preferred_name: estrone 3-sulfate(in) + H(+)(out) <=> estrone 3-sulfate(out) + H(+)(in)
preferred_name_lc: estrone 3-sulfate(in) + h(+)(out) <=> estrone 3-sulfate(out) + h(+)(in)
label: estrone 3-sulfate(in) + H(+)(out) <=> estrone 3-sulfate(out) + H(+)(in)
label_lc: estrone 3-sulfate(in) + h(+)(out) <=> estrone 3-sulfate(out) + h(+)(in)