label: an aromatic L-alpha-amino acid(out) + 3,3',5-triiodo-L-thyronine(in) => an aromatic L-alpha-amino acid(in) + 3,3',5-triiodo-L-thyronine(out)
label_lc: an aromatic l-alpha-amino acid(out) + 3,3',5-triiodo-l-thyronine(in) => an aromatic l-alpha-amino acid(in) + 3,3',5-triiodo-l-thyronine(out)