10636
We also found that IL-2 protects T cell clones from IL-2 deprivation apoptosis accompanying active proliferation and enhanced expression of P53 , Rb and Bcl-xL proteins .
 ( protein: P53, None) , ( protein: Bcl-xL proteins, None) , ( protein: IL-2, None) , ( protein: IL-2, None) , ( protein: Rb, None) , ( cell line: T cell clones, 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: P53, None) , ( protein: Bcl-xL proteins, None) , ( protein: IL-2, None) , ( protein: IL-2, None) , ( protein: Rb, None) , ( cell line: T cell clones, None) 