4528
B-cell immortalization by Epstein-Barr virus ( EBV ) is dependent on permanent control of the cellular processes which normally regulate cell division and apoptosis , functions possessed by p53 in a number of normal cell types.
 ( cell type: B-cell, None) , ( protein: p53, 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: B-cell, None) , ( protein: p53, None) 