It is located in the nucleus in mature B cells , but is present in other cell types as an inactive cytoplasmic complex .
it is located in the nucleus in mature b cells , but is present in other cell types as an inactive cytoplasmic complex .
O O O O O O O B-cell_type I-cell_type I-cell_type O O O O O O O O O O B-protein_complex I-protein_complex I-protein_complex O