Resolution of whole cell extract through two chromatographic steps yields a single protein fraction requiring only the addition of TFIID for the initiation of transcription at RNA polymerase II promoters .
resolution of whole cell extract through two chromatographic steps yields a single protein fraction requiring only the addition of tfiid for the initiation of transcription at rna polymerase ii promoters .
O O O O O O O O O O O O O O O O O O O B-protein_molecule O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule O O