arsenate(in) + H(+)(in) = arsenate(out) + H(+)(out)
arsenate(in) + h(+)(in) = arsenate(out) + h(+)(out)
arsenate(in) + H(+)(in) = arsenate(out) + H(+)(out)
arsenate(in) + h(+)(in) = arsenate(out) + h(+)(out)