Further , we observe that TAR-deleted mutants of HIV-1 demonstrate normal late gene expression in glial cells as evidenced by syncytia formation and production of viral p24 antigen .
further , we observe that tar-deleted mutants of hiv-1 demonstrate normal late gene expression in glial cells as evidenced by syncytia formation and production of viral p24 antigen .
O O O O O B-DNA_family_or_group I-DNA_family_or_group O B-virus O B-other_name I-other_name I-other_name I-other_name O B-cell_type I-cell_type O O O B-other_name I-other_name O O O B-protein_molecule I-protein_molecule I-protein_molecule O