2'-deoxyadenosine(in) + H(+)(in) <=> 2'-deoxyadenosine(out) + H(+)(out)
2'-deoxyadenosine(in) + h(+)(in) <=> 2'-deoxyadenosine(out) + h(+)(out)
2'-deoxyadenosine(in) + H(+)(in) <=> 2'-deoxyadenosine(out) + H(+)(out)
2'-deoxyadenosine(in) + h(+)(in) <=> 2'-deoxyadenosine(out) + h(+)(out)