2FHA

HUMAN H CHAIN FERRITIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Comparison of the three-dimensional structures of recombinant human H and horse L ferritins at high resolution.

Hempstead, P.D.Yewdall, S.J.Fernie, A.R.Lawson, D.M.Artymiuk, P.J.Rice, D.W.Ford, G.C.Harrison, P.M.

(1997) J.Mol.Biol. 268: 424-448

  • DOI: 10.1006/jmbi.1997.0970
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mammalian ferritins are 24-mers assembled from two types of polypeptide chain which provide the molecule with different functions. H(eavy) chains catalyse the first step in iron storage, the oxidation of iron(II). L(ight) chains promote the nucleatio ...

    Mammalian ferritins are 24-mers assembled from two types of polypeptide chain which provide the molecule with different functions. H(eavy) chains catalyse the first step in iron storage, the oxidation of iron(II). L(ight) chains promote the nucleation of the mineral ferrihydrite enabling storage of iron(III) inside the protein shell. We report here the comparison of the three-dimensional structures of recombinant human H chain (HuHF) and horse L chain (HoLF) ferritin homopolymers, which have been refined at 1.9 A resolution. There is 53% sequence identity between these molecules, and the two structures are very similar, the H and L subunit alpha-carbons superposing to within 0.5 A rms deviation with 41 water molecules in common. Nevertheless, there are significant important differences which can be related to differences in function. In particular, the centres of the four-helix bundles contain distinctive groups of hydrophilic residues which have been associated with ferroxidase activity in H chains and enhanced stability in L chains. L chains contain a group of glutamates associated with mineralisation within the iron storage cavity of the protein.


    Related Citations: 
    • Solving the Structure of Human H Ferritin by Genetically Engineering Intermolecular Crystal Contacts
      Lawson, D.M.,Artymiuk, P.J.,Yewdall, S.J.,Smith, J.M.,Livingstone, J.C.,Treffry, A.,Luzzago, A.,Levi, S.,Arosio, P.,Cesareni, G.,Thomas, C.D.,Shaw, W.V.,Harrison, P.M.
      (1991) Nature 349: 541


    Organizational Affiliation

    Krebs Institute for Biomolecular Research, Department of Molecular Biology and Biotechnology, University of Sheffield, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FERRITIN
A
183Homo sapiensMutations: Q87K
Gene Names: FTH1 (FTH, FTHL6)
EC: 1.16.3.1
Find proteins for P02794 (Homo sapiens)
Go to Gene View: FTH1
Go to UniProtKB:  P02794
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Work: 0.186 
  • Space Group: F 4 3 2
Unit Cell:
Length (Å)Angle (°)
a = 184.800α = 90.00
b = 184.800β = 90.00
c = 184.800γ = 90.00
Software Package:
Software NamePurpose
TNTrefinement
CCP4data scaling
ROTAVATA)data scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-09-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance