The B3 factor was only slightly evident in nuclei of uninfected cells but was readily detectable in nuclei of infected monocytes .
the b3 factor was only slightly evident in nuclei of uninfected cells but was readily detectable in nuclei of infected monocytes .
O B-protein_molecule I-protein_molecule O O O O O B-cell_component O B-cell_type I-cell_type O O O O O B-cell_component O B-cell_type I-cell_type O