9311
The interleukin-1 receptor type I ( IL-1RI ) is associated with other proteins thus forming a complex system by which IL-1 exerts its various signals.
 ( protein: complex system, None) , ( protein: interleukin-1 receptor type I, None) , ( protein: IL-1, None) , ( protein: IL-1RI, 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: complex system, None) , ( protein: interleukin-1 receptor type I, None) , ( protein: IL-1, None) , ( protein: IL-1RI, None) 