3671
The identification of oriP and the EBNA2-dependent enhancer as the major positive cis elements involved in regulating Cp activity in LCL suggests that EBNA gene transcription is largely autoregulated by EBNA 1 and EBNA 2 .
 ( DNA: oriP, None) , ( cell line: LCL, None) , ( protein: EBNA 2, None) , ( protein: EBNA 1, None) , ( DNA: Cp, None) , ( DNA: EBNA2-dependent enhancer, None) , ( DNA: EBNA gene, None) , ( DNA: cis elements, 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: oriP, None) , ( cell line: LCL, None) , ( protein: EBNA 2, None) , ( protein: EBNA 1, None) , ( DNA: Cp, None) , ( DNA: EBNA2-dependent enhancer, None) , ( DNA: EBNA gene, None) , ( DNA: cis elements, None) 