Moreover , ectopic Id1 repressed E ( gre ) -directed but not EA/S -directed MLV transcription in lymphoid cell lines .
moreover , ectopic id1 repressed e ( gre ) -directed but not ea/s -directed mlv transcription in lymphoid cell lines .
O O B-protein_molecule I-protein_molecule O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-DNA_domain_or_region O B-virus O O B-cell_line I-cell_line I-cell_line O