The immunoglobulin heavy chain ( IgH ) intronic enhancer stimulates transcription from functional promoters in B lymphocytes but not other cell types .
the immunoglobulin heavy chain ( igh ) intronic enhancer stimulates transcription from functional promoters in b lymphocytes but not other cell types .
O B-protein_subunit I-protein_subunit I-protein_subunit O B-protein_subunit O O O O O O O O O B-cell_component I-cell_component O O O O O O