From nuclear runoff experiments , we found that one subunit in particular , the B2 isoform ( Mr = 56 , 000 ) , was amplified primarily by transcriptional means .
from nuclear runoff experiments , we found that one subunit in particular , the b2 isoform ( mr = 56 , 000 ) , was amplified primarily by transcriptional means .
O O O O O O O O O O O O O O B-protein_subunit I-protein_subunit O O O O O O O O O O O O B-other_name I-other_name O