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apoferritin
apoferritin[¦ap·ə¦fer·ət·ən] (biochemistry) A protein found in intestinal mucosa cells that has the ability to combine with ferric ion. apoferritin
apoferritin [ap″o-fer´ĭ-tin] an apoprotein that can bind many atoms of iron per molecule to form ferritin, the form in which iron is stored in the liver and other tissues.ap·o·fer·ri·tin (ap'ō-fer'i-tin), A protein in the intestinal wall that combines with a ferric hydroxide-phosphate compound to form ferritin, the first stage in the absorption of iron. Apoferritin is an oligomer of 24 chains in a spheric structure; the cavity of this sphere can contain up to 4,500 Fe3+ ions.ap·o·fer·ri·tin (ap-ō-fer'i-tin) A protein in the intestinal wall that combines with a ferric hydroxide-phosphate compound to form ferritin, the first stage in the absorption of iron. apoferritin A substance with which absorbed iron may be complexed in the body to form a ferritin store. Ferritin is one of the two forms of iron store in the cells of the body. The other is haemosiderin. |