preferred_name: D-xylose(in) + H(+)(in) = D-xylose(out) + H(+)(out)
preferred_name_lc: d-xylose(in) + h(+)(in) = d-xylose(out) + h(+)(out)
label: D-xylose(in) + H(+)(in) = D-xylose(out) + H(+)(out)
label_lc: d-xylose(in) + h(+)(in) = d-xylose(out) + h(+)(out)