The Tat protein of human immunodeficiency virus type 1 ( HIV-1 ) is essential for productive infection and is a potential target for antiviral therapy .
the tat protein of human immunodeficiency virus type 1 ( hiv-1 ) is essential for productive infection and is a potential target for antiviral therapy .
O B-protein_molecule I-protein_molecule O B-virus I-virus I-virus I-virus I-virus O B-virus O O O O O O O O O O O O B-other_name I-other_name O