KCNJ1 Gene
The KCNJ1 gene belongs to a large family of genes that produce potassium channels. These channels, which transport ions of potassium into and out of cells, play a key role in a cell’s ability to generate and transmit electrical signals. The transport of potassium ions by ROMK is necessary for the normal function of another ion transporter called NKCC2 and is produced from the SLC12A1 gene. This transporter plays an essential role in the reabsorption of salt from the urine back into the bloodstream. The retention of salt affects the body’s fluid levels and helps maintain blood pressure. Mutations in this gene have been associated with antenatal Bartter syndrome, which is characterized by salt wasting, hypokalemic alkalosis, hypercalciuria, and low blood pressure.
