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