9214
Phosphatidylinositol 3-kinase couples the interleukin-2 receptor to the cell cycle regulator E2F .
 ( protein: E2F, None) , ( protein: cell cycle regulator, None) , ( protein: interleukin-2 receptor, None) , ( protein: Phosphatidylinositol 3-kinase, 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: E2F, None) , ( protein: cell cycle regulator, None) , ( protein: interleukin-2 receptor, None) , ( protein: Phosphatidylinositol 3-kinase, None) 