Na+/K+-ATPase

Na+/K+-ATPase (Sodium-potassium adenosine triphosphatase, also known as Na+/K+ pump, sodium-potassium pump, or sodium pump) is an antiporter enzyme (EC 3.6.3.9) (an electrogenic transmembrane ATPase) located in the plasma membrane of all animal cells.

Read more about Na+/K+-ATPase:  Sodium-potassium Pumps, Function, Mechanism, Discovery, Genes