2 Na(+)(in) + 3 H(+)(out) <=> 2 Na(+)(out) + 3 H(+)(in)
2 na(+)(in) + 3 h(+)(out) <=> 2 na(+)(out) + 3 h(+)(in)
2 Na(+)(in) + 3 H(+)(out) <=> 2 Na(+)(out) + 3 H(+)(in)
2 na(+)(in) + 3 h(+)(out) <=> 2 na(+)(out) + 3 h(+)(in)