4714
Expression of constitutively active Raf-1 or MEK1 in Jurkat T cells enhanced the stimulation of IL-2 promoter -driven transcription stimulated by a calcium ionophore and PMA , and together with a calcium ionophore the expression of each protein was sufficient to stimulate NF-AT activity .
 ( DNA: IL-2 promoter, None) , ( cell type: T cells, None) , ( protein: NF-AT, None) , ( protein: MEK1, None) , ( cell line: Jurkat T cells, None) , ( protein: IL-2, None) , ( protein: Raf-1, 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: IL-2 promoter, None) , ( cell type: T cells, None) , ( protein: NF-AT, None) , ( protein: MEK1, None) , ( cell line: Jurkat T cells, None) , ( protein: IL-2, None) , ( protein: Raf-1, None) 