tokens: Susceptibility to natural killer cells and down regulation of MHC class I expression in adenovirus 12 transformed cells are regulated by different E1A domains .
folded_tokens: susceptibility to natural killer cells and down regulation of mhc class i expression in adenovirus 12 transformed cells are regulated by different e1a domains .
labels: O O B-cell_type I-cell_type I-cell_type O O O O B-protein_complex O O O O B-virus I-virus O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O