5084
We conclude that IL-2 transcriptional regulation differs in tumor cell lines compared with normal T cells and that different costimulatory signals converge on the same cis-elements in the IL-2 promoter .
 ( cell type: normal T cells, None) , ( DNA: cis-elements, None) , ( protein: IL-2, None) , ( protein: IL-2, None) , ( DNA: IL-2 promoter, None) , ( cell line: tumor 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: normal T cells, None) , ( DNA: cis-elements, None) , ( protein: IL-2, None) , ( protein: IL-2, None) , ( DNA: IL-2 promoter, None) , ( cell line: tumor cell lines, None) 