SLC4A8

SLC4A8 is a gene that encodes for a protein known as the Sodium Bicarbonate Cotransporter 4 (NBCe2). This protein is a member of the SLC4 family, which is involved in the regulation of electrolyte and pH balance in various tissues throughout the body. The SLC4A8 gene is located on human chromosome 12, specifically at 12q23.3.

The protein encoded by SLC4A8 functions as an electrogenic sodium and bicarbonate cotransporter, primarily expressed in the brain, heart, and skeletal muscle. It plays a critical role in the maintenance of acid-base balance, intracellular pH, and cell volume regulation. Alterations in the expression or function of this cotransporter can lead to various diseases and disorders, including some forms of hypertension, epilepsy, and chronic pain.

Function

SLC4A8 facilitates the movement of sodium and bicarbonate ions across cell membranes, contributing to the regulation of pH levels in cells and tissues. This process is vital for numerous physiological functions, including nerve impulse transmission, muscle contraction, and the maintenance of fluid balance.

Clinical Significance

Mutations in the SLC4A8 gene have been associated with several neurological disorders, indicating its importance in neural function and development. Research has also suggested a link between SLC4A8 and conditions such as migraines and certain types of epilepsy, highlighting the gene's role in neuronal excitability and signal transduction.

Research

Ongoing research aims to further elucidate the precise mechanisms by which SLC4A8 and its encoded protein contribute to health and disease. Understanding these pathways may lead to the development of new therapeutic strategies for conditions associated with dysregulation of ion transport and pH balance.

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