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The cellular machinery of Ferroplasma acidiphilum is iron-protein-dominated

Author

Listed:
  • Manuel Ferrer

    (CSIC, Institute of Catalysis, Cantoblanco)

  • Olga V. Golyshina

    (HZI-Helmholtz Centre for Infection Research)

  • Ana Beloqui

    (CSIC, Institute of Catalysis, Cantoblanco)

  • Peter N. Golyshin

    (HZI-Helmholtz Centre for Infection Research
    Carolo-Wilhelmina Technical University of Braunschweig)

  • Kenneth N. Timmis

    (HZI-Helmholtz Centre for Infection Research
    Carolo-Wilhelmina Technical University of Braunschweig
    University of Essex)

Abstract

An iron constitution Ferroplasma acidiphilum is an extremophilic microbe found in iron- and heavy-metal-rich acidic habitats, such as pyritic acidic mine drainage waters. Most known living organisms, including close relatives of F. acidiphilum that share its habitats, contain just a few conserved iron-metalloproteins. But the metabolic machinery of F. acidiphilum is unique in that its proteome contains a high percentage of iron-metalloproteins. The iron atoms in many of these proteins may act as 'iron rivets' stabilizing their three-dimensional structure. It is possible that the F. acidiphilum lineage evolved entirely within the pyrite habitat, and that its protein repertoire might represent a throwback to an earlier form of cellular life.

Suggested Citation

  • Manuel Ferrer & Olga V. Golyshina & Ana Beloqui & Peter N. Golyshin & Kenneth N. Timmis, 2007. "The cellular machinery of Ferroplasma acidiphilum is iron-protein-dominated," Nature, Nature, vol. 445(7123), pages 91-94, January.
    • Handle: RePEc:nat:nature:v:445:y:2007:i:7123:d:10.1038_nature05362
    DOI: 10.1038/nature05362
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