It is present in an active form in both B cells and non- B cells , where it can mediate transcriptional activation in vitro and in vivo .
it is present in an active form in both b cells and non- b cells , where it can mediate transcriptional activation in vitro and in vivo .
O O O O O O O O O B-cell_type I-cell_type O B-cell_type B-cell_type I-cell_type O O O O O B-other_name I-other_name O O O O O O