6782
Surprisingly, we find also that the interaction between SLP-76 and Vav is not required for their cooperation in augmenting IL-2 promoter activity , as the two molecules appear to function in different signaling pathways upstream of IL-2 gene expression .
 ( protein: Vav, None) , ( protein: IL-2, None) , ( protein: SLP-76, None) , ( protein: IL-2, None) , ( DNA: IL-2 gene, None) , ( DNA: IL-2 promoter, 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:
 ( protein: Vav, None) , ( protein: IL-2, None) , ( protein: SLP-76, None) , ( protein: IL-2, None) , ( DNA: IL-2 gene, None) , ( DNA: IL-2 promoter, None) 