2346
These data suggest that the regulation of IL-2 gene expression is a complex process and multiple cis-acting regulatory sites interact to exert different effects in T cells representative of alternative stages of differentiation .
 ( DNA: cis-acting regulatory sites, None) , ( protein: IL-2, None) , ( DNA: IL-2 gene, None) , ( cell type: T cells, 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: cis-acting regulatory sites, None) , ( protein: IL-2, None) , ( DNA: IL-2 gene, None) , ( cell type: T cells, None) 