D-cycloserine(in) + H(+)(in) <=> D-cycloserine(out) + H(+)(out)
d-cycloserine(in) + h(+)(in) <=> d-cycloserine(out) + h(+)(out)
D-cycloserine(in) + H(+)(in) <=> D-cycloserine(out) + H(+)(out)
d-cycloserine(in) + h(+)(in) <=> d-cycloserine(out) + h(+)(out)