SERCAs (Sarco/endoplasmic reticulum calcium ATPases)

SERCAs, or Sarco/endoplasmic reticulum calcium ATPases, are proteins found in muscle cells and other types of cells. They play a crucial role in regulating calcium levels within the cell by pumping calcium ions from the cytoplasm into the sarcoplasmic or endoplasmic reticulum. This process is essential for muscle contraction and relaxation, as well as various cellular functions. By using energy from ATP (the cell's energy currency), SERCAs help maintain the balance of calcium, ensuring that cells respond appropriately to signals and function effectively. Proper SERCA function is vital for overall muscle and cell health.