Northern blot analysis of polyadenylated RNA purified from activated human B cells revealed a single mRNA transcript of approximately 2 . 3 kb .
northern blot analysis of polyadenylated rna purified from activated human b cells revealed a single mrna transcript of approximately 2 . 3 kb .
O O O O B-RNA_family_or_group I-RNA_family_or_group O O B-cell_type I-cell_type I-cell_type I-cell_type O O B-RNA_family_or_group I-RNA_family_or_group I-RNA_family_or_group O O O O O O O