8615
Sequence analysis of the p40 promoter region identified two potential nuclear factor (NF)-kappaB binding sites conserved between mouse and human.
 potential nuclear factor (NF)-kappaB binding sites, p40 promoter region, p40
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 potential nuclear factor (NF)-kappaB binding sites, p40 promoter region, p40