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Here we map the cis-acting elements that mediate interleukin responsiveness of the mouse IL-2R alpha gene using a thymic lymphoma-derived hybridoma ( PC60 ).
 ( cell line: thymic lymphoma-derived hybridoma, None) , ( cell line: PC60, None) , ( protein: mouse IL-2R alpha, None) , ( DNA: cis-acting elements, None) , ( DNA: mouse IL-2R alpha gene, 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 line: thymic lymphoma-derived hybridoma, None) , ( cell line: PC60, None) , ( protein: mouse IL-2R alpha, None) , ( DNA: cis-acting elements, None) , ( DNA: mouse IL-2R alpha gene, None) 