tokens: The immune response to the X protein of human hepatitis B virus ( HBV ) was studied by epitope mapping by using a set of MS2-HBx fusion proteins and synthetic peptides .
folded_tokens: the immune response to the x protein of human hepatitis b virus ( hbv ) was studied by epitope mapping by using a set of ms2-hbx fusion proteins and synthetic peptides .
labels: O O O O O B-protein_molecule I-protein_molecule O B-virus I-virus I-virus I-virus O B-virus O O O O B-other_name I-other_name O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O B-peptide I-peptide O