Competent transcription initiation by RNA polymerase II in cell-free extracts from xeroderma pigmentosum groups B and D in an optimized RNA transcription assay .
competent transcription initiation by rna polymerase ii in cell-free extracts from xeroderma pigmentosum groups b and d in an optimized rna transcription assay .
B-other_name I-other_name I-other_name O B-protein_complex I-protein_complex I-protein_complex O B-cell_type I-cell_type O B-other_name I-other_name O O O O O O O O O O O