Finally , mutations in the EBF binding sites diminished B29 promoter activity in pre-B cells while the same mutations did not have as striking an effect on the promoter function in B-cell lines of later differentiation stages .
finally , mutations in the ebf binding sites diminished b29 promoter activity in pre-b cells while the same mutations did not have as striking an effect on the promoter function in b-cell lines of later differentiation stages .
O O O O O B-protein_molecule O O O B-DNA_domain_or_region O O O B-cell_type I-cell_type O O O O O O O O O O O O O B-other_name I-other_name O B-cell_line I-cell_line O O O O O