ATP2A3

ATP2A3

A gene on chromosome 17p13.3 that encodes a SERCA Ca2+-ATPase, an intracellular pump located in the sarcoplasmic or endoplasmic reticula of muscle cells, which catalyses the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen, and is involved in muscle contraction and relaxation.