13119
The latent membrane protein 1 ( LMP1 ) of Epstein-Barr virus ( EBV ) is required for EBV -induced immortalization of human B cells and causes tumorigenic transformation of cell lines .
 ( protein: LMP1, None) , ( cell type: human B cells, None) , ( protein: latent membrane protein 1, None) , ( cell line: cell lines, 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: LMP1, None) , ( cell type: human B cells, None) , ( protein: latent membrane protein 1, None) , ( cell line: cell lines, None) 