7542
Involvement of NF-kappaB p50/p65 heterodimer in activation of the human pro-interleukin-1beta gene at two subregions of the upstream enhancer element .
 human pro-interleukin-1beta gene, NF-kappaB, upstream enhancer element, NF-kappaB p50/p65 heterodimer
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:
 human pro-interleukin-1beta gene, NF-kappaB, upstream enhancer element, NF-kappaB p50/p65 heterodimer