preferred_name: leukotriene C4(in) + glutathione(out) => leukotriene C4(out) + glutathione(in)
preferred_name_lc: leukotriene c4(in) + glutathione(out) => leukotriene c4(out) + glutathione(in)
label: leukotriene C4(in) + glutathione(out) => leukotriene C4(out) + glutathione(in)
label_lc: leukotriene c4(in) + glutathione(out) => leukotriene c4(out) + glutathione(in)