preferred_name: L-histidine(in) + Na(+)(in) <=> L-histidine(out) + Na(+)(out)
preferred_name_lc: l-histidine(in) + na(+)(in) <=> l-histidine(out) + na(+)(out)
label: L-histidine(in) + Na(+)(in) <=> L-histidine(out) + Na(+)(out)
label_lc: l-histidine(in) + na(+)(in) <=> l-histidine(out) + na(+)(out)