3310
The results obtained suggest that two Ad12 E1A domains are required to induce resistance of the cell lines to NK cells .
 ( cell type: NK cells, None) , ( DNA: E1A domains, None) , ( DNA: Ad12 E1A domains, 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:
 ( cell type: NK cells, None) , ( DNA: E1A domains, None) , ( DNA: Ad12 E1A domains, None) , ( cell line: cell lines, None) 