Recombinant human H ferritin, K86Q and E107D mutant

Experimental Data Snapshot

  • Resolution: 2.10 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 

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This is version 1.3 of the entry. See complete history


High-Resolution X-Ray Structures of Human Apoferritin H-Chain Mutants Correlated with Their Activity and Metal-Binding Sites.

Toussaint, L.Bertrand, L.Hue, L.Crichton, R.R.Declercq, J.P.

(2007) J Mol Biol 365: 440

  • DOI: https://doi.org/10.1016/j.jmb.2006.10.010
  • Primary Citation of Related Structures:  
    2CEI, 2CHI, 2CIH, 2CLU, 2CN6, 2CN7, 2IU2

  • PubMed Abstract: 

    Ferritins are a family of proteins distributed widely in nature. In bacterial, plant, and animal cells, ferritin appears to serve as a soluble, bioavailable, and non-toxic form of iron provider. Ferritins from animal sources are heteropolymers composed of two types of subunit, H and L, which differ mainly by the presence (H) or absence (L) of active ferroxidase centres. We report the crystallographic structures of four human H apoferritin variants at a resolution of up to 1.5 Angstrom. Crystal derivatives using Zn(II) as redox-stable alternative for Fe(II), allows us to characterize the different metal-binding sites. The ferroxidase centre, which is composed of sites A and B, binds metal with a preference for the A site. In addition, distinct Zn(II)-binding sites were found in the 3-fold axes, 4-fold axes and on the cavity surface near the ferroxidase centre. To study the importance of the distance of the two metal atoms in the ferroxidase centre, single and double replacement of glutamate 27 (site A) and glutamate 107 (site B), the two axial ligands, by aspartate residues have been carried out. The consequences for metal binding and the correlation with Fe(II) oxidation rates are discussed.

  • Organizational Affiliation

    Biochemistry Unit, Université Catholique de Louvain, 1 Place Louis Pasteur, 1348 Louvain la Neuve, Belgium.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FERRITIN HEAVY CHAIN183Homo sapiensMutation(s): 2 
Gene Names: FTH1FTHFTHL6OK/SW-cl.84PIG15
UniProt & NIH Common Fund Data Resources
Find proteins for P02794 (Homo sapiens)
Explore P02794 
Go to UniProtKB:  P02794
PHAROS:  P02794
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02794
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.10 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 
  • Space Group: F 4 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 180.97α = 90
b = 180.97β = 90
c = 180.97γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-12-13
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-08
    Changes: Data collection, Experimental preparation, Other