11378
Cell-to-cell contact activates the long terminal repeat of human immunodeficiency virus 1 through its kappaB motif .
 ( DNA: long terminal repeat, None) , ( DNA: kappaB motif, 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: long terminal repeat, None) , ( DNA: kappaB motif, None) 