In nonerythroid HL-60 cells in which the HS2 enhancer is inactive , long enhancer transcripts are not detectable .
in nonerythroid hl-60 cells in which the hs2 enhancer is inactive , long enhancer transcripts are not detectable .
O B-cell_line I-cell_line I-cell_line O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O B-RNA_family_or_group I-RNA_family_or_group I-RNA_family_or_group O O O O