a homogeneous protein, found esp. in the intestinal mucosa and the liver, that interacts with a ferric hydroxide-ferric phosphate complex to form ferritin.
Main Entry: ap·o·fer·ri·tin Pronunciation: "ap-&-'fer-&t-&n Function: noun : a colorless crystalline protein capableof storing iron in bodily cells especially of the liver by combining with iron to form ferritin
apoferritin ap·o·fer·ri·tin (āp'ə-fěr'ĭ-tĭn) n. A protein present in the intestinal mucosa that binds and stores iron by combining with a ferric hydroxide-phosphate compound to form ferritin.