9946
The binding site for nuclear factor-kappaB ( NF-kappaB ) is present at the promoter region of the germline Cepsilon gene , but there is little information on whether this factor is involved in regulating IgE synthesis by human B cells .
 ( protein: NF-kappaB, None) , ( protein: nuclear factor-kappaB, None) , ( DNA: promoter region, None) , ( protein: IgE, None) , ( cell type: human B cells, None) , ( DNA: binding site, None) , ( DNA: germline Cepsilon 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:
 ( protein: NF-kappaB, None) , ( protein: nuclear factor-kappaB, None) , ( DNA: promoter region, None) , ( protein: IgE, None) , ( cell type: human B cells, None) , ( DNA: binding site, None) , ( DNA: germline Cepsilon gene, None) 