Iron-binding proteins and enzymes

Iron-binding proteins and enzymes constitute a diverse group of molecules that utilize iron as a critical cofactor for biological activity, often within heme groups or iron-sulfur clusters (Source: UniProt). This group encompasses essential proteins such as hemoglobin for oxygen transport, ferritin for intracellular iron storage, and transferrin for systemic transport, as well as numerous enzymes like cytochromes involved in electron transport and drug metabolism (Source: NIH, StatPearls). Because iron is redox-active and can catalyze the formation of harmful free radicals via the Fenton reaction, its sequestration and transport are tightly regulated (Source: PubMed). Clinical interventions targeting these proteins include iron chelators like deferasirox for transfusion-related iron overload and various iron salts or complexes for treating iron-deficiency anemia (Source: FDA). Modern drug development also focuses on the hepcidin-ferroportin axis to treat disorders of iron distribution associated with chronic inflammation and rare genetic diseases (Source: Nature Reviews Drug Discovery). Additionally, iron-dependent enzymes like ribonucleotide reductase are targeted in oncology to inhibit DNA synthesis in rapidly dividing cells (Source: Journal of Biological Chemistry). Overall, these proteins are central to metabolic health and represent a broad landscape for therapeutic modulation across hematology, oncology, and neurology (Source: Lancet Haematology).

Other names

MetalloproteinsIron-containing proteinsHeme proteinsNon-heme iron proteinsSideroproteins

Iron chelation to remove excess systemic iron (Source: StatPearls); iron supplementation to restore intracellular and systemic levels (Source: Mayo Clinic); modulation of iron export via ferroportin inhibition or hepcidin agonism (Source: Hepatology); and inhibition of iron-dependent enzymes like ribonucleotide reductase (Source: PubMed).