PMCA (Plasma membrane calcium ATPase)

Plasma membrane calcium ATPase (PMCA) is a protein found in cell membranes that helps regulate calcium levels inside cells. It operates like a pump, using energy from ATP (the cell's energy currency) to move calcium ions out of the cell. Maintaining the right calcium balance is crucial for various cellular functions, including muscle contraction, nerve signaling, and overall cellular health. When PMCA works properly, it ensures that excess calcium is removed, preventing potential damage and maintaining normal cellular activities.