4218
Activation of the JAK /STAT pathway has been implicated in IL-7R signaling .
 ( protein: /STAT, None) , ( protein: IL-7R, None) , ( protein: JAK, 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: /STAT, None) , ( protein: IL-7R, None) , ( protein: JAK, None) 