Ca(2+)(in) + ATP + H2O <=> Ca(2+)(out) + ADP + phosphate + H(+)
ca(2+)(in) + atp + h2o <=> ca(2+)(out) + adp + phosphate + h(+)
Ca(2+)(in) + ATP + H2O <=> Ca(2+)(out) + ADP + phosphate + H(+)
ca(2+)(in) + atp + h2o <=> ca(2+)(out) + adp + phosphate + h(+)