tokens: However , presentation of endogenously synthesized IE1 can be restored when U373 MG cells are transfected with CIITA prior to infection with HCMV .
folded_tokens: however , presentation of endogenously synthesized ie1 can be restored when u373 mg cells are transfected with ciita prior to infection with hcmv .
labels: O O O O O O B-protein_molecule O O O O B-cell_line I-cell_line I-cell_line O O O B-DNA_domain_or_region O O O O B-virus O