Ferritin

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ferritin A protein, found predominantly in the tissues of the liver and spleen but also present in nearly all cells of the body, that is used for the storage of iron. A ferritin molecule, which is spherical and has a crystalline core, can store as many as 4000 iron atoms, which can be released when required for haemoglobin formation. Compare transferrin.

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ferritin See iron storage.