13787
Surprisingly, however, removal of PC4 from the unfractionated nuclear extract has no detrimental effect on OCA-B / Oct-1 -dependent transcription .
 ( protein: PC4, None) , ( protein: Oct-1, None) , ( protein: OCA-B, 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: PC4, None) , ( protein: Oct-1, None) , ( protein: OCA-B, None) 