This correlates with changes of nuclear protein-binding activities to two motifs , site alpha and beta , within the CD28 minimal promoter .
this correlates with changes of nuclear protein-binding activities to two motifs , site alpha and beta , within the cd28 minimal promoter .
O O O O O B-other_name I-other_name I-other_name O O O O O O O O O O O B-protein_molecule O O O