tokens: Interestingly , reexpression of human MHC class II genes in RJ 2 . 2 . 5 x mouse spleen cell hybrids is associated with partial reversion of DRA promoter occupancy to the Raji pattern .
folded_tokens: interestingly , reexpression of human mhc class ii genes in rj 2 . 2 . 5 x mouse spleen cell hybrids is associated with partial reversion of dra promoter occupancy to the raji pattern .
labels: O O O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-other_name I-other_name O