Two stable B cell lines were established : R59Z activator cells were used to induce lytic EBV expression in a constitutive manner by the production of the BZLF 1 trans-activator ( Zta ) .
two stable b cell lines were established : r59z activator cells were used to induce lytic ebv expression in a constitutive manner by the production of the bzlf 1 trans-activator ( zta ) .
O O B-cell_line I-cell_line I-cell_line O O O B-cell_line I-cell_line I-cell_line O O O O B-other_name B-virus O O O O O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O