9580
Competent transcription initiation by RNA polymerase II in cell-free extracts from xeroderma pigmentosum groups B and D in an optimized RNA transcription assay.
 ( protein: RNA polymerase II, None) , ( cell type: cell-free extracts, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: RNA polymerase II, None) , ( cell type: cell-free extracts, None) 