tokens: We have described the isolation of chemically induced CEM subclones that express CD4 receptors and bind soluble gp120 , yet show a markedly reduced susceptibility to infection with HIV-1 .
folded_tokens: we have described the isolation of chemically induced cem subclones that express cd4 receptors and bind soluble gp120 , yet show a markedly reduced susceptibility to infection with hiv-1 .
labels: O O O O O O O O B-cell_line I-cell_line O O B-protein_family_or_group I-protein_family_or_group O O O B-protein_molecule O O O O O O O O O O B-virus O