Calcium pump 3 AT2A3_PIG 135 This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of the calcium. Transports calcium ions from the cytosol into the sarcoplasmic/endoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction. VCIFLTAILGLPEALIPVQLLWVNLVTDGLPATALGFNPPDLDIMEKLPRNPREALISGWLFFRYLAIGVYVGLATVAAATWWFLYDAEGPQVTFHQLRNFLKCSEDNPLFAGIDCEVFESRFPTTMALSVLVTI Sarcoplasmic/endoplasmic reticulum calcium ATPase 3 (Fragment) ATP2A3