ZIP8 (Zrt-, Irt-like Protein 8), encoded by the SLC39A8 gene, is a zinc, iron, and manganese transporter that plays critical roles in cellular metal homeostasis[@zip2020]. As a member of the ZIP (SLC39) family of metal transporters, ZIP8 imports essential trace metals into the cytoplasm, influencing numerous physiological processes including neurodevelopment, immune function, and antioxidant defense[@zip2021]. Dysregulation of ZIP8 has been implicated in various neurological disorders, making it a protein of interest in neurodegenerative disease research[@slca2019].
ZIP8 (Zrt-, Irt-like Protein 8), encoded by the SLC39A8 gene, is a zinc, iron, and manganese transporter that plays critical roles in cellular metal homeostasis[@zip2020]. As a member of the ZIP (SLC39) family of metal transporters, ZIP8 imports essential trace metals into the cytoplasm, influencing numerous physiological processes including neurodevelopment, immune function, and antioxidant defense[@zip2021]. Dysregulation of ZIP8 has been implicated in various neurological disorders, making it a protein of interest in neurodegenerative disease research[@slca2019].
Gene and Expression
The human SLC39A8 gene is located on chromosome 4q24 and encodes a protein of 462 amino acids. Key expression patterns include:
Brain: [Neurons](/entities/neurons), [astrocytes](/entities/astrocytes), and [microglia](/cell-types/microglia-neuroinflammation)
Intestine: Apical enterocytes for dietary absorption
Liver: Hepatocytes for systemic distribution
Kidney: Renal tubular cells
Immune cells: Activated macrophages and lymphocytes[@zip2020a]
Structure
ZIP8 is a member of the ZIP transporter family with distinctive features: