7746
Furthermore, STATs 1 and -3 are effectively phosphorylated and activated to bind DNA in the absence of Lck expression in IFN-alpha -treated cells .
 ( protein: Lck, None) , ( protein: IFN-alpha, None) , ( cell line: IFN-alpha -treated cells, 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: Lck, None) , ( protein: IFN-alpha, None) , ( cell line: IFN-alpha -treated cells, None) 