8349
Thus CTL clones that recognized the viral , self , and bacterial peptides expressed a highly restricted alphabeta TCR phenotype .
 ( protein: TCR, None) , ( cell line: CTL 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: TCR, None) , ( cell line: CTL clones, None) 