Four specific protein-DNA complexes were detected after incubation of nuclear extracts ( NE ) from T3-responsive pituitary ( GH3 ) cells with a TREp -containing DNA fragment .
four specific protein-dna complexes were detected after incubation of nuclear extracts ( ne ) from t3-responsive pituitary ( gh3 ) cells with a trep -containing dna fragment .
O O B-protein_complex I-protein_complex O O O O O B-cell_component I-cell_component O B-cell_component O O B-cell_line I-cell_line I-cell_line I-cell_line I-cell_line I-cell_line O O B-DNA_domain_or_region O O O O