6
The peri-kappa B site mediates human immunodeficiency virus type 2 enhancer activation in monocytes but not in T cells .
 ( DNA: peri-kappa B site, None) , ( cell type: monocytes, None) , ( cell type: T cells, None) , ( DNA: human immunodeficiency virus type 2 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: peri-kappa B site, None) , ( cell type: monocytes, None) , ( cell type: T cells, None) , ( DNA: human immunodeficiency virus type 2 enhancer, None) 