tokens: We generated conditional EBV mutants by expressing EBNA2 as chimeric fusion protein with the hormone binding domain of the estrogen receptor on the genetic background of the virus .
folded_tokens: we generated conditional ebv mutants by expressing ebna2 as chimeric fusion protein with the hormone binding domain of the estrogen receptor on the genetic background of the virus .
labels: O O O B-virus O O O B-protein_molecule O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O B-protein_molecule I-protein_molecule O O O O O O O O