NF-kappa B is a protein complex which functions in concert with the tat-I gene product to stimulate human immunodeficiency virus ( HIV ) transcription .
nf-kappa b is a protein complex which functions in concert with the tat-i gene product to stimulate human immunodeficiency virus ( hiv ) transcription .
B-protein_molecule I-protein_molecule O O B-protein_complex I-protein_complex O O O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O B-virus I-virus I-virus O B-virus O O O