8708
These transcription factors are either not produced due to block of transcription of their respective genes ( Oct-2 , OBF-1 , PU.1 ), or are rendered inactive posttranslationally ( NF-kappa B , E47 ).
 ( DNA: OBF-1, None) , ( DNA: E47, None) , ( protein: transcription factors, None) , ( protein: PU.1, None) , ( protein: NF-kappa B, None) , ( DNA: Oct-2, 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:
 ( DNA: OBF-1, None) , ( DNA: E47, None) , ( protein: transcription factors, None) , ( protein: PU.1, None) , ( protein: NF-kappa B, None) , ( DNA: Oct-2, None) 