PDBe 4ibq

X-ray diffraction
1.8Å resolution

Human p53 core domain with hot spot mutation R273C


Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Cellular tumor antigen p53 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 200 amino acids
Theoretical weight: 22.45 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P04637 (Residues: 94-293; Coverage: 51%)
Gene names: P53, TP53
Sequence domains: P53 DNA-binding domain
Structure domains: Immunoglobulin-like

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-3
Spacegroup: P21
Unit cell:
a: 68.731Å b: 69.719Å c: 83.51Å
α: 90° β: 90.1° γ: 90°
R R work R free
0.135 0.134 0.163
Expression system: Escherichia coli BL21(DE3)