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F4503 Sigma

Ferritin from equine spleen

Type I, saline solution



Related Categories Antioxidants and Cytoprotectants, Cancer Research, Cancer Research Enzymes, Cell Biology, Cell Signaling and Neuroscience,
sterility   sterile-filtered
type   Type I
form   saline solution
mol wt   H subunit mol wt ~21 kDa
  L subunit mol wt ~19 kDa
color   red to brown
cation traces   Cd: ≤1% (as % of ferritin)
storage temp.   2-8°C


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Biochem/physiol Actions

A ubiquitous iron storage protein that plays a key role in iron metabolism. It serves as an intracellular iron reserve (particularly in spleen, liver, intestinal mucosa, and bone marrow) and functions in iron detoxification. Studies have shown that ferritin iron incorporation is mediated by a ferroxidase activity associated with ferritin H subunits and a nucleation center associated with ferritin L subunits. Release of iron from ferritin has an essential role in iron-dependent lipid peroxidation and may contribute to free radical-induced cell damage in vivo. Therefore, by binding iron, ferritin may function as an antioxidant.

General description

A shell of 24 protein subunits (apoferritin) and a core Fe 3+ ions with a peptide MW of 440 kDa. Review of the ferritin-like superfamily of iron-storage proteins, virtually ubiquitous in life on earth.

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

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