( iv ) No other EBV genes were required for EBNA-2 transactivation of LMP1 since cotransfection of recombinant EBNA-2 expression vectors and genomic LMP1 DNA fragments enhanced LMP1 expression in the EBV-negative B-lymphoma cell lines BJAB , Louckes , and BL30 .
( iv ) no other ebv genes were required for ebna-2 transactivation of lmp1 since cotransfection of recombinant ebna-2 expression vectors and genomic lmp1 dna fragments enhanced lmp1 expression in the ebv-negative b-lymphoma cell lines bjab , louckes , and bl30 .
O O O O O B-DNA_family_or_group I-DNA_family_or_group O O O B-protein_molecule O O B-protein_molecule O B-other_name O B-DNA_family_or_group B-protein_molecule O O O O B-protein_molecule O O O B-protein_molecule O O O B-cell_line I-cell_line I-cell_line I-cell_line B-cell_line O B-cell_line O O B-cell_line O