9955
These results suggest that coordination of NF-kappaB and STAT6 may be required for induction of germline Cepsilon transcription by IL-4 , and that CD40 -mediated NF-kappaB activation may be important in regulating both enhancement of germline Cepsilon transcription and class switching to IgE .
 ( protein: CD40, None) , ( protein: NF-kappaB, None) , ( DNA: germline, None) , ( protein: NF-kappaB, None) , ( protein: IL-4, None) , ( protein: STAT6, None) , ( protein: IgE, None) , ( DNA: germline, 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: CD40, None) , ( protein: NF-kappaB, None) , ( DNA: germline, None) , ( protein: NF-kappaB, None) , ( protein: IL-4, None) , ( protein: STAT6, None) , ( protein: IgE, None) , ( DNA: germline, None) 