Adenosine triphosphate or ATP is the body's main source of energy. It mediates the transfer of energy between cells, tissues and organs during muscle contraction and the cardiac cycle. But at the same time, ATP can also lead to changes in the state of cells, tissues and organs.
One of the mechanisms associated with this change is the work of enzymes and their interaction with ATP molecules. Among these enzymes are ATPases, which use energy derived from the molecular bonds of ATP to transport substrates. For example, the calcium pump ATPase is located inside cells and is responsible for regulating the calcium concentration in those cells. This process is called the exchange of ionic compounds between the cell and the external environment.
When the concentration of ATP in the cell decreases, the calcium pump begins to work faster and emissions