5378
It has been shown that TCR stimulation requires both the membrane tyrosine phosphatase , CD45 , and the Src-family kinase , Lck , to result in cellular activation .
 ( protein: membrane tyrosine phosphatase, None) , ( protein: Lck, None) , ( protein: Src-family kinase, None) , ( protein: CD45, None) , ( protein: TCR, 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: membrane tyrosine phosphatase, None) , ( protein: Lck, None) , ( protein: Src-family kinase, None) , ( protein: CD45, None) , ( protein: TCR, None) 