Structure determination of the transactivation domain of p53 in complex with S100A4 using annexin A2 as a crystallization chaperone

Experimental Data Snapshot

  • Resolution: 3.10 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.234 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Structure Determination of the Transactivation Domain of p53 in Complex with S100A4 Using Annexin A2 as a Crystallization Chaperone.

Ecsedi, P.Gogl, G.Hof, H.Kiss, B.Harmat, V.Nyitray, L.

(2020) Structure 28: 943-953.e4

  • DOI: https://doi.org/10.1016/j.str.2020.05.001
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    To fully understand the environmental factors that influence crystallization is an enormous task, therefore crystallographers are still forced to work "blindly" trying as many crystallizing conditions and mutations to improve crystal packing as possible. Numerous times these random attempts simply fail even when using state-of-the-art techniques. As an alternative, crystallization chaperones, having good crystal-forming properties, can be invoked. Today, the almost exclusively used such protein is the maltose-binding protein (MBP) and crystallographers need other widely applicable options. Here, we introduce annexin A2 (ANXA2), which has just as good, if not better, crystal-forming ability than the wild-type MBP. Using ANXA2 as heterologous fusion partner, we were able to solve the atomic resolution structure of a challenging crystallization target, the transactivation domain (TAD) of p53 in complex with the metastasis-associated protein S100A4. p53 TAD forms an asymmetric fuzzy complex with the symmetric S1004 and could interfere with its function.

  • Organizational Affiliation

    Department of Biochemistry, ELTE Eötvös Loránd University, Budapest 1117, Hungary.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cellular tumor antigen p53,Protein S100-A4,Protein S100-A4,Annexin A2
A, B
553Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for P04637 (Homo sapiens)
Explore P04637 
Go to UniProtKB:  P04637
GTEx:  ENSG00000141510 
Find proteins for P07355 (Homo sapiens)
Explore P07355 
Go to UniProtKB:  P07355
GTEx:  ENSG00000182718 
Find proteins for P26447 (Homo sapiens)
Explore P26447 
Go to UniProtKB:  P26447
GTEx:  ENSG00000196154 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP07355P04637P26447
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on GOL

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
O [auth B],
P [auth B]
C3 H8 O3
Query on CA

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
H [auth A]
I [auth A]
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B]
Experimental Data & Validation

Experimental Data

  • Resolution: 3.10 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.234 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.96α = 90
b = 62.77β = 90.26
c = 106.02γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Hungarian Academy of SciencesHungary--

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-27
    Type: Initial release
  • Version 1.1: 2020-06-10
    Changes: Database references
  • Version 1.2: 2020-08-19
    Changes: Database references, Derived calculations
  • Version 1.3: 2022-12-07
    Changes: Advisory, Database references, Derived calculations
  • Version 1.4: 2024-01-31
    Changes: Data collection, Refinement description