13252
We now provide evidence for a CD2 -based signaling pathway which, in contrast to that of the T cell receptor , is independent of p56 .
 ( protein: CD2, None) , ( protein: p56, None) , ( protein: T cell receptor, 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: CD2, None) , ( protein: p56, None) , ( protein: T cell receptor, None) 