5718
Importantly, additional testing of a corresponding set of peptides covering the complete sequence of pp65 on 10 of these donors identified individuals whose CD8(+) T cells recognized IE-1 but not pp65 and vice versa, clearly illustrating that either protein may be a major target.
 ( cell type: CD8(+) T cells, None) , ( protein: pp65, None) , ( protein: IE-1, None) , ( protein: pp65, 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(+) T cells, None) , ( protein: pp65, None) , ( protein: IE-1, None) , ( protein: pp65, None) 