tokens: Constitutive PKR activity was also detected in HIV-1 -infected cells as a result of low-level IFN production , since the addition of anti-IFN-alpha/beta antibody to the cells decreased PKR expression .
folded_tokens: constitutive pkr activity was also detected in hiv-1 -infected cells as a result of low-level ifn production , since the addition of anti-ifn-alpha/beta antibody to the cells decreased pkr expression .
labels: B-other_name B-protein_molecule O O O O O B-virus O O O O O O O B-protein_family_or_group O O O O O O B-protein_family_or_group I-protein_family_or_group O O O O B-protein_molecule O O