Na(+)(in) + diphosphate + H2O = Na(+)(out) + 2 phosphate + H(+)
na(+)(in) + diphosphate + h2o = na(+)(out) + 2 phosphate + h(+)
"Na(+)-translocating membrane pyrophosphatase"
"na(+)-translocating membrane pyrophosphatase"