13674
Over a 3-week course of IL-2 therapy, in most patients the binding patterns of AP-1 , Sp1 , and NF-kappaB proteins changed to resemble those seen in PBMC activated by IL-2 in vitro.
 ( protein: NF-kappaB, None) , ( cell type: PBMC, None) , ( protein: Sp1, None) , ( protein: IL-2, None) , ( protein: IL-2, None) , ( protein: AP-1, 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: NF-kappaB, None) , ( cell type: PBMC, None) , ( protein: Sp1, None) , ( protein: IL-2, None) , ( protein: IL-2, None) , ( protein: AP-1, None) 