200; UniProt 94–293

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 2ahi

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2ahi
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id2ahi
Deposition date deposition_date2005-07-28
Structure title titleStructural Basis of DNA Recognition by p53 Tetramers (complex III)
Keywords keywordsProtein-DNA Complex, APOPTOSIS-DNA COMPLEX; APOPTOSIS/DNA
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier31.96
Radius of gyration Rg (electron density) rg_electron31.98
Forward intensity I(0) i0214539000.00
Molecular weight molecular_weight101720.0 kDa
Excluded volume excluded_volume120840 ų
Envelope volume envelope_volume164250 ų
Hydration-shell volume shell_volume42761 ų
Envelope diameter envelope_diameter115.5
Shell Rg shell_rg39.16
Envelope Rg envelope_rg31.49
Shape Rg shape_rg32.07
Total Rg total_rg32.26
Total atoms total_atoms7036
Residues n_residues830
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 dmax105.6
Rg (real space) rg_real31.84
Rg uncertainty (real space) rg_real_error0.70
I(0) (real space) i0_real2.1450e+08
I(0) uncertainty (real space) i0_real_error3.3870e+06
Rg (reciprocal space) rg_reciprocal31.89
I(0) (reciprocal space) i0_reciprocal214500000.0000
Solution quality estimate total_estimate0.8933
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary42.2
Skewness Skewness skewness0.212
Kurtosis Kurtosis kurtosis-0.415
Angular range angular_range— – 0.2500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha35490000.0000
Real-space data points n_real_points51
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.872; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.993

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2ahia_
Class classb — All beta proteins
Fold Fold foldb.2 — Common fold of diphtheria toxin/transcription factors/cytochrome f
Superfamily Superfamily superfamilyb.2.5 — p53-like transcription factors
Family Family familyb.2.5.2 — p53 DNA-binding domain-like
Domain ID domain_idd2ahib_
Class classb — All beta proteins
Fold Fold foldb.2 — Common fold of diphtheria toxin/transcription factors/cytochrome f
Superfamily Superfamily superfamilyb.2.5 — p53-like transcription factors
Family Family familyb.2.5.2 — p53 DNA-binding domain-like
Domain ID domain_idd2ahic_
Class classb — All beta proteins
Fold Fold foldb.2 — Common fold of diphtheria toxin/transcription factors/cytochrome f
Superfamily Superfamily superfamilyb.2.5 — p53-like transcription factors
Family Family familyb.2.5.2 — p53 DNA-binding domain-like
Domain ID domain_idd2ahid_
Class classb — All beta proteins
Fold Fold foldb.2 — Common fold of diphtheria toxin/transcription factors/cytochrome f
Superfamily Superfamily superfamilyb.2.5 — p53-like transcription factors
Family Family familyb.2.5.2 — p53 DNA-binding domain-like

CATH v4.4 (4 domains)

Domain ID domain_id2ahiA00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily720
Domain ID domain_id2ahiB00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily720
Domain ID domain_id2ahiC00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily720
Domain ID domain_id2ahiD00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily720

8. Citations (1)

9. Files and Curves (10)