5410
In co-transfection experiments , the galectin-3 promoter was significantly up-regulated by expression vectors encoding the 40-kd Tax protein , a potent transactivator in HTLV-I .
 ( protein: galectin-3, None) , ( DNA: expression vectors, None) , ( DNA: galectin-3 promoter, None) , ( protein: 40-kd Tax protein, 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: galectin-3, None) , ( DNA: expression vectors, None) , ( DNA: galectin-3 promoter, None) , ( protein: 40-kd Tax protein, None) 