11208
Tax1 , a potent activator of human T-cell lymphotropic virus type 1 ( HTLV-1 ) transcription , has been shown to modulate expression of many cellular genes .
 ( DNA: cellular genes, None) , ( protein: Tax1, 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: cellular genes, None) , ( protein: Tax1, None) 