SLC39A1 is a gene that encodes a protein responsible for transporting zinc and other metal ions across cell membranes. This protein plays a crucial role in maintaining cellular zinc levels, which are important for various biological processes, including enzyme function and immune response. Mutations or dysregulation of SLC39A1 can lead to health issues, such as impaired zinc absorption and related disorders. Research continues to explore its role in conditions like acrodermatitis enteropathica, a rare genetic disorder characterized by zinc deficiency, highlighting the importance of this gene in human health.