With the use of specific antibodies we have determined the composition of each complex using electrophoretic mobility shift assays .
with the use of specific antibodies we have determined the composition of each complex using electrophoretic mobility shift assays .
O O O O B-protein_family_or_group I-protein_family_or_group O O O O O O O O O B-other_name I-other_name I-other_name I-other_name O