IREB2 (Iron Responsive Element Binding Protein 2): IREB2 is a gene that plays a key role in iron metabolism by regulating genes involved in iron storage and transport. It helps maintain iron balance in the body by binding to iron-responsive elements (IREs) in the mRNA of these genes, controlling their stability and translation. Proper function of IREB2 is essential to prevent iron-related health issues like anemia or iron overload disorders such as hemochromatosis. Studying IREB2 is important for understanding iron metabolism and its links to conditions including neurodegenerative diseases.