3666
More extensive deletion of sequences upstream of Cp , including the EBNA2-dependent enhancer , resulted in nearly complete loss of Cp activity .
 ( DNA: Cp, None) , ( DNA: Cp, None) , ( DNA: EBNA2-dependent enhancer, 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:
 ( DNA: Cp, None) , ( DNA: Cp, None) , ( DNA: EBNA2-dependent enhancer, None) 