679
These results show that IL-4 NAF is IL-4 Stat , which is activated by JAK3 in response to IL-4 receptor engagement .
 ( protein: JAK3, None) , ( protein: IL-4 Stat, None) , ( protein: IL-4, None) , ( protein: IL-4 NAF, None) , ( protein: IL-4, None) , ( protein: IL-4, 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: JAK3, None) , ( protein: IL-4 Stat, None) , ( protein: IL-4, None) , ( protein: IL-4 NAF, None) , ( protein: IL-4, None) , ( protein: IL-4, None) 