1IES

TETRAGONAL CRYSTAL STRUCTURE OF NATIVE HORSE SPLEEN FERRITIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 

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This is version 1.3 of the entry. See complete history


Literature

Comparison of the structures of the cubic and tetragonal forms of horse-spleen apoferritin.

Granier, T.Gallois, B.Dautant, A.Langlois d'Estaintot, B.Precigoux, G.

(1997) Acta Crystallogr D Biol Crystallogr 53: 580-587

  • DOI: https://doi.org/10.1107/S0907444997003314
  • Primary Citation of Related Structures:  
    1IER, 1IES

  • PubMed Abstract: 

    Horse-spleen apoferritin is known to crystallize in three different space groups, cubic F432, tetragonal P42(1)2 and orthorhombic P2(1)2(1)2. A structure comparison of the cubic and tetragonal forms is presented here. Both crystal forms were obtained by the vapor-diffusion technique and data were collected at 2.26 A (cubic crystal) and 2.60 A (tetragonal crystal) resolution. Two main differences were observed between these crystal structures: (i) whereas intermolecular contacts only involve salt-bridge type interactions via cadmium ions in the cubic structure, two types of interactions are observed in the tetragonal crystal (cadmium-ion-mediated salt bridges and hydrogen-bonding interactions) and (ii) cadmium ions bound in the threefold axes of ferritin molecules exhibit lower site-occupation factors in the tetragonal structure than in the cubic one.


  • Organizational Affiliation

    Unité de Biophysique Structurale, EP534 CNRS, Université Bordeaux 1, Talence, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FERRITIN
A, B, C, D, E
A, B, C, D, E, F
174Equus caballusMutation(s): 0 
UniProt
Find proteins for P02791 (Equus caballus)
Explore P02791 
Go to UniProtKB:  P02791
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02791
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.201 
  • R-Value Observed: 0.201 
  • Space Group: P 4 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 147.229α = 90
b = 147.229β = 90
c = 152.576γ = 90
Software Package:
Software NamePurpose
AMoREphasing
X-PLORrefinement
XDSdata reduction
MARSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-01-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2023-08-09
    Changes: Database references, Derived calculations, Refinement description