4291
Our study suggests that the interaction of Tax with the transcription factor TFIIA may play a role in Tax -mediated transcriptional activation .
 ( protein: transcription factor, None) , ( protein: Tax, None) , ( protein: Tax, None) , ( protein: TFIIA, 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: transcription factor, None) , ( protein: Tax, None) , ( protein: Tax, None) , ( protein: TFIIA, None) 