Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 8.42 kDa 
• Atom Count: 514 
• Modelled Residue Count: 58 
• Deposited Residue Count: 70 
• Unique protein chains: 1

1A1U

SOLUTION STRUCTURE DETERMINATION OF A P53 MUTANT DIMERIZATION DOMAIN, NMR, MINIMIZED AVERAGE STRUCTURE

• PDB DOI: 10.2210/pdb1A1U/pdb

• Classification: ANTI-ONCOGENE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1997-12-16 Released: 1998-04-08 
• Deposition Author(s): Mccoy, M.A., Stavridi, E.S., Waterman, J.L.F., Wieczorek, A., Opella, S.J., Halezonetis, T.D.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 40 
• Conformers Submitted: 1 
• Selection Criteria: NO VIOLATIONS 

Literature

Hydrophobic side-chain size is a determinant of the three-dimensional structure of the p53 oligomerization domain.

McCoy, M., Stavridi, E.S., Waterman, J.L., Wieczorek, A.M., Opella, S.J., Halazonetis, T.D.

(1997) EMBO J 16: 6230-6236

• PubMed: 9321402 
• DOI: 10.1093/emboj/16.20.6230
• Primary Citation of Related Structures:  
  1A1U


• PubMed Abstract: 
  

The p53 tumor suppressor oligomerization domain, a dimer of two primary dimers, is an independently folding domain whose subunits consist of a beta-strand, a tight turn and an alpha-helix. To evaluate the effect of hydrophobic side-chains on three-dimensional structure, we substituted residues Phe341 and Leu344 in the alpha-helix with other hydrophobic amino acids. Substitutions that resulted in residue 341 having a smaller side-chain than residue 344 switched the stoichiometry of the domain from tetrameric to dimeric. The three-dimensional structure of one such dimer was determined by multidimensional NMR spectroscopy. When compared with the primary dimer of the wild-type p53 oligomerization domain, the mutant dimer showed a switch in alpha-helical packing from anti-parallel to parallel and rotation of the alpha-helices relative to the beta-strands. Hydrophobic side-chain size is therefore an important determinant of a protein fold.

---

Organizational Affiliation: 

Departments of Molecular Genetics and Structural Biology, The Wistar Institute, Philadelphia, PA 19104-4268, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
P53	A, B [auth C]	35	Homo sapiens	Mutation(s): 0  Gene Names: P53 TUMOR SUPPRESSOR, TP53, P53
UniProt & NIH Common Fund Data Resources
Find proteins for P04637 (Homo sapiens) Explore P04637  Go to UniProtKB:  P04637
PHAROS:  P04637

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 40 
• Conformers Submitted: 1 
• Selection Criteria: NO VIOLATIONS 
• OLDERADO: 1A1U Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-12-16 
• Released Date: 1998-04-08 
Deposition Author(s): Mccoy, M.A., Stavridi, E.S., Waterman, J.L.F., Wieczorek, A., Opella, S.J., Halezonetis, T.D.

Revision History  

• Version 1.0: 1998-04-08
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-16
  Changes: Database references, Derived calculations, Other