10875
Epstein-Barr virus ( EBV ), an oncogenic human herpesvirus , binds to and infects normal human B lymphocytes via CD21 , the CR2 complement receptor .
 ( cell type: normal human B lymphocytes, None) , ( protein: CR2 complement receptor, None) , ( protein: CD21, 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: normal human B lymphocytes, None) , ( protein: CR2 complement receptor, None) , ( protein: CD21, None) 