8559
Low levels of viral transcription ( basal transcription ) occur before expression of the virally encoded Tax protein ( Tax -mediated transcription ).
 ( protein: virally encoded Tax protein, None) , ( protein: Tax, 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: virally encoded Tax protein, None) , ( protein: Tax, None) 