tokens: To clarify the etiological relationship between the two variants , we analyzed responsiveness to IL-4 of transfectants with four kinds of IL-4Ralpha carrying either Val or Ile at 50 and either Gln or Arg at 551 .
folded_tokens: to clarify the etiological relationship between the two variants , we analyzed responsiveness to il-4 of transfectants with four kinds of il-4ralpha carrying either val or ile at 50 and either gln or arg at 551 .
labels: O O O O O O O O O O O O O O B-protein_molecule O B-other_name O O O O B-protein_subunit O O B-amino_acid_monomer O B-amino_acid_monomer O B-protein_domain_or_region O O B-amino_acid_monomer O B-amino_acid_monomer O B-protein_domain_or_region O