Here we show that in a MPC11 plasmacytoma x fibroblast environment , the IgH 3' enhancer is transcriptionally inactive .
here we show that in a mpc11 plasmacytoma x fibroblast environment , the igh 3' enhancer is transcriptionally inactive .
O O O O O O B-cell_line B-other_name I-other_name I-other_name I-other_name O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O