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 language | English |
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Title of host publication | Bioinorganic Fundamentals and Applications |
Subtitle of host publication | Metals in Natural Living Systems and Metals in Toxicology and Medicine |
Publisher | Elsevier |
Pages | 21-33 |
Number of pages | 13 |
Volume | 3 |
ISBN (Print) | 9780080965291 |
DOIs | |
Publication status | Published - Aug 2013 |
Keywords
- Antoxidant
- Biominerals
- Ferritin
- Iron
- Iron channels
- Noncoding riboregulator (IRE) - RNA
- Oxidoreductase
- Protein nanocages