5490
One family of host transcription factors whose activity is altered by Tax includes NF-kappa B/Rel .
 ( protein: host transcription factors, None) , ( protein: NF-kappa B/Rel, None) , ( protein: Tax, None) , ( protein: transcription factors, 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: host transcription factors, None) , ( protein: NF-kappa B/Rel, None) , ( protein: Tax, None) , ( protein: transcription factors, None) 