2217
The Tat -mediated increase in IL-2 promoter activity could selectively be blocked by antisense tat or-unlike the analogous effect of human T-cell lymphotropic virus type 1 Tax -by cyclosporin A .
 ( protein: IL-2, None) , ( protein: human T-cell lymphotropic virus type 1 Tax, None) , ( DNA: IL-2 promoter, None) , ( protein: Tat, 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: IL-2, None) , ( protein: human T-cell lymphotropic virus type 1 Tax, None) , ( DNA: IL-2 promoter, None) , ( protein: Tat, None) 