3484
The protein-tyrosine kinase ZAP-70 is implicated, together with the Src kinase p56(lck) , in controlling the early steps of the T-cell antigen receptor ( TCR ) signaling cascade .
 ( protein: ZAP-70, None) , ( protein: TCR, None) , ( protein: Src kinase, None) , ( protein: p56(lck), None) , ( protein: protein-tyrosine 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: ZAP-70, None) , ( protein: TCR, None) , ( protein: Src kinase, None) , ( protein: p56(lck), None) , ( protein: protein-tyrosine kinase, None) 