ATP1A4

Sodium/potassium-transporting ATPase subunit alpha-4 is a protein in humans that is encoded by ATP1A4 gene. This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Plays a role in sperm motility.