12261
T cell receptor ( TCR ) stimulation induces rapid tyrosine phosphorylation of cellular proteins , including Cbl , a protooncogene product whose function remains unclear.
 ( protein: Cbl, None) , ( protein: T cell receptor, None) , ( protein: TCR, None) , ( protein: protooncogene product, None) , ( protein: cellular proteins, 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: Cbl, None) , ( protein: T cell receptor, None) , ( protein: TCR, None) , ( protein: protooncogene product, None) , ( protein: cellular proteins, None) 