Ferritin vs. Transferrin — What's the Difference?

Ferritin is a universal intracellular protein that stores iron and releases it in a controlled fashion. The protein is produced by almost all living organisms, including archaea, bacteria, algae, higher plants, and animals.

Transferrins are glycoproteins found in vertebrates which bind to and consequently mediate the transport of iron (Fe) through blood plasma. They are produced in the liver and contain binding sites for two Fe3+ ions.

An iron-containing protein complex, found principally in the intestinal mucosa, spleen, and liver, that functions as the primary form of iron storage in the body.

Any of a family of proteins that are found in the blood serum of humans and other vertebrates and that combine with and transport iron.

(protein) Any of a family of iron-carrying globular protein complexes consisting of 24 protein subunits.

(biochemistry) A glycoprotein, a beta globulin, in blood serum that combines with and transports iron.

A protein containing 20% iron that is found in the intestines and liver and spleen; it is one of the chief forms in which iron is stored in the body

A globulin in blood plasma that carries iron