8097
These experiments showed that, in fact, NF-kappaB was translocated to the nucleus following viral binding or purified viral ligand binding .
 NF-kappaB
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:
 NF-kappaB