9453
In the case of IgE class switching , IL-4 activates the IgE germline promoter by inducing the interaction of the transcription factor STAT6 ( IL-4STAT ) with a responsive DNA element in the proximal region of the promoter .
 ( protein: transcription factor, None) , ( protein: IgE, None) , ( protein: IL-4, None) , ( DNA: responsive DNA element, None) , ( protein: IL-4STAT, None) , ( DNA: promoter, None) , ( protein: STAT6, None) , ( DNA: proximal region, None) , ( protein: IgE, None) , ( DNA: IgE germline 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: transcription factor, None) , ( protein: IgE, None) , ( protein: IL-4, None) , ( DNA: responsive DNA element, None) , ( protein: IL-4STAT, None) , ( DNA: promoter, None) , ( protein: STAT6, None) , ( DNA: proximal region, None) , ( protein: IgE, None) , ( DNA: IgE germline promoter, None) 