Developing erythrocytes take up exceptionally large amounts of iron, which must be transferred to mitochondria for incorporation into heme. This massive iron flux must be precisely controlled to permit the coordinated synthesis of heme and hemoglobin while avoiding the toxic effects of chemically reactive iron. In cultured animal cells, iron chaperones
Moon-Suhn Ryu, Deliang Zhang, Olga Protchenko, Minoo Shakoury-Elizeh, Caroline C. Philpott
Model of changing paths of iron flux in developing erythrocytes.