... Ferritin from the spleen of the Antarctic teleost Trematomus bernacchii is an M-type homopolymer Guiseppina Mignogna1, Roberta Chiaraluce1, Valerio Consalvi1, Stefano Cavallo1, ... Italy Ferritin from the spleen of the Antarctic teleost Trematomus bernacchii is composed of a single subunit that contains both the ferroxidase center residues, typical of mammalianH c hains, and ... ferritin homopolymer is able to both oxidize and accumulate ironefficiently (Fig. 3). Ferritin from the spleen of another Antarctic teleost, G. acuticeps , likewise is a homopolymer that is rich in iron...