Cited by 777Iron Metabolism and DisordersEnzyme Structure and FunctionProtein Structure and Dynamics

Solving the structure of human H ferritin by genetically engineering intermolecular crystal contacts

Lawson, David M., Artymiuk, Peter J., Yewdall, Stephen J., Smith, John M. A., Livingstone, J. Craig, Treffry, Amyra, Luzzago, Alessandra, Levi, Sonia +5 more·1991·Nature

Abstract

Ferritin is important in iron homeostasis. Its twenty-four chains of two types, H and L, assemble as a hollow shell providing an iron-storage cavity. Ferritin molecules in cells containing high levels of iron tend to be rich in L chains, and may have a long-term storage function, whereas H-rich ferritins are more active in iron metabolism. The molecular basis for the greater activity of H-rich ferritins has until now been obscure, largely because the structure of H-chain ferritin has remained unknown owing to the difficulties in obtaining crystals ordered enough for X-ray crystallographic analysis. Here we report the three-dimensional structure of a human ferritin H-chain homopolymer. By genetically engineering a change in the sequence of the intermolecular contact region, we obtained crystals isomorphous with the homologous rat L ferritin and of high enough quality for X-ray diffraction analysis. The X-ray structure of human H ferritin shows a novel metal site embedded within each of its four-helix bundles and we suggest that ferroxidase activity associated with this site accounts for its rapid uptake of iron.

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Crossref · 10.1038/349541a0

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28 of 28 references verified0 citation errors · 0 not checkable

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  • Iron from the labile iron pool not used for metabolic processes is stored in the cytosol in the ferritin nano-cage, composed of 24 subunits of FTH1 and FTL1.

    “Iron from the LIP which is not used for metabolic processes is stored in the cytosol in the “ferritin nano-cage,” a cytosolic heteropolymer composed of 24 subunits of heavy (FTH1) and light (FTL1) ferritin chains (Lawson et al., 1991; Figure 1).”

    From The Role of Iron Regulation in Immunometabolism and Immune-Related Disease (2019) · cites this paper as Lawson et al., 1991

  • Excess iron concentrations are particularly harmful because the highly oxidative microenvironment of the brain lends itself to the production of ROS.

    “At the other end of the spectrum, excess iron concentrations are particularly harmful because the highly oxidative microenvironment of the brain lends itself to the production of ROS (180).”

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Authors
Lawson, D. M., Artymiuk, P. J., Yewdall, S. J., Smith, J. M. A., Livingstone, J. C., Treffry, A., Luzzago, A., Levi, S., Arosio, P., Cesareni, G., Thomas, C. D., Shaw, W. V., & Harrison, P. M.
Affiliations
  • University of Sheffield (GB)
  • European Molecular Biology Laboratory (DE)
  • University of Milan (IT)
  • University of Rome Tor Vergata (IT)
  • University of Leicester (GB)
Venue
Nature
Published
1991-02
Volume
349
Issue
6309
Pages
541-544
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2108816504
Cited by
777
References
28
Citations by year
2026: 18 · 2025: 21 · 2024: 19 · 2023: 22 · 2022: 20 · 2021: 27 · 2020: 25 · 2019: 19 · 2018: 21 · 2017: 28 · 2016: 22 · 2015: 21 · 2014: 30 · 2013: 30 · 2012: 26
FWCI
19.34
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
Funders
Wellcome Trust
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
iron homeostasis, iron storage, ferroxidase activity, isomorphous crystals, four-helix bundle, metal sites, iron absorption
MeSH terms
Amino Acid Sequence, Animals, Binding Sites, Computer Graphics, Crystallography, Ferritins, Humans, Iron, Models, Molecular, Molecular Sequence Data, Molecular Weight, Recombinant Proteins, X-Ray Diffraction, Rats

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