9767
Selection of a diverse TCR repertoire in response to an Epstein-Barr virus -encoded transactivator protein BZLF1 by CD8+ cytotoxic T lymphocytes during primary and persistent infection.
 ( cell type: CD8+ cytotoxic T lymphocytes, None) , ( protein: TCR, None) , ( protein: BZLF1, None) , ( protein: TCR repertoire, None) , ( protein: Epstein-Barr virus -encoded transactivator protein, 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:
 ( cell type: CD8+ cytotoxic T lymphocytes, None) , ( protein: TCR, None) , ( protein: BZLF1, None) , ( protein: TCR repertoire, None) , ( protein: Epstein-Barr virus -encoded transactivator protein, None) 