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