Transferrin

Transferrin is a protein which transports iron- -fraction of blood, and which have molecular weights of 70,000–90,000. Only iron molecules-transferrin complex can be utilized by erythroblasts and reticulocytes for synthesis of hemoglobin in the body. Furthermore, transferrin sensitively reflects the level of iron stored in the body, and thus serves as an important index for iron metabolism and hematopoiesis. In addition, transferrin is known as an important substance for cell proliferation and bio-immunological defense of the human body, and thus reflects various pathological conditions.