9s9p

Crystal structure of p53 cancer mutant Y220S in complex with rezatapopt

Method: X-RAY DIFFRACTION Dmax: 74.1 Å Quality: REASONABLE

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 94–312 Fragment:DNA-binding domain ZN ZINC ION × 1 A1JMR 4-[3-[4-[[(3~{S},4~{R})-3-fluoranyl-1-methyl-piperidin-4-yl]amino]-1-[2,2,2-tris(fluoranyl)ethyl]indol-2-yl]prop-2-ynylamino]-3-methoxy-~{N}-methyl-benzamide × 1 EDO 1,2-ETHANEDIOL × 6 NO3 NITRATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;Protein solution: 6 mg/ml in 25 mM Hepes, pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 1 mM Rezatapopt, 2% DMSO. Reservoir buffer: 0.2 M ammonium nitrate, 20% PEG 3350 (protein:buffer 2:1). Cryo: reservoir buffer supplemented with 23% ethylene glycol. Resolution 1.40 Å R-free 0.188
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 94–312 Fragment:DNA-binding domain ZN ZINC ION × 1 A1JMR 4-[3-[4-[[(3~{S},4~{R})-3-fluoranyl-1-methyl-piperidin-4-yl]amino]-1-[2,2,2-tris(fluoranyl)ethyl]indol-2-yl]prop-2-ynylamino]-3-methoxy-~{N}-methyl-benzamide × 1 EDO 1,2-ETHANEDIOL × 10 NO3 NITRATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;Protein solution: 6 mg/ml in 25 mM Hepes, pH 7.5, 150 mM NaCl, 0.5 mM TCEP, 1 mM Rezatapopt, 2% DMSO. Reservoir buffer: 0.2 M ammonium nitrate, 20% PEG 3350 (protein:buffer 2:1). Cryo: reservoir buffer supplemented with 23% ethylene glycol. Resolution 1.40 Å R-free 0.188

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 461 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name P53_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–219; UniProt 94–312 Author chain B; PDBConstruct 1–219; UniProt 94–312

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 9s9p

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9s9p
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9s9p
Deposition date deposition_date2025-08-06
Structure title titleCrystal structure of p53 cancer mutant Y220S in complex with rezatapopt
Keywords keywordsp53, tumor suppressor, protein stability, protein unfolding disease, small-molecule stabilizer, cancer therapy, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.13
Radius of gyration Rg (electron density) rg_electron23.38
Forward intensity I(0) i073462700.00
Molecular weight molecular_weight43072.0 kDa
Excluded volume excluded_volume40583 ų
Envelope volume envelope_volume69510 ų
Hydration-shell volume shell_volume24808 ų
Envelope diameter envelope_diameter77.4
Shell Rg shell_rg30.39
Envelope Rg envelope_rg23.21
Shape Rg shape_rg23.37
Total Rg total_rg23.98
Total atoms total_atoms3217
Residues n_residues396
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 dmax74.1
Rg (real space) rg_real24.04
Rg uncertainty (real space) rg_real_error0.41
I(0) (real space) i0_real7.3460e+07
I(0) uncertainty (real space) i0_real_error9.4570e+05
Rg (reciprocal space) rg_reciprocal24.07
I(0) (reciprocal space) i0_reciprocal73460000.0000
Solution quality estimate total_estimate0.7067
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.9
Skewness Skewness skewness0.197
Kurtosis Kurtosis kurtosis-0.576
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6563000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.967; Stabil: 1.000; Sysdev: 0.101; Positv: 1.000; Valcen: 1.000; Smooth: 0.980

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)