Fe Transport and Storage Related to Humans and Pathogens and Oxygen

E. C. Theil, N. E. Le Brun

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Cellular iron transport into and between cells and the concentration inside cells in iron minerals within the giant, ion-channel, cage proteins, ferritins, are central to life. Ferritins are remarkably symmetric, soluble arrays of ion channels and oxidoreductases that initiate Fe3+O mineralization as iron concentrates and antioxidants. Direct Fe2+/riboregulator interactions control ferritin protein synthesis in animals, through an Fe2+ metabolic feedback loop amplified by regulated iron mineral dissolution and protein degradation. Host-protective siphoning of Fe2+ from pathogens to intracellular ferritins and pathogen use of H2O2 consuming-mini-ferritins to resist host oxidants illustrate inorganic artillery in disease.

Original languageEnglish
Title of host publicationBioinorganic Fundamentals and Applications
Subtitle of host publicationMetals in Natural Living Systems and Metals in Toxicology and Medicine
PublisherElsevier
Pages21-33
Number of pages13
Volume3
ISBN (Print)9780080965291
DOIs
Publication statusPublished - Aug 2013

Keywords

  • Antoxidant
  • Biominerals
  • Ferritin
  • Iron
  • Iron channels
  • Noncoding riboregulator (IRE) - RNA
  • Oxidoreductase
  • Protein nanocages

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